GB2234396A - Double cut-off contact maker/breaker - Google Patents
Double cut-off contact maker/breaker Download PDFInfo
- Publication number
- GB2234396A GB2234396A GB9014916A GB9014916A GB2234396A GB 2234396 A GB2234396 A GB 2234396A GB 9014916 A GB9014916 A GB 9014916A GB 9014916 A GB9014916 A GB 9014916A GB 2234396 A GB2234396 A GB 2234396A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- slide
- contacts
- drive
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- VAYOSLLFUXYJDT-RDTXWAMCSA-N Lysergic acid diethylamide Chemical class C1=CC(C=2[C@H](N(C)C[C@@H](C=2)C(=O)N(CC)CC)C2)=C3C2=CNC3=C1 VAYOSLLFUXYJDT-RDTXWAMCSA-N 0.000 claims description 7
- 238000005760 Tripper reaction Methods 0.000 claims description 7
- 238000007373 indentation Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 7
- 230000009347 mechanical transmission Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- 102000007469 Actins Human genes 0.000 description 1
- 108010085238 Actins Proteins 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
- H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
- H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Slide Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Keying Circuit Devices (AREA)
Abstract
A double cut-off contact maker-breaker is provided wherein each contact bridge 23 has an associated individual drive piece 27 sliding in fixed guide surfaces (58) (Fig 2). On each drive piece are applicable a quick opening member 28 and a slide 29 movable parallel to the median plane (P) of the contact bridges. Slide (29) may have three lugs (62) as in (Fig 4) guided by slits (64) and tenons (65) for example. A variant is detailed (Fig. 11) comprising an additional striker providing an initial single cut-off action. <IMAGE>
Description
- 1 CONTACT MAKER-BREAKER WITH DOUBLE CUT-OFF The present invention
relates to a low voltage electric apparatus of the double cut-of f contact maker- breaker type, in which the mechanical transmission of the movement for opening the contact bridges is improved.
The documents EP-179 677 and EP-281 443 describe low voltage electric apparatus of the contact maker-breaker kind comprising several pole paths in which is inserted a mobile contact bridge cooperating with fixed contacts for providing a double cut-off in response, either to the actuation of a lock following the detection of an overcurrent defect (contact breaker mode) or a manual control (manual mode), or the control of an electromagnet (contact maker mode). In such apparatus, transmission of the movement from the armature of the electromagnet to the contact bridge is designed so as not to bring the lock into play, so that it is only operated in the contact breaker or manual modes.
It is desirable to improve the design of such apparatus in so far as the simplicity, size and reliability of the mechanical transmission of the movement for opening the contact bridges is concerned, while taking into account the electric characteristics and the volume which the other parts must necessarily occupy: magnetic and/or thermal trippers, manual control buttons, lock, electromagnet.
The document EP-270 158 shows a contact makerbreaker in which a contact holder houses, in recesses, the contact bridges of the respective pole paths and, in wells communicating with these recesses, houses opening pushers. The pushers are able to receive the opening energy on the one hand, f rom a rake lever movable by the armature of the electromagnet and, on the other hand, f rom an individual lever associated with a respective magnetic tripper. The high force exerted on the contact holder as well as the 2 - guiding and number of surfaces required for the different parts of the drive mechanism are not mechanically satisfactory.
The object of the invention is particularly to improve the arrangement of low voltage electric apparatus of the double cut-off contact maker-breaker type so as to make mechanical transmission of the opening movement to the contact bridges simpler and more reliable, while taking care not to operate the tripping mechanism in the contact maker mode.
It relates to a contact maker-breaker of double cutoff type comprising in a case:
- at least one pole Path having a mobile contact bridge cooperating with fixed contacts, - magnetic and/or thermal trippers disposed in the pole paths and adapted for causing opening of the contacts via a tripping mechanism when they detect an overcurrent, - at least one manual control button placed on the front face of the case and acting on the tripping mechanism for opening and closing the contacts and resetting the mechanism, and comprising - an electromagnet which has a coil and a mobile armature to which a control mechanism is coupled, this mechanism being adapted for opening and closing the contacts as a function of the current flowing through the coil, - drive means which cause the contact bridges to open in response to the movement, on the one hand, of a means for quick opening of the tripping mechanism and, on the other hand, of a part belonging to the control mechanism.
-By "front" and "rear" are designated the parts of the apparatus situated respectively towards the operator and away from the operator.
According to the invention, the drive means comprise, for each pole path, an individual drive piece adapted for sliding in guide surfaces which are fixed with 1 3 - respect to the case and associated with the respective contact bridge for receiving the impact of the quick opening member and driving the bridge; the mechanism comprises a slide movable parallel to the median plane of the contact bridges and adapted for sliding in guide surf aces of the case, the slide being applicable on the different drive pieces.
The combination of the translational movements of the slide and of the individual drive piece guided with respect to the case guarantees good transmission of the movement and reliable operation. The arrangement adopted is particularly advantageous when the tripping compartment is flat, the slide being a flat piece adjacent the compartment and having cantilevered feet applicable on the drive pieces in bearing zones close to the median plane.
Preferably, each contact bridge is separated from the respective drive piece and is urged by a contact pressure and return spring towards a wall of the drive piece on which the quick opening member and the slide are applicable, the drive piece having guide surfaces for the contact bridge. The drive piece is advantageously a stirrup, even a cage, covering a central portion of the contact bridge, guided in fixed guide surfaces formed in the case on the side of the contact bridge opposite the fixed and mobile contacts and offering a passage for the return and contact pressure spring.
The quick opening member and/or the slide may have a cross-piece joining together bearing zones applicable an the different drive pieces; in this case, the cross-piece may advantageously have indentations for the passage of bearing zones cantilevered on the slide and/or the quick opening member for being applied to the drive pieces close to the median plane.
Other features and advantages of the invention will be clear from the following description of a non limitative embodiment, with reference to the accompanying drawings in which:
Figure 1 is the diagram of a double cut-off contact maker-breaker in accordance with the invention; Figure 2 shows, in section, a drive piece coupled to 5 the contact bridge; Figure 3 is an elevational view of one embodiment of the contact maker- breaker; Figures 4 and 5 are sections through W-W and V-V of the apparatus of figure 3; Figure 6 shows on a larger scale a portion of figure 5; Figure 7 is a sectional view through the plane VIIViI of figure 3 showing the pieces applicable on the drive pieces; Figures 8 to 10 show a contact bridge of the apparatus in different operating phases; Figure 11 shows partially the diagram of a variant of the contact maker- breaker.
The contact maker-breaker 10 illustrated in figure 1 is a low voltage apparatus. Although this apparatus is multi-pole, some arrangements which will be described are applicable to a single pole apparatus.
The apparatus comprises an insulating case 11 formed of a body 12, a lid 13 and a base 14. The case has, on its front face, a projecting portion 15 and, on its rear face, elements 16 for fixing the apparatus by clipping on to a standardized rail.
Each pole current path is established between two power terminals 17, 18 and comprises conducting pieces 19, 20 connected to respective fixed contacts 21, 22 as well as a mobile contact bridge 23 with contacts 24, 25 associated respectively with contacts 21, 22.
The contact bridges 23 have a common plane of symmetry P; each is driven in the direction closing the contacts by a return and contact pressure spring 26 further bearing against the bottom of case 11. Each t contact bridge 23 can be controlled in the opening direction of the contacts by an individual drive piece 27. Piece 27, whose construction and guiding will be described further on, is separated from the bridge; it is itself driven, either in contact breaker or manual mode by a quick opening member 28, or in contact maker mode by a slide 29, the quick opening member and the slide moving parallel to the median plane P. Thus, in both operating modes a double cut-off is obtained; arc extinction devices 30 are associated with each cut-off chamber.
The quick opening member 28 is movable by a lock tripping mechanism 31 disposed in a central flat shaped compartment 32, i.e. of a respectively small thickness perpendicularly to the median plane. Lock 31 can be actuated from magnetic 33 and thermal 34 trippers mounted electrically in series in each pole path between the fixed contact 22 and terminal 18. Lock 31 can also be actuated from a reset and closure push-button or "OW button 35 and an opening push-button or "OFF" button 36 disposed in compartment 32 so as to project forwardly of case 11. In a variant, a single rotary reset, closure and opening handle may be provided. The quick opening member is in a top position (figures 1 and 3) under normal operating conditions,-the ON push-button 35 being pressed in. It is in the low position when an electric fault has been detected by one of trippers 33, 34 or when the OFF button 36 has been pressed.
Slide 29 is adjacent compartment 32 and is movable by an electromagnet 40. Slide 29 Is flat and rectilinear; its detailed form and its guiding will be described with reference to figures 4, 6 and 7.
The electromagnet 40 comprises a coil 41 wound about an insulating carcass 42, as well as a fixed yoke 43 and a mobile armature 44. A transmission mechanism is provided between the armature and the slide, this -mechanism comprises a lever 45 coupled to the armature, pivoting on 6 a fixed bearing 46 of the carcass or the case and having, at its free end 47, a nose which cooperates with a recess 48 of the slide for driving the latter.
The lever 45 is fixed to a traction spring 49 bearing also at a fixed point; spring 49 serves for returning the armature 44 - lever 45 - slide 29 assembly towards its rest position corresponding to opening of the contacts. A projecting element or boss 50 is associated with the lever so as to appear opposite a window 51 in the front face of the case for signalling the closed state of the contacts in the contact maker mode. The signalling boss may be provided at the front of slide 29. Of course, another transmission mechanism may be provided between armature 44 and slide 29, as well as another return system for the armature, the lever and the transmission system.
Instead of being included in case 11, the assembly formed by the electromagnet 40 and lever 45 may be housed in a fixed case separable from case 11.
The detailed construction of a preferred embodiment of the drive piece 27 is illustrated in figure 2.
Piece 27 is a stirrup partially closed in the form of a cage. Stirrup 27 has a front wall 52, two side walls 53, 54 with guide surfaces 55 for the contact bridge 23 and a rear wall 56 with a passage 57 for spring 26. The quick opening member 28 and slide 29 are applied to the opening on a first face 52a of wall 52, whereas spring 26 exerts its force via bridge 23 on a second f ace 52b of wall 52. The sides of stirrup 27 are guided in fixed guide surfaces 58 provided in the case. To reduce the size, the surfaces 58 are located on the side of the contact bridge which is opposite the fixed contacts 21, 22. Thus, satisfactory transmission is ensured to the case of the forces received by drive piece 27 and due to its selective operation by the quick opening member 28 and slide 29. It will be noted that the front wall 52 of the cage is advantageously of reduced thickness for contributing to j the small space required for the transmission device.
Figure 3 shows, in greater detail than in figure 1, one embodiment of the contact maker-breaker of the invention. It may in particular be noted that terminals 59 are provided f or connecting conductors for supplying the coil and for connecting a signalling circuit with auxiliary contacts not shown, these contacts being associated with the mobile assembly 44, 45 for indicating the state of the latter. A volume 60 is freed between the base of case 11 and electromagnet 40 for housing, as required, an electrodynamic repulsion limiting device. Such a device may for example use a pivoting contact lever with single cut-off interposed in the current path between terminal 17 and the fixed contact 21.
It can be seen in f igure 4 that the flat slide 29 comprises a portion 29a in the form of a rule with a recess 48 with which the nose of lever 45 cooperates, an intermediate portion 29b and a rear portion 29c formed of three lugs 62 ending in a cantilevered foot 63 (see f igures 1 and 3). Thus, the slide 29 is applied on the drive pieces 27 as close as possible to the median plane P. Each lug 62 is split at 64 so as to be held on a fixed tenon 65 of the case which is engaged in the slit. Elements of other shapes than slits 64 and tenons 65 may be provided for guiding lugs 62.
It will be noted that the front portion 29a of the slide is guided against guide surface 66 provided preferably in a projection 67 of carcass 42 of coil 41, whereas the rear portion 29c of the slide is guided both on tenons 65 and against fixed surfaces 68 of the case.
Figure 5 shows the quick opening member 28 of the tripping mechanism. This member is in the form of a crosspiece with guide ribs 70 guided in grooves 71 which are formed in between pole dividing walls 72. Behind grooves 71 are located ribs 73 contributing to the between pole electric insulation at the level of base 14. Thus, advantage is taken of the multipole character of the apparatus; grooves 71 and ribs 70, 73 provide the desired guiding while lengthening the leak lines between conducting parts of adjacent poles. The quick opening member 28 is subjected to springs 74 whose force is added to that of a spring, not shown, situated in lug 31 for accelerating opening of the contacts. Figure 6 shows, on a larger scale, the quick opening member 28 and the drive cages 27. For protection purposes, a cover 75 applied against the contact bridge. 23 and an axial finger 76 integrally moulded with the bottom of the case are associated with the ends of the springs. Portion I of figure 6 shows the position of the parts in the case of a cut-off controlled by the electromagnet 40; portion II of figure 6 shows the position of the parts when the contacts are closed.
In figure 7 can be seen one embodiment of the quick opening cross-piece 28 and slide 29. In particular, the cross-piece 28 comprises bearing zones 77 which can be applied on parts 27 and is provided with indentations 78 for the passage of cantilevered bearing zones 79 of the feet of slide 29. The indentations may of course be provided on the slide and the cantilevered bearing zones on the cross-piece, the essential thing being to obtain, with a flat slide guided in translation along compartment 32, a bearing point close to plane P on the drive piece 27 guided in translation.
Figure 8 shows a contact bridge 23 in the open condition in contact maker mode. Coil 41 of the electromagnet 40 then not being supplied with power, armature 44 is in a raised position with respect to yoke 43; lever 45 having pivoted clockwise, slide 29 occupies a low position in which it is applied on the drive piece 27 and f orces it to be applied on bridge 23, the latter compressing spring 26.
When a current flows through coil 41, slide 29 comes 1 back to the top position under the effect of spring 49, so that the contacts are closed. If one of the trippers 32, 33 then detects an overcurrent fault, lock 31 is actuated so that the quick opening member 28 moves down and strikes part 27 which drives bridge 23 and causes opening (figure 9).
In f igure 10, it can be seen that the conducting parts 19, 20 of the power pole paths have a C shape close to the f ixed contacts 21, 22 so that a high overcurrent generates at this position an electrodynamic repellent ef f ect. in this case, a particularly high repulsion may determine a relative movement of bridge 23 with respect to the drive piece 27 as far as a stop formed by wall 56 (figure 2).
In the variant illustrated in figure 11, a specific limiting system is associated with the contact bridges 23. This system comprises a striker 80 acting at an offcentred point of the contact bridge, i.e. at a point offset with respect to plane P. Striker 80 is actuated by the magnetic tripper 33 or by an additional magnetic tripper and it is returned by a spring 81. When a high short-circuit current appears between the terminals 17, 18, striker 80 strikes the contact bridge 23 so that the latter rocks and the mobile contact 25 is briefly separated from the fixed contact 22. This single cut-off actin is relayed by the downward movement of the mobile control member 28 which separates the mobile contact 24 from the fixed contact 21, producing a double cut-off which is held whereas striker 80 has risen again.
Claims (13)
1 i i,
2. Contact maker-breaker according to claim 1, characterized by the f act that each contact bridge (23) is separated from the respective drive piece (27) and is urged by a contact pressure and return spring (26) towards a wall (52) of the drive piece on which the quick opening member (28) and the slide (29) are applicable, the drive piece having guide surfaces (55) for the contact bridge.
3. Contact maker-breaker according to claim 1 or 2, characterized by the f act that each drive piece (27) has the f orm of a stirrup covering a central portion of the respective contact bridge (23), the stirrup being guided against fixed guide surfaces (58) formed in the case (11) on the side of the contact bridge which is opposite the fixed and mobile contacts.
4. Contact maker-breaker according to claim 3, characterized by the f act the stirrup (27) covers the contact bridge (23) by means of a thin wall (52).
5. Contact maker-breaker according to claim 3 or 4, characterized by the fact the stirrup (27) is partially closed in the form of a cage by a wall (56) having a passage (57) for the contact pressure and return spring (26).
6. Contact maker-breaker according to one of claims 1 to 5, characterized by the fact that:
- the tripping mechanism is housed in a flat compartment (32) whose means plane coincides substantially with the median plane (P) of the contact bridges, - the slide (29) is a flat piece located between a carcass (42) of the electromagnet (40) and the compartment (32), - the slide (29) has, at its end close to the drive pieces (27), cantilevered feet (63) applicable on said pieces in bearing zones close to said median plane.
7. Contact maker-breaker with double cut-off comprising in a case (11):
- at least one pole path having a mobile contact bridge (23) with a median plane (P), cooperating with fixed p contacts (21, 22), - magnetic (33) and/or thermal (34) trippers disposed in the pole paths and adapted for controlling opening of the contacts via a tripping mechanism (31) when they detect an overcurrent, - at least one manual control button (35, 36) placed on a front face of the case and acting on the tripping mechanism for opening and closing the contacts and resetting the mechanism, and comprising - an electromagnet (40) which has a coil and a mobile armature (44) to which a control mechanism is coupled, this mechanism being adapted for opening and closing the contacts as a function of the current flowing through the coil, - drive means which urge the contact bridges (23) to open in response to the movement, on the one hand, of a quick opening member (28) of the tripping mechanism and, on the other hand, of a piece belonging to the control mechanism, characterized by the fact that:
- the drive means comprise, for each pole path, an individual drive piece (27) associated with a respective contact bridge (23) for receiving the impact of the quick opening member and driving the bridge, - the control mechanism comprises a slide (29) movable parallel to the median plane (P), - the slide is a generally flat piece extending in a plane parallel to the median plane (P) and situated between a carcass (42) of the electromagnet and a flat compartment (32) which houses the tripping mechanism, so as to form a control assembly of small thickness, - the slide having lugs (62) in number equal to that of the poles, these lugs ending in cantilevered feet (63) applicable on the respective drive pieces (27) in bearing zones close to the median plane (P).
8. Contact maker-breaker according to claim 7, i 1 9 ( t characterized by the fact that the slide (29) is guided by guide elements (66) provided on the carcass (42) of the electromagnet (40).
9. Contact maker-breaker according to claim 7 or 8, characterized by the fact that the lugs (62) of the slide (29) have shaped elements (64) guided by shaped elements (65) integrally moulded with the case (11).
10. Contact maker-breaker according to one of claims 1 to 9, characterized by the fact that the quick opening member (28) has guide ribs (70) provided for sliding in grooves (71) which are formed in between pole dividing walls (72), so as to contribute to the electric insulation between poles.
11. Contact maker-breaker according to one of claims 2 to 10, characterized by the f act that, in each pole path, an electromagnet tripper is provided associated with a striker (80) capable of causing the contact bridge (23) to rock with respect to the drive piece (27) in response to a short circuit current, for producing a limitation of this current by a simple cut-off.
12. Contact maker-breaker according to one of claims 1 to 11, characterized by the fact that:
- the quick opening member (28) and/or the slide (29) comprise a crosspiece connecting together bearing zones (77) applicable on the different drive pieces (27), - the cross-piece is provided with indentations (78) for the passage of bearing zones (79) cantilevered on the slide and/or the quick opening member for being applied on the drive pieces close to the median plane.
13. Contact maker-breaker substantially as described herein with reference to the accompanying drawings.
Published 1991 at 7be Patent Office, State House, 66/71 High Holbom. London WCIR 47P. Further copies rnay be obtained from Sales Branch. Unit 6. Nine Mile Point. Cwrnfelinfacb, Cross Keys. Newport NP1 7HZ. Printed by Multiplex techniques ltd, St Mary Cray. Kent
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8910127A FR2650437B1 (en) | 1989-07-27 | 1989-07-27 | DOUBLE-BREAKING CONTACTOR |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9014916D0 GB9014916D0 (en) | 1990-08-22 |
| GB2234396A true GB2234396A (en) | 1991-01-30 |
| GB2234396B GB2234396B (en) | 1994-02-02 |
Family
ID=9384195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9014916A Expired - Fee Related GB2234396B (en) | 1989-07-27 | 1990-07-05 | Contact maker-breaker with double cut-off |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE1004482A3 (en) |
| CH (1) | CH683808A5 (en) |
| DE (1) | DE4023986A1 (en) |
| ES (1) | ES2023335A6 (en) |
| FR (1) | FR2650437B1 (en) |
| GB (1) | GB2234396B (en) |
| IT (1) | IT1246356B (en) |
| NL (1) | NL9001623A (en) |
| SE (1) | SE469202B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799572A1 (en) * | 1999-10-11 | 2001-04-13 | Schneider Electric Ind Sa | SWITCH-BREAKER |
| FR2953985A1 (en) * | 2009-12-11 | 2011-06-17 | Schneider Electric Ind Sas | Remote operated switchgear for use in outgoing circuit that is arranged in upstream of current limiter device of electric distribution device, has movable control contact that is closed on fixed control contact arranged on base of actuator |
| EP3367404A1 (en) * | 2017-02-27 | 2018-08-29 | Carling Technologies Inc. | Multiple contact circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0179677A1 (en) * | 1984-09-27 | 1986-04-30 | Telemecanique | Switching device with a variable composition |
| EP0281443A1 (en) * | 1987-02-13 | 1988-09-07 | Telemecanique | Safety switch employing remotely controlled on/off positions |
| GB2216719A (en) * | 1988-03-04 | 1989-10-11 | Telemecanique Electrique | Switches |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE43027T1 (en) * | 1984-12-18 | 1989-05-15 | Square D Starkstrom Gmbh | MOTOR PROTECTION SWITCH. |
| EP0237607A1 (en) * | 1986-03-21 | 1987-09-23 | Square D Company (Deutschland) Gmbh | Contactor |
| DE3637418A1 (en) * | 1986-11-03 | 1988-05-11 | Kloeckner Moeller Elektrizit | SWITCHING DEVICE |
-
1989
- 1989-07-27 FR FR8910127A patent/FR2650437B1/en not_active Expired - Lifetime
-
1990
- 1990-06-29 BE BE9000667A patent/BE1004482A3/en not_active IP Right Cessation
- 1990-07-02 SE SE9002311A patent/SE469202B/en not_active IP Right Cessation
- 1990-07-05 GB GB9014916A patent/GB2234396B/en not_active Expired - Fee Related
- 1990-07-11 IT IT02091890A patent/IT1246356B/en active IP Right Grant
- 1990-07-13 CH CH2340/90A patent/CH683808A5/en not_active IP Right Cessation
- 1990-07-17 NL NL9001623A patent/NL9001623A/en not_active Application Discontinuation
- 1990-07-26 ES ES9002018A patent/ES2023335A6/en not_active Expired - Lifetime
- 1990-07-27 DE DE4023986A patent/DE4023986A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0179677A1 (en) * | 1984-09-27 | 1986-04-30 | Telemecanique | Switching device with a variable composition |
| EP0281443A1 (en) * | 1987-02-13 | 1988-09-07 | Telemecanique | Safety switch employing remotely controlled on/off positions |
| GB2216719A (en) * | 1988-03-04 | 1989-10-11 | Telemecanique Electrique | Switches |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799572A1 (en) * | 1999-10-11 | 2001-04-13 | Schneider Electric Ind Sa | SWITCH-BREAKER |
| WO2001027958A1 (en) * | 1999-10-11 | 2001-04-19 | Schneider Electric Industries S.A. | Reverse current relay |
| AU763566B2 (en) * | 1999-10-11 | 2003-07-24 | Schneider Electric Industries Sas | Reverse current relay |
| FR2953985A1 (en) * | 2009-12-11 | 2011-06-17 | Schneider Electric Ind Sas | Remote operated switchgear for use in outgoing circuit that is arranged in upstream of current limiter device of electric distribution device, has movable control contact that is closed on fixed control contact arranged on base of actuator |
| EP3367404A1 (en) * | 2017-02-27 | 2018-08-29 | Carling Technologies Inc. | Multiple contact circuit breaker |
| CN108511297A (en) * | 2017-02-27 | 2018-09-07 | 嘉灵科技有限公司 | Multiconductor breaker |
| CN108511297B (en) * | 2017-02-27 | 2020-02-21 | 嘉灵科技有限公司 | Multi-contact circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2023335A6 (en) | 1992-01-01 |
| SE9002311L (en) | 1991-01-28 |
| DE4023986A1 (en) | 1991-01-31 |
| GB9014916D0 (en) | 1990-08-22 |
| CH683808A5 (en) | 1994-05-13 |
| SE469202B (en) | 1993-05-24 |
| IT9020918A0 (en) | 1990-07-11 |
| FR2650437B1 (en) | 1991-10-18 |
| IT9020918A1 (en) | 1992-01-11 |
| BE1004482A3 (en) | 1992-12-01 |
| SE9002311D0 (en) | 1990-07-02 |
| NL9001623A (en) | 1991-02-18 |
| GB2234396B (en) | 1994-02-02 |
| IT1246356B (en) | 1994-11-17 |
| FR2650437A1 (en) | 1991-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990705 |