US3306042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid transmission for drive and driven members
Assignee: Cooper Bessemer Corp
•
Filing: 1963-11-21
•
Granted: 1967-02-28
•
Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 William R Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:34
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/14; F04B53/142; F16; F16H; F16H43/00; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714; Y10T137/1782; Y10T137/2496; Y10T137/2514
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A HYDRAULIC POWER TRANSMISSION FOR CONNECTING A LINEALLY RECIPROCATING DRIVING MEMBER TO A RECIPROCABLE DRIVEN MEMBER, SAID TRANSMISSION COMPRISING: A HOLLOW CASING, A LINEALLY RECIPROCABLE POWER INPUT PLUNGER IN SAID CASING, A LINEALLY RECIPROCABLE POWER OUTPUT PISTON IN SAID CASING AND HYDRAULICALLY OPPOSED TO SAID POWER INPUT PLUNGER, SAID OUTPUT PISTON HAVING A PROJECTING ANNULUS EXTENDING TOWARD SAID INPUT PLUNGER, MEANS DIRECTLY CONNECTING SAID POWER INPUT PLUNGER TO SAID DRIVING MEMBER AND RECIPROCABLE THEREWITH THROUGH A DRIVING STROKE OF FIXED LENGTH, MEANS DIRECTLY CONNECTING SAID POWER OUTPUT PISTON TO SAID RECIPROCABLE DRIVEN MEMBER, SAID INPUT PLUNGER AND SAID OUTPUT PISTON EACH HAVING A PRESSURE FACE SPACED FROM THE OTHER AND OF DIFFERENT AREAS TO PRODUCE A DIFFERENT STROKE LENGTH, VELOC-
Claim 2
Dependent Claim
120 words
A HYDRAULIC POWER TRANSMISSION FOR CONNECTING A LINEALLY RECIPROCATING DRIVING MEMBER TO A RECIPROCABLE DRIVEN MEMBER, SAID TRANSMISSION COMPRISING: A HOLLOW CASING, A LINEALLY RECIPROCABLE POWER INPUT PLUNGER IN SAID CASING, A LINEALLY RECIPROCABLE POWER OUTPUT PISTON IN SAID CASING AND HYDRAULICALLY OPPOSED TO SAID POWER INPUT PLUNGER, SAID OUTPUT PISTON HAVING A PROJECTING ANNULUS EXTENDING TOWARD SAID INPUT PLUNGER, MEANS DIRECTLY CONNECTING SAID POWER INPUT PLUNGER TO SAID DRIVING MEMBER AND RECIPROCABLE THEREWITH THROUGH A DRIVING STROKE OF FIXED LENGTH, MEANS DIRECTLY CONNECTING SAID POWER OUTPUT PISTON TO SAID RECIPROCABLE DRIVEN MEMBER, SAID INPUT PLUNGER AND SAID OUTPUT PISTON EACH HAVING A PRESSURE FACE SPACED FROM THE OTHER AND OF DIFFERENT AREAS TO PRODUCE A DIFFERENT STROKE LENGTH, VELOC-
References Cited (Backward Citations)
US662515A
Cited
US1802790A
Cited
US1959822A
Cited
US2135011A
Cited
US2343962A
Cited
US2388925A
Cited
US2446862A
Cited
US2452526A
Cited
US2602434A
Cited
US2807215A
Cited
US2895492A
Cited
US2959132A
Cited
US3149469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |