Patent US3269498A successfully refreshed from Google Patents.
US3269498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque limiting clutch
Assignee: AT&T Inc
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Filing: 1964-08-05
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Granted: 1966-08-30
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Gerhard E Hoenig
- 👤 Arden L Van Nest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:13
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A TORQUE-LIMITING CLUTCH COMPRISING: A ROTATABLE DRIVING MEMBER; A ROTATABLE DRIVEN MEMBER AXIALLY ALIGNED WITH SAID DRIVING MEMBER; A TORSION BAR AXIALLY POSITIONED AND AXIALLY ALIGNED WITH RESPECT TO SAID DRIVING AND DRIVEN MEMBERS AND DRIVINGLY ENGAGEABLE AT ONE END WITH ONE OF SAID MEMBERS AND AT ITS OTHER END WITH THE OTHER OF SAID MEMBERS, SAID TORSION BAR BEING LONGITUDINALLY MOVABLE WITH RESPECT TO SAID MEMBERS TO DISENGAGE FROM AT LEAST ONE OF SAID MEMBERS; MEANS TENDING TO RESILIENTLY URGE SAID BAR LONGITUDINALLY OUT OF ENGAGEMENT WITH SAID ONE MEMBER; SAID BAR HAVING AN ELEMENT PROTRUDING RADIALLY THEREFROM NEAR ONE END OF SAID BAR; THE MEMBER WHICH IS DRIVINGLY ENGAGEABLE WITH THE OTHER END OF SAID BAR HAVING A RESTRAINING PORTION WHICH IS NORMALLY AXIALLY ALIGNED AND ENGAGED WITH SAID ELEMENT TO MAINTAIN DRIVING ENGAGEMENT OF SAID BAR WITH SAID ONE MEMBER, SAID ELEMENT AND SAID RESTRAINING PORTION BEING RELATIVELY ANGULARLY MOVABLE OUT OF AXIAL ALIGNMENT BY TWISTING OF SAID BAR SUCH THAT SAID URGING MEANS MAY DISENGAGE SAID BAR FROM SAID ONE MEMBER UPON THE APPLICATION OF A PREDETERMINED TORQUE TO SAID BAR.
Claim 2
Dependent Claim
185 words
A TORQUE-LIMITING CLUTCH COMPRISING: A ROTATABLE DRIVING MEMBER; A ROTATABLE DRIVEN MEMBER AXIALLY ALIGNED WITH SAID DRIVING MEMBER; A TORSION BAR AXIALLY POSITIONED AND AXIALLY ALIGNED WITH RESPECT TO SAID DRIVING AND DRIVEN MEMBERS AND DRIVINGLY ENGAGEABLE AT ONE END WITH ONE OF SAID MEMBERS AND AT ITS OTHER END WITH THE OTHER OF SAID MEMBERS, SAID TORSION BAR BEING LONGITUDINALLY MOVABLE WITH RESPECT TO SAID MEMBERS TO DISENGAGE FROM AT LEAST ONE OF SAID MEMBERS; MEANS TENDING TO RESILIENTLY URGE SAID BAR LONGITUDINALLY OUT OF ENGAGEMENT WITH SAID ONE MEMBER; SAID BAR HAVING AN ELEMENT PROTRUDING RADIALLY THEREFROM NEAR ONE END OF SAID BAR; THE MEMBER WHICH IS DRIVINGLY ENGAGEABLE WITH THE OTHER END OF SAID BAR HAVING A RESTRAINING PORTION WHICH IS NORMALLY AXIALLY ALIGNED AND ENGAGED WITH SAID ELEMENT TO MAINTAIN DRIVING ENGAGEMENT OF SAID BAR WITH SAID ONE MEMBER, SAID ELEMENT AND SAID RESTRAINING PORTION BEING RELATIVELY ANGULARLY MOVABLE OUT OF AXIAL ALIGNMENT BY TWISTING OF SAID BAR SUCH THAT SAID URGING MEANS MAY DISENGAGE SAID BAR FROM SAID ONE MEMBER UPON THE APPLICATION OF A PREDETERMINED TORQUE TO SAID BAR.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |