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DE68912562D1 - Current pressure transducer with self-correcting nozzle using a magnetic fluid. - Google Patents

Current pressure transducer with self-correcting nozzle using a magnetic fluid.

Info

Publication number
DE68912562D1
DE68912562D1 DE89119767T DE68912562T DE68912562D1 DE 68912562 D1 DE68912562 D1 DE 68912562D1 DE 89119767 T DE89119767 T DE 89119767T DE 68912562 T DE68912562 T DE 68912562T DE 68912562 D1 DE68912562 D1 DE 68912562D1
Authority
DE
Germany
Prior art keywords
self
pressure transducer
magnetic fluid
current pressure
correcting nozzle
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.)
Expired - Fee Related
Application number
DE89119767T
Other languages
German (de)
Other versions
DE68912562T2 (en
Inventor
Robert I Potter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MOORE INDUSTRIES-INTERNATIONAL INC., SEPULVEDA, CA
Original Assignee
ALUM ROCK TECHNOLOGY SAN JOSE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/281,125 external-priority patent/US4874005A/en
Priority claimed from US07/414,395 external-priority patent/US4984600A/en
Application filed by ALUM ROCK TECHNOLOGY SAN JOSE filed Critical ALUM ROCK TECHNOLOGY SAN JOSE
Publication of DE68912562D1 publication Critical patent/DE68912562D1/en
Application granted granted Critical
Publication of DE68912562T2 publication Critical patent/DE68912562T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • F15B5/003—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities characterised by variation of the pressure in a nozzle or the like, e.g. nozzle-flapper system

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Nozzles (AREA)
  • Reciprocating Pumps (AREA)
DE1989612562 1988-12-07 1989-10-24 Current pressure transducer with self-correcting nozzle using a magnetic fluid. Expired - Fee Related DE68912562T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/281,125 US4874005A (en) 1988-12-07 1988-12-07 Current to pressure tranducer employing magnetic fluid
US07/414,395 US4984600A (en) 1989-09-29 1989-09-29 Self correcting nozzle useful with current to pressure transducer

Publications (2)

Publication Number Publication Date
DE68912562D1 true DE68912562D1 (en) 1994-03-03
DE68912562T2 DE68912562T2 (en) 1994-05-05

Family

ID=26960725

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989612562 Expired - Fee Related DE68912562T2 (en) 1988-12-07 1989-10-24 Current pressure transducer with self-correcting nozzle using a magnetic fluid.

Country Status (5)

Country Link
EP (1) EP0380762B1 (en)
JP (1) JP2539931B2 (en)
AU (1) AU619927B2 (en)
CA (1) CA1336784C (en)
DE (1) DE68912562T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7526765B2 (en) * 2022-09-01 2024-08-01 株式会社Ｓｃｒｅｅｎホールディングス Method for adjusting pump control parameters, computer program, recording medium, discharge device, and coating device
CN119327639A (en) * 2024-12-16 2025-01-21 山东省农业机械科学研究院 Flow self-adaptive nozzle, adjusting method and plant protection machine comprising nozzle

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939673A (en) * 1953-12-23 1960-06-07 Honeywell Regulator Co Electromechanical elements
US2869818A (en) * 1958-01-03 1959-01-20 Fleuret Marcel Electromagnetic metering valve
US3272078A (en) * 1964-10-12 1966-09-13 Honeywell Inc Controlling apparatus
GB1140785A (en) * 1966-07-29 1969-01-22 Sperry Rand Corp Improvements relating to control systems
DE1600840A1 (en) * 1967-02-06 1970-02-05 Licentia Gmbh Control valve
US3426970A (en) * 1968-03-25 1969-02-11 Honeywell Inc Vibration damping nozzle and flapper
US3817488A (en) * 1971-10-04 1974-06-18 Northeast Fluidics Inc Electro-pneumatic device
US4053952A (en) 1975-10-10 1977-10-18 The United States Of America As Represented By The Secretary Of The Department Of Health, Education And Welfare Magnetic fluid actuated control valve, relief valve and pump
US4579137A (en) 1981-10-06 1986-04-01 Inotek, Inc. Electro-pneumatic current to pressure transducer and pneumatic and electronic control circuits therefor
GB2181818B (en) * 1985-10-18 1989-10-25 Ti Domestic Appliances Ltd Fluid flow control valve
JP2621321B2 (en) * 1988-03-31 1997-06-18 株式会社島津製作所 Fluid pressure regulating valve device

Also Published As

Publication number Publication date
JP2539931B2 (en) 1996-10-02
CA1336784C (en) 1995-08-22
EP0380762B1 (en) 1994-01-19
JPH02225803A (en) 1990-09-07
AU4598589A (en) 1990-06-14
EP0380762A1 (en) 1990-08-08
AU619927B2 (en) 1992-02-06
DE68912562T2 (en) 1994-05-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MOORE INDUSTRIES-INTERNATIONAL INC., SEPULVEDA, CA

8339 Ceased/non-payment of the annual fee