US3342084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential mechanism
Assignee: DUALOC ENGINEERING Co
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Filing: 1965-05-17
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Granted: 1967-09-19
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:44
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H48/20; F16H2048/201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
A DIFFERENTIAL MECHANISM COMPRISING A ROTATABLE CASE FORMING A DRIVING MEMBER, A PAIR OF SPACED-APART, AXIALLY ALIGNED AXLE GEARS IN THE CASE JOURNALLED FOR ROTATION AT THE AXIS OF ROTATION OF THE CASE, A PINION GEAR INTERPOSED BETWEEN AND MESHING WITH EACH OF SAID AXLE GEARS, A PIN EXTENDING AXIALLY THROUGH SAID PINION GEAR AND HAVING ITS RADIALLY OUTER END FIXED IN SAID CASE AGAINST MOVEMENT CIRCUMFERENTIALLY OF THE CASE, MEANS FORMING AN OPENING EXTENDING AXIALLY THROUGH THE PINION GEAR AND THROUGH WHICH THE PIN EXTENDS, SAID OPENING BEING ELONGATED IN A DIRECTION RADIALLY OF THE PINION GEAR SUCH THAT THE PIN AND THE CASE ARE PERMITTED TO SHIFT IN A CIRCUMFERENTIAL DIRECTION RELATIVE TO THE PINION GEAR WHEN THE ELONGATED AXIS OF THE OPENING IN THE PINION GEAR IS ALIGNED IN A DIRECTION CIRCUMFERENTIALLY OF THE CASE OF A POSITION WHEREIN THE AXIS OF ROTATION OF THE PINION GEAR IS OFFSET FROM THE AXIS OF THE PIN TO THEREBY LOCK THE PINION GEAR AGAINST ROTATION IN THE CASE AND A SLEEVE ON SAID PIN FORMING A BEARING ROTATABLE ON THE PIN AND ENGAGING THE SIDES OF THE ELONGATED OPENING IN THE PINION GEAR, SAID SLEEVE BEING RADIALLY ELONGATED ON ITS OUTER SURFACE OF A LESSER EXTENT THAN THE OPENING IN THE PINION GEAR SO THAT THE PIN AND SLEEVE ARE PERMITTED TO SHIFT RADIALLY OF THE PINION AS A UNIT.
Claim 2
Dependent Claim
231 words
A DIFFERENTIAL MECHANISM COMPRISING A ROTATABLE CASE FORMING A DRIVING MEMBER, A PAIR OF SPACED-APART, AXIALLY ALIGNED AXLE GEARS IN THE CASE JOURNALLED FOR ROTATION AT THE AXIS OF ROTATION OF THE CASE, A PINION GEAR INTERPOSED BETWEEN AND MESHING WITH EACH OF SAID AXLE GEARS, A PIN EXTENDING AXIALLY THROUGH SAID PINION GEAR AND HAVING ITS RADIALLY OUTER END FIXED IN SAID CASE AGAINST MOVEMENT CIRCUMFERENTIALLY OF THE CASE, MEANS FORMING AN OPENING EXTENDING AXIALLY THROUGH THE PINION GEAR AND THROUGH WHICH THE PIN EXTENDS, SAID OPENING BEING ELONGATED IN A DIRECTION RADIALLY OF THE PINION GEAR SUCH THAT THE PIN AND THE CASE ARE PERMITTED TO SHIFT IN A CIRCUMFERENTIAL DIRECTION RELATIVE TO THE PINION GEAR WHEN THE ELONGATED AXIS OF THE OPENING IN THE PINION GEAR IS ALIGNED IN A DIRECTION CIRCUMFERENTIALLY OF THE CASE OF A POSITION WHEREIN THE AXIS OF ROTATION OF THE PINION GEAR IS OFFSET FROM THE AXIS OF THE PIN TO THEREBY LOCK THE PINION GEAR AGAINST ROTATION IN THE CASE AND A SLEEVE ON SAID PIN FORMING A BEARING ROTATABLE ON THE PIN AND ENGAGING THE SIDES OF THE ELONGATED OPENING IN THE PINION GEAR, SAID SLEEVE BEING RADIALLY ELONGATED ON ITS OUTER SURFACE OF A LESSER EXTENT THAN THE OPENING IN THE PINION GEAR SO THAT THE PIN AND SLEEVE ARE PERMITTED TO SHIFT RADIALLY OF THE PINION AS A UNIT.
References Cited (Backward Citations)
CH228358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |