US3232139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operated partial lock differential
Assignee: Individual
•
Filing: 1962-02-02
•
Granted: 1966-02-01
•
Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Claude H Nickell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:16
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/27; F16H2048/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN HYDRAULICALLY PROPORTIONED OUTPUT DIFFERENTIAL HAVING (A) A PAIR OF INTERFITTING CASING MEMBERS, (B) A DRIVING MEMBER, (C) FASTENING MEANS CONNECTING SAID DRIVING MEMBER AND SAID PAIR OF CASING MEMBERS, (D) A PAIR OF OUTPUT SHAFTS ROTATABLY SUPPORTING SAID DIFFERENTIAL, (E) A SIDE GEAR REMOVABLY ATTACHED TO EACH OF SAID OUTPUT SHAFTS, (F) A SHROUD MOUNTED CENTRALLY OF SAID CASING MEMBERS INTERMEDIATE SAID SIDE GEARS, (1) A PLURALITY OF PINS CARRIED BY SAID SHROUD, (2) MULTIPLE COMPENSATING GEARS ROTATABLY CARRIED BY SAID PINS AND ADAPTED TO MESH WITH SAID SIDE GEARS TO FORM A MECHANICAL GEAR TRAIN DRIVE, (G) MEANS FOR INTRODUCING HYDRAULIC FLUID INTO THE AREAS OF ENGAGEMENT OF SAID GEAR TRAIN DRIVE INCLUDING (1) A SERIES OF AUTOMATIC DIRECTIONAL FLOW CONTROL VALVE ASSEMBLIES IN SAID SHROUD HAVING (A) A PAIR OF OPPOSED VALVE MEMBERS, (B) SPRING MEANS FOR URGING SAID VALVE MEMBERS TOWARDS EACH OTHER,
Claim 2
Dependent Claim
147 words
AN HYDRAULICALLY PROPORTIONED OUTPUT DIFFERENTIAL HAVING (A) A PAIR OF INTERFITTING CASING MEMBERS, (B) A DRIVING MEMBER, (C) FASTENING MEANS CONNECTING SAID DRIVING MEMBER AND SAID PAIR OF CASING MEMBERS, (D) A PAIR OF OUTPUT SHAFTS ROTATABLY SUPPORTING SAID DIFFERENTIAL, (E) A SIDE GEAR REMOVABLY ATTACHED TO EACH OF SAID OUTPUT SHAFTS, (F) A SHROUD MOUNTED CENTRALLY OF SAID CASING MEMBERS INTERMEDIATE SAID SIDE GEARS, (1) A PLURALITY OF PINS CARRIED BY SAID SHROUD, (2) MULTIPLE COMPENSATING GEARS ROTATABLY CARRIED BY SAID PINS AND ADAPTED TO MESH WITH SAID SIDE GEARS TO FORM A MECHANICAL GEAR TRAIN DRIVE, (G) MEANS FOR INTRODUCING HYDRAULIC FLUID INTO THE AREAS OF ENGAGEMENT OF SAID GEAR TRAIN DRIVE INCLUDING (1) A SERIES OF AUTOMATIC DIRECTIONAL FLOW CONTROL VALVE ASSEMBLIES IN SAID SHROUD HAVING (A) A PAIR OF OPPOSED VALVE MEMBERS, (B) SPRING MEANS FOR URGING SAID VALVE MEMBERS TOWARDS EACH OTHER,
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |