US3610199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional sensor
Assignee: Motors Liquidation Co
•
Filing: 1970-04-29
•
Granted: 1971-10-05
•
Expires: 1990-04-29
Abstract
Abstract A unidirectional sensor which includes an operator mounted within a tubular guide for movement to an actuated position under a resilient bias. Primary and secondary seismic mass members surround the guide for movement axially thereat. A spring engages the secondary member to bias the secondary member into engagement with the primary member and hold the primary member in engagement with a stop to fix the weight members in a predetermined axial position. A plurality of balls are freely received within respective apertures in the guide and engage a radially tapered annular shoulder of the operator and an axially tapered internal annular wall of the primary member. Upon the application of an acceleration pulse of predetermined amplitude for a predetermined time to both weight members, the weight members move axially as the annular tapered wall forces the balls inwardly of the guide and along the operator shoulder until the balls pass through the narrower opening of the wall and release the operator for movement to actuated position. At lesser amplitude pulses, but above a minimum amplitude pulse, the secondary member moves axially of the guide while the primary member will remain stationary or move slightly axially of the balls and guide. Upon the cessation of the pulses of lesser amplitude, the secondary member moves in an opposite axial direction to impact the primary member and ensure its return to the predetermined axial position if it has moved.
Inventors
- 👤 Otakar P Prachar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/33; G; G01; G01P; G01P15/00; G01P15/02; G01P15/03; G01P15/032; G01P15/036
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
252 words
A unidirectional sensor comprising, in combination, a support, a generally axial guide mounted on the support, primary and secondary annular seismic mass members axially movable relative to the guide, means exerting a predetermined axial bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, an operator slidably supported on the guide for axial movement relative thereto, resilient means biasing the operator axially of the guide, means releasably engageable with the primary mass member and operator to block axial movement of the operator and resist movement of the primary mass member from the predetermined axial position, the application of an acceleration pulse of predetermined amplitude and time to the primary mass members moving the primary mass member through a predetermined axial distance to release the engageable means from both the primary mass member and operator and release the operator for axial movement relative to the guide, the application of lesser amplitude pulses moving the secondary mass member agaInst the predetermined bias thereon independently of any movement of the primary mass member relative to the engageable means, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position should any movement of the primary mass member relative to the engageable means occur.
Claim 2
Dependent Claim
252 words
A unidirectional sensor comprising, in combination, a support, a generally axial guide mounted on the support, primary and secondary annular seismic mass members axially movable relative to the guide, means exerting a predetermined axial bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, an operator slidably supported on the guide for axial movement relative thereto, resilient means biasing the operator axially of the guide, means releasably engageable with the primary mass member and operator to block axial movement of the operator and resist movement of the primary mass member from the predetermined axial position, the application of an acceleration pulse of predetermined amplitude and time to the primary mass members moving the primary mass member through a predetermined axial distance to release the engageable means from both the primary mass member and operator and release the operator for axial movement relative to the guide, the application of lesser amplitude pulses moving the secondary mass member agaInst the predetermined bias thereon independently of any movement of the primary mass member relative to the engageable means, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position should any movement of the primary mass member relative to the engageable means occur.
Claim 3
Dependent Claim
262 words
A unidirectional sensor comprising, in combination, a support, a generally axial guide mounted on the support, primary and secondary annular seismic mass members axially movable relative to the guide, means exerting a predetermined axial bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, an operator slidably supported on the guide for axial movement relative thereto, resilient means biasing the operator axially of the guide, means wedgingly engageable with axially and radially directed juxtaposed surfaces of the primary mass member and operator to block axial movement of the operator and resist movement of the primary mass member from the predetermined axial position, the application of an acceleration pulse of predetermined amplitude and time to the primary mass member moving the primary mass member through a predetermined axial distance to release the wedgingly engageable means from both the primary mass member and operator and release the operator for axial movement relative to the guide, the application of lesser amplitude pulses moving the secondary mass member against the predetermined bias thereon independently of any movement of the primary mass member relative to the wedgingly engageable means, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position should any movement of the primary mass member relative to the wedgingly engageable means occur.
Claim 4
Dependent Claim
262 words
A unidirectional sensor comprising, in combination, a support, a generally axial guide mounted on the support, primary and secondary annular seismic mass members axially movable relative to the guide, means exerting a predetermined axial bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, an operator slidably supported on the guide for axial movement relative thereto, resilient means biasing the operator axially of the guide, means wedgingly engageable with axially and radially directed juxtaposed surfaces of the primary mass member and operator to block axial movement of the operator and resist movement of the primary mass member from the predetermined axial position, the application of an acceleration pulse of predetermined amplitude and time to the primary mass member moving the primary mass member through a predetermined axial distance to release the wedgingly engageable means from both the primary mass member and operator and release the operator for axial movement relative to the guide, the application of lesser amplitude pulses moving the secondary mass member against the predetermined bias thereon independently of any movement of the primary mass member relative to the wedgingly engageable means, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position should any movement of the primary mass member relative to the wedgingly engageable means occur.
Claim 5
Dependent Claim
259 words
A unidirectional sensor comprising, in combination, a support, a generally axial guide mounted on the support, a pair of annular seismic mass members axially movable relative to the guide, means exerting a predetermined axial bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, an operator slidably supported on the guide for axial movement relative thereto, resilient means biasing the operator axially of the guide, a plurality of balls wedgingly engageable with axially and radially directed surfaces of the primary mass member and operator to block axial movement of the operator and resist movement of the primary mass member from the predetermined axial position, the application of an acceleration pulse of predetermined amplitude and time to the primary mass member moving the primary mass members through a predetermined axial distance to release the balls from both the primary mass member and operator surfaces and release the operator for axial movement relative to the guide, the application of lesser amplitude pulses moving the secondary mass member against the predetermined bias thereon independently of any movement of the primary mass member relative to the balls, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position should any movement of the primary mass member relative to the balls occur.
Claim 6
Dependent Claim
259 words
A unidirectional sensor comprising, in combination, a support, a generally axial guide mounted on the support, a pair of annular seismic mass members axially movable relative to the guide, means exerting a predetermined axial bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, an operator slidably supported on the guide for axial movement relative thereto, resilient means biasing the operator axially of the guide, a plurality of balls wedgingly engageable with axially and radially directed surfaces of the primary mass member and operator to block axial movement of the operator and resist movement of the primary mass member from the predetermined axial position, the application of an acceleration pulse of predetermined amplitude and time to the primary mass member moving the primary mass members through a predetermined axial distance to release the balls from both the primary mass member and operator surfaces and release the operator for axial movement relative to the guide, the application of lesser amplitude pulses moving the secondary mass member against the predetermined bias thereon independently of any movement of the primary mass member relative to the balls, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position should any movement of the primary mass member relative to the balls occur.
Claim 7
Dependent Claim
314 words
A unidirectional sensor comprising, in combination, a support, a generally tubular linear guide having a plurality of circumferentially spaced radial apertures therethrough, primary and secondary annular seismic mass members surrounding the guide, means On each mass member slidably engaging the guide, means exerting a predetermined bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, the primary mass member including an annular tapered wall of predetermined axial extent overlying the guide apertures, an operator slidably mounted within the guide and having a radially extending annular shoulder, resilient means biasing the operator axially within the guide, a plurality of balls, each respective to an aperture of the guide and freely received therein, the balls being engageable with the mass member tapered wall to locate the balls within the guide and in engagement with the operator shoulder to block axial movement of the operator, the primary mass member being movable through a predetermined axial distance upon the application of an acceleration pulse of predetermined amplitude and time thereto to move the wall thereof out of engagement with the balls, the balls being forced radially inwardly of the operator shoulder against the force of the resilient means as the primary mass member wall moves axially and out of engagement with the balls, the operator shoulder thereupon moving the balls outwardly of the guide apertures and out of engagement therewith, the application of lesser amplitude pulses moving the secondary mass member against the predetermined bias thereon independently of any movement of the primary mass member, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position.
Claim 8
Dependent Claim
314 words
A unidirectional sensor comprising, in combination, a support, a generally tubular linear guide having a plurality of circumferentially spaced radial apertures therethrough, primary and secondary annular seismic mass members surrounding the guide, means On each mass member slidably engaging the guide, means exerting a predetermined bias on the secondary mass member, cooperating stop means on the primary mass member and support engageable with each other under the bias to locate the weight members in engagement with each other and in a predetermined axial position with respect to the guide, the primary mass member including an annular tapered wall of predetermined axial extent overlying the guide apertures, an operator slidably mounted within the guide and having a radially extending annular shoulder, resilient means biasing the operator axially within the guide, a plurality of balls, each respective to an aperture of the guide and freely received therein, the balls being engageable with the mass member tapered wall to locate the balls within the guide and in engagement with the operator shoulder to block axial movement of the operator, the primary mass member being movable through a predetermined axial distance upon the application of an acceleration pulse of predetermined amplitude and time thereto to move the wall thereof out of engagement with the balls, the balls being forced radially inwardly of the operator shoulder against the force of the resilient means as the primary mass member wall moves axially and out of engagement with the balls, the operator shoulder thereupon moving the balls outwardly of the guide apertures and out of engagement therewith, the application of lesser amplitude pulses moving the secondary mass member against the predetermined bias thereon independently of any movement of the primary mass member, the secondary mass member impacting the primary mass member upon cessation of such lesser amplitude pulses to ensure return of the primary mass member to the predetermined axial position.
References Cited (Backward Citations)
US2585749A
Cited
US2649311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |