US3756751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic power from a prime mover
Assignee: Coventry Climax Engines Ltd
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Filing: 1971-10-01
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Granted: 1973-09-04
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Expires: 1991-10-01
Abstract
Abstract Hydraulic power for a vehicle having an internal combustion engine with a flywheel is generated by a hydraulic pump driven from the flywheel. The arrangement is particularly applicable to fork lift trucks.
Inventors
- 👤 J Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:57
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2128
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
61 words
An internal combustion engine which includes: a. a hydraulic pump; b. a flywheel drivably connected to the engine; c. a clutch interposed between the said flywheel and a clutch output shaft to drivably connect the former to the latter; d. transmission means between the flywheel and the said hydraulic pump to drive the latter whether or not the clutch is engaged.
Claim 2
Dependent Claim
61 words
An internal combustion engine which includes: a. a hydraulic pump; b. a flywheel drivably connected to the engine; c. a clutch interposed between the said flywheel and a clutch output shaft to drivably connect the former to the latter; d. transmission means between the flywheel and the said hydraulic pump to drive the latter whether or not the clutch is engaged.
Claim 3
Dependent Claim
92 words
An internal combustion engine as claimed in claim 1 in which the said transmission means (d) comprises: a. a cover member secured to the flywheel; b. an annular gear concentric with the said output shaft; c. drive means connecting said cover member to the said annular gear; d. a transfer gear drivably mounted on an input shaft of said hydraulic pump, said transfer gear meshing with said annular gear so that the said flywheel drives the said pump through the said cover member, driving means, annular gear, transfer gear and input shaft.
Claim 4
Dependent Claim
13 words
A lift truck having an internal combustion engine as claimed in claim 1.
Claim 5
Dependent Claim
13 words
A lift truck having an internal combustion engine as claimed in claim 2.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |