Patent US5424501A successfully refreshed from Google Patents.
US5424501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deceleration sensor switch for use in a vehicle occupant safety system
Assignee: TRW Technar Inc
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Filing: 1994-05-16
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Granted: 1995-06-13
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Expires: 2014-05-16
Abstract
Abstract A deceleration sensor switch (10) comprises a base (12) and a mass (60) pivotable from an unactuated position to an actuated position when the mass is subjected to deceleration of at least a predetermined magnitude. A first electrically conductive portion (70) is connected to a first electrical terminal (46) mounted on the base (12). A support structure (40) supports the mass (60) on the base (12) to pivot from the unactuated position to the actuated position. The support structure (40) comprises a second electrical terminal (42) mounted on the base (12) and a second electrically conductive portion (50) interconnecting the second electrical terminal (42) and the mass (60). The second electrically conductive portion (50) comprises a spring portion (52) which deflects into electrical contact with the first electrically conductive portion (70) to electrically connect the first and second electrical terminals (46, 42) when the mass (60) pivots to the actuated position.
Inventors
- 👤 James Purves
- 👤 Saroj Manandhar
- 👤 Long T. Su
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:50
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14; H01H1/00; H01H1/12; H01H1/14; H01H1/18
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
197 words
A deceleration sensor switch comprising: a base; a first electrical terminal mounted on said base; a first electrically conductive strip connected to said first electrical terminal; a mass; support means for pivotably supporting said mass on said base such that said mass can pivot from an unactuated position to an actuated position when said mass is subjected to deceleration of at least a predetermined magnitude, said support means comprising (i) a second electrical terminal mounted on said base and (ii) a second electrically conductive strip interconnecting said second electrical terminal and said mass to enable said mass and said second electrically conductive strip to pivot together about a fixed pivot point located at said second electrical terminal from said unactuated position to said actuated position, said mass being fixedly connected to an end of said second electrically conductive strip; said second electrically conductive strip being located on only one side of said mass and comprising a spring portion which deflects into electrical contact with said first electrically conductive strip to electrically connect said first and second electrical terminals when said mass and said second electrically conductive strip pivot about said fixed pivot point to said actuated position.
Claim 2
Dependent Claim
197 words
A deceleration sensor switch comprising: a base; a first electrical terminal mounted on said base; a first electrically conductive strip connected to said first electrical terminal; a mass; support means for pivotably supporting said mass on said base such that said mass can pivot from an unactuated position to an actuated position when said mass is subjected to deceleration of at least a predetermined magnitude, said support means comprising (i) a second electrical terminal mounted on said base and (ii) a second electrically conductive strip interconnecting said second electrical terminal and said mass to enable said mass and said second electrically conductive strip to pivot together about a fixed pivot point located at said second electrical terminal from said unactuated position to said actuated position, said mass being fixedly connected to an end of said second electrically conductive strip; said second electrically conductive strip being located on only one side of said mass and comprising a spring portion which deflects into electrical contact with said first electrically conductive strip to electrically connect said first and second electrical terminals when said mass and said second electrically conductive strip pivot about said fixed pivot point to said actuated position.
Claim 3
Dependent Claim
58 words
A deceleration sensor switch according to claim 1 wherein said first electrically conductive strip comprises a spring portion against which said spring portion of said second electrically conductive strip engages to electrically connect said first and second electrical terminals when said mass and said second electrically conductive strip pivot about said fixed pivot point to said actuated position.
Claim 4
Dependent Claim
39 words
A deceleration sensor switch according to claim 1 wherein said base defines an arcuate groove in which said mass moves when said mass and said second electrically conductive strip pivot about said fixed pivot point to said actuated position.
Claim 5
Dependent Claim
49 words
A deceleration sensor switch according to claim 3 further comprising a first stop against which said mass is biased by said spring portion of said second electrically conductive strip when said mass is in said unactuated position, said first stop being located at one end of said arcuate groove.
Claim 6
Dependent Claim
39 words
A deceleration sensor switch according to claim 4 wherein said base defines a second stop located at an opposite end of said arcuate groove and against which said mass abuts when said mass is in a fully actuated position.
Claim 7
Dependent Claim
24 words
A deceleration sensor switch according to claim 4 wherein said base and said first stop comprise a single continuous piece of plastic molded material.
Claim 8
Dependent Claim
25 words
A deceleration sensor switch according to claim 1 further comprising means for adjusting the stiffness of said spring portion of said second electrically conductive strip.
Claim 9
Dependent Claim
37 words
A deceleration sensor switch according to claim 2 further comprising a first stop against which said mass is biased by said spring portion of said second electrically conductive strip when said mass is in said unactuated position.
Claim 10
Dependent Claim
34 words
A deceleration sensor switch according to claim 8 wherein said spring portion of said second electrically conductive strip is located between said first stop and said spring portion of said first electrically conductive strip.
Claim 11
Dependent Claim
20 words
A deceleration sensor switch according to claim 1 further comprising a cover engageable with said base to enclose said mass.
Claim 12
Dependent Claim
183 words
A deceleration sensor switch comprising: a base including a planar surface area and means defining an arcuate groove adjacent said planar surface area; a first electrical terminal mounted on said planar surface area; a first electrically conductive portion connected to said first electrical terminal; a mass located in part in said arcuate groove; support means for pivotably supporting said mass on said planar surface area such that said mass can pivot along said arcuate groove from an unactuated position to an actuated position when said mass is subjected to deceleration of at least a predetermined magnitude, said support means comprising a second electrical terminal mounted on said planar surface area and a second electrically conductive portion interconnecting said second electrical terminal and said mass, at least parts of said second electrically conductive portion overlying part of said planar surface area and part of said arcuate groove, said second electrically conductive portion comprising a spring portion which deflects into electrical contact with said first electrically conductive portion to electrically connect said first and second electrical terminals when said mass pivots to said actuated position.
Claim 13
Dependent Claim
183 words
A deceleration sensor switch comprising: a base including a planar surface area and means defining an arcuate groove adjacent said planar surface area; a first electrical terminal mounted on said planar surface area; a first electrically conductive portion connected to said first electrical terminal; a mass located in part in said arcuate groove; support means for pivotably supporting said mass on said planar surface area such that said mass can pivot along said arcuate groove from an unactuated position to an actuated position when said mass is subjected to deceleration of at least a predetermined magnitude, said support means comprising a second electrical terminal mounted on said planar surface area and a second electrically conductive portion interconnecting said second electrical terminal and said mass, at least parts of said second electrically conductive portion overlying part of said planar surface area and part of said arcuate groove, said second electrically conductive portion comprising a spring portion which deflects into electrical contact with said first electrically conductive portion to electrically connect said first and second electrical terminals when said mass pivots to said actuated position.
Claim 14
Dependent Claim
47 words
A deceleration sensor switch according to claim 11 wherein said first electrically conductive portion comprises a spring portion against which said spring portion of said second electrically conductive portion engages to electrically connect said first and second electrical terminals when said mass pivots to said actuated position.
Claim 15
Dependent Claim
39 words
A deceleration sensor switch according to claim 11 wherein said base defines a second stop located at an opposite end of said arcuate groove and against which said mass abuts when said mass is in a fully actuated position.
Claim 16
Dependent Claim
24 words
A deceleration sensor switch according to claim 11 wherein said base and said first stop comprise a single continuous piece of plastic molded material.
Claim 17
Dependent Claim
25 words
A deceleration sensor switch according to claim 11 further comprising means for adjusting the stiffness of said spring portion of said second electrically conductive portion.
Claim 18
Dependent Claim
37 words
A deceleration sensor switch according to claim 12 further comprising a first stop against which said mass is biased by said spring portion of said second electrically conductive portion when said mass is in said unactuated position.
Claim 19
Dependent Claim
34 words
A deceleration sensor switch according to claim 16 wherein said spring portion of said second electrically conductive portion is located between said first stop and said spring portion of said first electrically conductive portion.
Claim 20
Dependent Claim
20 words
A deceleration sensor switch according to claim 11 further comprising a cover engageable with said base to enclose said mass.
Claim 21
Dependent Claim
173 words
A deceleration sensor switch comprising: a base; a first electrical terminal mounted on said base; a first electrically conductive portion connected to said first electrical terminal; a mass; support means for pivotably supporting said mass on said base such that said mass can pivot from an unactuated position to an actuated position when said mass is subjected to deceleration of at least a predetermined magnitude, said support means comprising a second electrical terminal mounted on said base and a second electrically conductive portion interconnecting said second electrical terminal and said mass, said second electrically conductive portion comprising a spring portion which deflects into electrical contact with said first electrically conductive portion to electrically connect said first and second electrical terminals when said mass pivots to said actuated position; a first stop against which said mass is biased by said spring portion of said second electrically conductive portion when said mass is in said unactuated position; and a second stop against which said mass abuts when said mass is in a fully actuated position.
Claim 22
Dependent Claim
173 words
A deceleration sensor switch comprising: a base; a first electrical terminal mounted on said base; a first electrically conductive portion connected to said first electrical terminal; a mass; support means for pivotably supporting said mass on said base such that said mass can pivot from an unactuated position to an actuated position when said mass is subjected to deceleration of at least a predetermined magnitude, said support means comprising a second electrical terminal mounted on said base and a second electrically conductive portion interconnecting said second electrical terminal and said mass, said second electrically conductive portion comprising a spring portion which deflects into electrical contact with said first electrically conductive portion to electrically connect said first and second electrical terminals when said mass pivots to said actuated position; a first stop against which said mass is biased by said spring portion of said second electrically conductive portion when said mass is in said unactuated position; and a second stop against which said mass abuts when said mass is in a fully actuated position.
Claim 23
Dependent Claim
47 words
A deceleration sensor switch according to claim 19 wherein said first electrically conductive portion comprises a spring portion against which said spring portion of said second electrically conductive portion engages to electrically connect said first and second electrical terminals when said mass pivots to said actuated position.
Claim 24
Dependent Claim
26 words
A deceleration sensor switch according to claim 19 wherein said base and said first and second stops comprise a single continuous piece of plastic molded material.
Claim 25
Dependent Claim
25 words
A deceleration sensor switch according to claim 19 further comprising means for adjusting the stiffness of said spring portion of said second electrically conductive portion.
Claim 26
Dependent Claim
34 words
A deceleration sensor switch according to claim 20 wherein said spring portion of said second electrically conductive portion is located between said first stop and said spring portion of said first electrically conductive portion.
Claim 27
Dependent Claim
20 words
A deceleration sensor switch according to claim 19 further comprising a cover engageable with said base to enclose said mass.
References Cited (Backward Citations)
US1057879A
Cited
US2076251A
Cited
US2263471A
Cited
US2902292A
Cited
US2850291A
Cited
US3053949A
Cited
US3489917A
Cited
US3639710A
Cited
US3762494A
Cited
US3731022A
Cited
US4022997A
Cited
US4104493A
Cited
US4249046A
Cited
US5034580A
Cited
US5306883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-06-12 | 1998-12-12 | 1999-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-12 | 2002-12-12 | 2003-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-12 | 2006-12-12 | 2007-06-13 | $7700.00 | Window Closed / Lapsed |