US3438282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking differential
Assignee: RAY F THORNTON
•
Filing: 1962-02-26
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Granted: 1969-04-15
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Ray F Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:25
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H2048/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A DIFFERENTIAL POWER TRANSMISSION FOR USE WITH A POWER SOURCE, COMPRISING A ROTATABLE CASE; A FLOATING SPIDER DISPOSED IN SAID CASE, SAID SPIDER BEING MOVABLE RELATIVE TO THE CASE ABOUT THE AXIS OF SAID CASE; PINIONS DISPOSED ON SAID SPIDER; SAID GEAR MEMBERS DISPOSED ON EACH SIDE OF SAID SPIDER IN MESH WITH SAID PINIONS AND HAVING LOCKING GROOVES ON THE INSIDE FACES THEREOF; AND SPREADABLE PRESSURE MEMBERS ROTATABLE WITH SAID CASE AND HAVING CAM SURFACES THEREON IN ENGAGEMENT WITH THE SPIDER; SAID PRESSURE MEMBERS SPREADING TO ENGAGE THE LOCKING GROOVES IN SAID SIDE GEAR MEMBERS IN THE LOCKED CONDITION OF THE DEVICE UPON ROTATION OF THE CASE SO THAT SAID PRESSURE MEMBERS EXERT A FORCE AGAINST SAID FLOATING SPIDER THROUGH SAID CAM SURFACES; ANY GEAR SPREAD FORCE
Claim 2
Dependent Claim
128 words
A DIFFERENTIAL POWER TRANSMISSION FOR USE WITH A POWER SOURCE, COMPRISING A ROTATABLE CASE; A FLOATING SPIDER DISPOSED IN SAID CASE, SAID SPIDER BEING MOVABLE RELATIVE TO THE CASE ABOUT THE AXIS OF SAID CASE; PINIONS DISPOSED ON SAID SPIDER; SAID GEAR MEMBERS DISPOSED ON EACH SIDE OF SAID SPIDER IN MESH WITH SAID PINIONS AND HAVING LOCKING GROOVES ON THE INSIDE FACES THEREOF; AND SPREADABLE PRESSURE MEMBERS ROTATABLE WITH SAID CASE AND HAVING CAM SURFACES THEREON IN ENGAGEMENT WITH THE SPIDER; SAID PRESSURE MEMBERS SPREADING TO ENGAGE THE LOCKING GROOVES IN SAID SIDE GEAR MEMBERS IN THE LOCKED CONDITION OF THE DEVICE UPON ROTATION OF THE CASE SO THAT SAID PRESSURE MEMBERS EXERT A FORCE AGAINST SAID FLOATING SPIDER THROUGH SAID CAM SURFACES; ANY GEAR SPREAD FORCE
References Cited (Backward Citations)
US1324860A
Cited
US1739399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |