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GB1288399A - - Google Patents

Info

Publication number
GB1288399A
GB1288399A GB6000069A GB6000069A GB1288399A GB 1288399 A GB1288399 A GB 1288399A GB 6000069 A GB6000069 A GB 6000069A GB 6000069 A GB6000069 A GB 6000069A GB 1288399 A GB1288399 A GB 1288399A
Authority
GB
United Kingdom
Prior art keywords
cartridge
thyristor
water
plunger
immersion
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
Application number
GB6000069A
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
Application filed filed Critical
Publication of GB1288399A publication Critical patent/GB1288399A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/24—Arrangements of inflating valves or of controls thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2209/00—Energy supply or activating means
    • B63B2209/02—Energy supply or activating means water activated switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Air Bags (AREA)
  • Emergency Lowering Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1288399 Inflatable lifejackets SAAB-SCANIA AB 9 Dec 1969 [9 Dec 1968] 60000/69 Heading B7U [Also in Division F4] A lifejacket 1 is automatically inflated on immersion by a water-sensitive electronic switching device 27, 28 which fires an explosive cartridge 20 to pierce a CO 2 gas bottle 12 via a plunger 18, lever 16 and piercer 15. Plunger 18 alternatively may be actuated by handle 8. The switching device comprises electrode 35 and casing 25 forming between them an annular space 37 to which, on immersion, water is admitted through apertures 40. The device is in a circuit with a thyristor 42, a battery 26, a resistor 39 and the cartridge 20, Fig. 3 (not shown). Thyristor 42 prevents firing of the cartridge until sufficient water has entered space 37 to raise its conductance above a threshold value, above which an avalanche effect occurs to pass a current sufficient to fire the cartridge. The thyristor may be replaced by an equivalent transistor assembly. A coloured indicator 22, visible through window 23, indicates whether the device has been used. The lifejacket comprises an inflatable envelope within a cover 1 having a zip 4 with weakened zones which cause opening of the cover on inflation of the envelope, Fig. 5 (not shown).
GB6000069A 1968-12-09 1969-12-09 Expired GB1288399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16776/68A SE327924B (en) 1968-12-09 1968-12-09

Publications (1)

Publication Number Publication Date
GB1288399A true GB1288399A (en) 1972-09-06

Family

ID=20302728

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6000069A Expired GB1288399A (en) 1968-12-09 1969-12-09

Country Status (6)

Country Link
US (1) US3602661A (en)
JP (1) JPS4843240B1 (en)
DE (1) DE1960650A1 (en)
FR (1) FR2025679A1 (en)
GB (1) GB1288399A (en)
SE (1) SE327924B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165977A (en) * 1984-10-04 1986-04-23 Hurtig Karl W Naval rescue optical signalling device

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1360212A (en) * 1970-12-21 1974-07-17 Martin J Survival or like packs particularly suitable for airmen
US4024440A (en) * 1975-02-13 1977-05-17 Conax Corporation Water activated pressurized gas release device
JPS50152338A (en) * 1975-02-21 1975-12-08
US4096466A (en) * 1977-04-20 1978-06-20 Johnson Dennis J Underwater switching
FR2480393A2 (en) * 1980-04-14 1981-10-16 Legris Remote controlled fluid release valve - has cable operated striker and tubular guide member containing control rod
US4253628A (en) * 1979-11-06 1981-03-03 The United States Of America As Represented By The Secretary Of The Navy Automatic parachute release system
WO1982004232A1 (en) * 1981-05-27 1982-12-09 Steven A Becnel Liquid-sensitive actuator for displacement-responsive devices
US4582494A (en) * 1981-05-27 1986-04-15 Becnel Steven A Protected liquid-sensitive actuator for displacement responsive devices
DE3124753A1 (en) * 1981-06-24 1983-01-13 Bernhardt Apparatebau Gmbh & Co, 2000 Hamburg Releasing device for parts of equipment, in particular breathing masks, for parachutists
GB2130972B (en) * 1982-06-03 1985-09-04 Josef Elmar Bissig Rescue apparatus
DE3342097C2 (en) * 1983-11-22 1985-12-05 Autoflug Gmbh, 2084 Rellingen Pressurized gas device for rescue services
FR2569305B1 (en) * 1984-08-14 1986-12-19 Pyromeca ELECTRICAL SWITCHABLE CONTACTOR AND PYROTECHNIC DEVICE USING SUCH A CONTACTOR
FR2609178B1 (en) * 1986-12-30 1989-08-11 Conax Florida Corp FLUID CONDUCTIVITY DETECTOR
FR2617794A1 (en) * 1987-07-07 1989-01-13 Godefroy Michel Safety device for users falling in the water
US5034847A (en) * 1988-10-27 1991-07-23 Brain John E Portable light beacon
CA2029235C (en) * 1990-11-02 2002-01-22 John Errington Brain Water-activated survival lamp unit and an improved water sensing switch therefor
CN101495365B (en) * 2005-11-09 2012-05-09 贝尔直升机泰克斯特龙公司 Crash attenuation system for aircraft
US8418957B2 (en) * 2005-11-09 2013-04-16 Textron Innovations Inc. Crash attenuation system for aircraft
US8588996B2 (en) 2005-11-09 2013-11-19 Textron Innovations Inc. Aircraft occupant protection system
WO2009054844A1 (en) * 2007-10-22 2009-04-30 Bell Helicopter Textron Inc. Crash attenuation system for aircraft
US8474753B2 (en) * 2007-10-22 2013-07-02 Textron Innovations Inc. Aircraft occupant protection system
WO2010036207A1 (en) * 2008-09-29 2010-04-01 Nanyang Polytechnic Programmable pressure activated floatation trigger device
US9260192B2 (en) 2009-07-27 2016-02-16 Textron Innovations Inc. Active vent and re-inflation system for a crash attentuation airbag
SG175471A1 (en) * 2010-04-26 2011-11-28 Xg Vault Pte Ltd Underwater activated life jacket inflation system
US8721379B2 (en) * 2010-11-05 2014-05-13 Steven A. Becnel Electronic fluid activated release device for life preserver
US9056661B2 (en) * 2010-11-19 2015-06-16 John G. Macri Rescue and retrieval apparatus and system and method of using same
CA2821326C (en) * 2010-12-29 2015-11-24 Bell Helicopter Textron Inc. Active vent and re-inflation system for a crash attenuation airbag
WO2012115633A1 (en) 2011-02-23 2012-08-30 Bell Helicopter Textron Inc. High efficiency external airbag for crash attenuation
EP2670633B1 (en) 2011-03-30 2016-02-24 Bell Helicopter Textron Inc. Constant area vent for external crash attenuation airbag
US20170057604A1 (en) * 2015-09-02 2017-03-02 Mustang Survival Ulc Stabilizing Cap for Personal Flotation Device
US9841145B1 (en) * 2016-10-26 2017-12-12 Sparton Corporation Axial piercing mechanism for pressurized gas canister
RU174744U1 (en) * 2017-03-27 2017-10-31 Акционерное общество "Уфимский завод эластомерных материалов, изделий и конструкций" Gas filling device for inflatable rescue equipment
US10908057B2 (en) 2018-09-04 2021-02-02 Microchip Technology Incorporated Activating a submersible sensor based on electrode output, and related systems, methods and devices
CA3128928A1 (en) 2019-02-06 2020-08-13 Boost Ideas, Llc Water safety garment, related apparatus and methods
CN115303450B (en) * 2022-09-05 2024-08-30 吉林省德天诺安全科技有限公司 Electronic control device and control method for inflatable life jacket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165977A (en) * 1984-10-04 1986-04-23 Hurtig Karl W Naval rescue optical signalling device

Also Published As

Publication number Publication date
FR2025679A1 (en) 1970-09-11
SE327924B (en) 1970-08-31
US3602661A (en) 1971-08-31
JPS4843240B1 (en) 1973-12-17
DE1960650A1 (en) 1970-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years