US3174351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism
Assignee: ZF Active Safety US Inc
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Filing: 1961-11-01
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Granted: 1965-03-23
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Richard R Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:29
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/20; F16H1/22; F16H39/00; F16H57/00; F16H57/12; F16H2057/121; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/1987; Y10T74/19893; Y10T74/19898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A DRIVE ASSEMBLY FOR SELECTIVELY DRIVING AND IMPARTING AN ANTI-ROTATIONAL FORCE TO AN OUTPUT GEAR INCLUDING A HOUSING, A GEAR ROTATABLY MOUNTED IN SAID HOUSING, A HOLLOW HUB ON SAID GEAR HAVING AXIALLY EXTENDING SPLINES ON THE INTERNAL SURFACE THEREOF, A HOLLOW SHAFT ROTATABLY MOUNTED IN SAID HOUSING AND HAVING ONE END EXTENDING INTO SAID HUB AND RADIALLY SPACED THEREFROM, THE OTHER END OF SAID HOLLOW SHAFT CONNECTED TO SAID OUTPUT GEAR, EXTERNAL AND INTERNAL AXIALLY EXTENDING SPLINES ON ONE END OF SAID SHAFT, FIRST FRICTION PLATES ENGAGING AND AXIALLY MOVABLE ON SAID SPLINES IN SAID HUB, SECOND FRICTION PLATES ENGAGING AND AXIALLY MOVABLE ON SAID EXTERNAL SPLINES AND BEING INTERLEAVED WITH SAID FIRST FRICTION PLACES, FIRST STOP MEANS IN SAID HUB OR SAID ONE END OF SAID HOLLOW SHAFT TO LIMIT AXIAL MOVEMENT OF SAID FIRST AND SECOND PLATES IN A FIRST AXIAL DIRECTION, MEANS FOR NORMALLY APPLYING A FIRST FORCE TO SAID FIRST SECOND PLATES IN A DIRECTION OPPOSITE TO SAID FIRST AND SECOND PLATES IN DIRECTION AGAINST SAID FIRST STOP MEANS TO THEREBY COUPLE SAID FIRST AND SECOND PLATES, A NON-ROTATABLE SHAFT MOUNTED ON SAID HOUSING AND EXTENDING INTO SAID HOLLOW SHAFT AND BEING RADIALLY SPACED THEREFROM, EXTERNAL AXIALLY EXTENDING
Claim 2
Dependent Claim
203 words
A DRIVE ASSEMBLY FOR SELECTIVELY DRIVING AND IMPARTING AN ANTI-ROTATIONAL FORCE TO AN OUTPUT GEAR INCLUDING A HOUSING, A GEAR ROTATABLY MOUNTED IN SAID HOUSING, A HOLLOW HUB ON SAID GEAR HAVING AXIALLY EXTENDING SPLINES ON THE INTERNAL SURFACE THEREOF, A HOLLOW SHAFT ROTATABLY MOUNTED IN SAID HOUSING AND HAVING ONE END EXTENDING INTO SAID HUB AND RADIALLY SPACED THEREFROM, THE OTHER END OF SAID HOLLOW SHAFT CONNECTED TO SAID OUTPUT GEAR, EXTERNAL AND INTERNAL AXIALLY EXTENDING SPLINES ON ONE END OF SAID SHAFT, FIRST FRICTION PLATES ENGAGING AND AXIALLY MOVABLE ON SAID SPLINES IN SAID HUB, SECOND FRICTION PLATES ENGAGING AND AXIALLY MOVABLE ON SAID EXTERNAL SPLINES AND BEING INTERLEAVED WITH SAID FIRST FRICTION PLACES, FIRST STOP MEANS IN SAID HUB OR SAID ONE END OF SAID HOLLOW SHAFT TO LIMIT AXIAL MOVEMENT OF SAID FIRST AND SECOND PLATES IN A FIRST AXIAL DIRECTION, MEANS FOR NORMALLY APPLYING A FIRST FORCE TO SAID FIRST SECOND PLATES IN A DIRECTION OPPOSITE TO SAID FIRST AND SECOND PLATES IN DIRECTION AGAINST SAID FIRST STOP MEANS TO THEREBY COUPLE SAID FIRST AND SECOND PLATES, A NON-ROTATABLE SHAFT MOUNTED ON SAID HOUSING AND EXTENDING INTO SAID HOLLOW SHAFT AND BEING RADIALLY SPACED THEREFROM, EXTERNAL AXIALLY EXTENDING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |