GB2236619B - Improvements in and relating to velocity change sensors - Google Patents

Improvements in and relating to velocity change sensors

Info

Publication number
GB2236619B
GB2236619B GB9021738A GB9021738A GB2236619B GB 2236619 B GB2236619 B GB 2236619B GB 9021738 A GB9021738 A GB 9021738A GB 9021738 A GB9021738 A GB 9021738A GB 2236619 B GB2236619 B GB 2236619B
Authority
GB
United Kingdom
Prior art keywords
relating
velocity change
change sensors
sensors
velocity
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
GB9021738A
Other versions
GB9021738D0 (en
GB2236619A (en
Inventor
Torbjorn Thuen
Harald Snorre Husby
Allen K Breed
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.)
Breed Automotive Technology Inc
Original Assignee
Breed Automotive Technology Inc
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 US07/447,108 external-priority patent/US5031931A/en
Application filed by Breed Automotive Technology Inc filed Critical Breed Automotive Technology Inc
Publication of GB9021738D0 publication Critical patent/GB9021738D0/en
Publication of GB2236619A publication Critical patent/GB2236619A/en
Application granted granted Critical
Publication of GB2236619B publication Critical patent/GB2236619B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/135—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by making use of contacts which are actuated by a movable inertial mass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/141—Details
    • H01H35/142—Damping means to avoid unwanted response

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Air Bags (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
GB9021738A 1989-10-06 1990-10-05 Improvements in and relating to velocity change sensors Expired - Fee Related GB2236619B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41822889A 1989-10-06 1989-10-06
US07/447,108 US5031931A (en) 1989-12-06 1989-12-06 Velocity change sensor with spring bias

Publications (3)

Publication Number Publication Date
GB9021738D0 GB9021738D0 (en) 1990-11-21
GB2236619A GB2236619A (en) 1991-04-10
GB2236619B true GB2236619B (en) 1994-08-10

Family

ID=27024036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9021738A Expired - Fee Related GB2236619B (en) 1989-10-06 1990-10-05 Improvements in and relating to velocity change sensors

Country Status (5)

Country Link
DE (1) DE4031332C2 (en)
FR (1) FR2652908B1 (en)
GB (1) GB2236619B (en)
IT (1) IT1241708B (en)
SE (1) SE513091C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322325A (en) * 1989-10-19 1994-06-21 Breed Automotive Technology, Inc. Safing velocity change sensor
US5237134A (en) * 1989-12-06 1993-08-17 Breed Automotive Technology, Inc. Gas damped crash sensor
FR2681695B1 (en) * 1991-09-24 1997-01-10 Breed Automotive Tech SAFETY SPEED VARIATION DETECTOR.
DE4140691A1 (en) * 1991-12-10 1993-06-17 Trw Repa Gmbh VEHICLE-SENSITIVE MECHANICAL CONTACTOR
RU2522891C2 (en) * 2012-10-18 2014-07-20 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Magnetic threshold device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1386421A (en) * 1971-02-22 1975-03-05 Allied Chem Crash sensing switch
US4020302A (en) * 1975-02-21 1977-04-26 Nissan Motor Co., Ltd. Sensor having spring biasing structure to retain conductive bridging inertial mass in a non-operative position
GB1519698A (en) * 1975-04-23 1978-08-02 Nissan Motor Acceleration sensor
GB2051482A (en) * 1979-05-09 1981-01-14 Breed Corp Inertia switch
GB1586611A (en) * 1976-09-07 1981-03-25 Eaton Corp Viscous damped crash sensor
US4266107A (en) * 1979-08-20 1981-05-05 The United States Of America As Represented By The United States Department Of Energy Acceleration switch
GB2086484A (en) * 1980-10-30 1982-05-12 Manwaring Alan Motor vehicle overrunning fuel cut-off control
WO1988008613A1 (en) * 1987-04-24 1988-11-03 Ddm Hopt + Schuler Gmbh & Co. Kg Acceleration switch
US4816627A (en) * 1987-12-24 1989-03-28 Ford Motor Company Fluid damped acceleration sensor
WO1990010301A1 (en) * 1989-02-21 1990-09-07 Automotive Technologies International, Inc. Short-travel mechanical crash sensor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB779194A (en) * 1954-03-01 1957-07-17 Tiltman Langley Ltd Improvements relating to impact detectors
US3141936A (en) * 1962-10-17 1964-07-21 John M Boyle Conductive springs and ball acceleration switch
US3655929A (en) * 1970-10-23 1972-04-11 Ford Motor Co Device for detecting and signalling a change of more than a prescribed amount in the rate of movement of an object
US3812726A (en) * 1972-09-28 1974-05-28 Technar Inc Velocity responsive apparatus
US3889130A (en) * 1973-06-04 1975-06-10 Breed Corp Mass in liquid vehicular crash sensor
DE7913253U1 (en) * 1979-05-08 1983-04-28 Kelle, Manfred, 4902 Bad Salzuflen Electric switch
US4329549A (en) * 1980-04-29 1982-05-11 Breed Corporation Magnetically biased velocity change sensor
US4857680A (en) * 1988-12-22 1989-08-15 Ford Motor Company Acceleration sensor
DE4022388A1 (en) * 1990-07-13 1992-01-23 Hopt & Schuler Ddm ACCELERATION SWITCH WITH SNAP SPRING

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1386421A (en) * 1971-02-22 1975-03-05 Allied Chem Crash sensing switch
US4020302A (en) * 1975-02-21 1977-04-26 Nissan Motor Co., Ltd. Sensor having spring biasing structure to retain conductive bridging inertial mass in a non-operative position
GB1519698A (en) * 1975-04-23 1978-08-02 Nissan Motor Acceleration sensor
GB1586611A (en) * 1976-09-07 1981-03-25 Eaton Corp Viscous damped crash sensor
GB2051482A (en) * 1979-05-09 1981-01-14 Breed Corp Inertia switch
US4266107A (en) * 1979-08-20 1981-05-05 The United States Of America As Represented By The United States Department Of Energy Acceleration switch
GB2086484A (en) * 1980-10-30 1982-05-12 Manwaring Alan Motor vehicle overrunning fuel cut-off control
WO1988008613A1 (en) * 1987-04-24 1988-11-03 Ddm Hopt + Schuler Gmbh & Co. Kg Acceleration switch
US4816627A (en) * 1987-12-24 1989-03-28 Ford Motor Company Fluid damped acceleration sensor
WO1990010301A1 (en) * 1989-02-21 1990-09-07 Automotive Technologies International, Inc. Short-travel mechanical crash sensor

Also Published As

Publication number Publication date
GB9021738D0 (en) 1990-11-21
DE4031332A1 (en) 1991-04-18
IT9067746A0 (en) 1990-10-02
SE9002471D0 (en) 1990-07-20
GB2236619A (en) 1991-04-10
IT1241708B (en) 1994-01-31
SE9002471L (en) 1991-04-07
SE513091C2 (en) 2000-07-03
FR2652908A1 (en) 1991-04-12
IT9067746A1 (en) 1992-04-02
DE4031332C2 (en) 2001-02-08
FR2652908B1 (en) 1995-02-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011005