Patent US3845836A successfully refreshed from Google Patents.
US3845836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for vehicles
Assignee: Dynamit Nobel AG
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Filing: 1972-05-01
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Granted: 1974-11-05
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Expires: 1992-05-01
Abstract
Abstract A safety belt for motor vehicles is connected to a tensioning device which is responsive to a deceleration detector for tensioning the belt upon detection of a predetermined degree of deceleration indicating collision with an object. In this way the safety belt can be worn loosely with comfort under normal conditions and the tensioning device will automatiallly provide for tightening the belt to the proper degree to safely restrain the passenger in the event of a collision.
Inventors
- 👤 H Bendler
- 👤 G Marondel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:45
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/34; B60R22/46; B60R22/4628
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
Safety belt arrangement for vehicles, especially automotive vehicles, comprising a belt securable at one end to the vehicle and securable at the other end to tensioning means for tensioning said belt, sensor means for detecting a predetermined value of deceleration, and actuator means for operating said tensioning means to tension said belt in response to detection of said predetermined value of deceleration by said sensor means, said teNsioning means including an impeller wheel having a plurality of blades disposed for rotation on an axle within a housing, said axle also being connected to said other end of said belt so as to wind said belt upon rotation thereof, said actuator means including compressed gas means mounted on said housing for directing compressed gas against the blades of said impeller wheel to effect rotation of said axle.
Claim 2
Dependent Claim
136 words
Safety belt arrangement for vehicles, especially automotive vehicles, comprising a belt securable at one end to the vehicle and securable at the other end to tensioning means for tensioning said belt, sensor means for detecting a predetermined value of deceleration, and actuator means for operating said tensioning means to tension said belt in response to detection of said predetermined value of deceleration by said sensor means, said teNsioning means including an impeller wheel having a plurality of blades disposed for rotation on an axle within a housing, said axle also being connected to said other end of said belt so as to wind said belt upon rotation thereof, said actuator means including compressed gas means mounted on said housing for directing compressed gas against the blades of said impeller wheel to effect rotation of said axle.
Claim 3
Dependent Claim
35 words
Safety belt arrangement as defined in claim 1 wherein said compressed gas means includes electrical operating means to release the gas therefrom against the blades of said impeller wheel in response to said sensor means.
Claim 4
Dependent Claim
38 words
Safety belt arrangement as defined in claim 1 wherein a tension drum is mounted on said axle, said other end of said belt being secured to said tension drum which is secured to said axle for rotation therewith.
Claim 5
Dependent Claim
43 words
Safety belt arrangement as defined in claim 1 wherein a tension drum is frictionally mounted on said axle, said other end of said belt being secured to said tension durm so as to be wound on said drum with rotation of said axle.
Claim 6
Dependent Claim
35 words
Safety belt arrangement as defined in claim 4 wherein said compressed gas means includes electrical operating means to release the gas therefrom against the blades of said impeller wheel in response to said sensor means.
Claim 7
Dependent Claim
34 words
Safety belt arrangement as defined in claim 5 wherein said tensioning means further includes automatic locking means for locking said impeller wheel against rotation in a direction opposite that provided by said actuator means.
Claim 8
Dependent Claim
41 words
Safety belt arrangement as defined in claim 4 wherein said impeller is secured to said axle for rotation therewith and a cam member is provided between said axle and said tension drum for frictionally connecting said tension drum to said axle.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |