US3288436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lift mechanism
Assignee: Individual
•
Filing: 1965-09-28
•
Granted: 1966-11-29
•
Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Silva Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:50
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02; B60S9/10; B60S9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A MECHANISM FOR LIFTING A WHEELED VEHICLE HAVING A FRAME COMPRISING: A FIRST PAIR OF HYDRAULICALLY ACTUATED CYLINDERS, EACH OF SAID CYLINDERS OF SAID FIRST PAIR BEING UNIVERSALLY PIVOTALLY MOUNTED TO SAID FRAME AT POINTS HORIZONTALLY SPACED ON THE PERIPHERY THEREOF AND HAVING A PISTON ROD EXTENDING LONGITUDINALL THEREFROM; A SECOND PAIR OF HYDRAULICALLY ACTUATED CYLINDERS, EACH OF SAID CYLINDERS OF SAID SECOND PAIR BEING UNIVERSALLY PIVOTALLY MOUNTED TO SAID FRAME AT POINTS HORIZONTALLY SPACED ON THE PERIPHERY THEREOF OPPOSITE SAID FIRST PAIR AND HAVING A PISTON ROD EXTENDING LONGITUDINALLY THEREFROM; A HORIZONTALLY DISPOSED BEARING PLATE PIVOTALLY MOUNTED TO EACH OF SAID PISTON RODS OF SAID FIRST AND SAID SECOND PAIR OF HYDRAULICALLY ACTUATED CYLINDERS; HYDRAULIC MEANS MOUNTED TO SAID FRAME FOR SIMULTANEOUSLY FORCING SAID PISTON RODS LONGITUDINALLY FROM AND INTO SAID CYLINDERS OF SAID FIRST AND SAID SECOND PAIR OF CYLINDERS RESPECTIVELY, TO THEREBY LOWER AND RAISE SAID BEARING PLATES.
Claim 2
Dependent Claim
151 words
A MECHANISM FOR LIFTING A WHEELED VEHICLE HAVING A FRAME COMPRISING: A FIRST PAIR OF HYDRAULICALLY ACTUATED CYLINDERS, EACH OF SAID CYLINDERS OF SAID FIRST PAIR BEING UNIVERSALLY PIVOTALLY MOUNTED TO SAID FRAME AT POINTS HORIZONTALLY SPACED ON THE PERIPHERY THEREOF AND HAVING A PISTON ROD EXTENDING LONGITUDINALL THEREFROM; A SECOND PAIR OF HYDRAULICALLY ACTUATED CYLINDERS, EACH OF SAID CYLINDERS OF SAID SECOND PAIR BEING UNIVERSALLY PIVOTALLY MOUNTED TO SAID FRAME AT POINTS HORIZONTALLY SPACED ON THE PERIPHERY THEREOF OPPOSITE SAID FIRST PAIR AND HAVING A PISTON ROD EXTENDING LONGITUDINALLY THEREFROM; A HORIZONTALLY DISPOSED BEARING PLATE PIVOTALLY MOUNTED TO EACH OF SAID PISTON RODS OF SAID FIRST AND SAID SECOND PAIR OF HYDRAULICALLY ACTUATED CYLINDERS; HYDRAULIC MEANS MOUNTED TO SAID FRAME FOR SIMULTANEOUSLY FORCING SAID PISTON RODS LONGITUDINALLY FROM AND INTO SAID CYLINDERS OF SAID FIRST AND SAID SECOND PAIR OF CYLINDERS RESPECTIVELY, TO THEREBY LOWER AND RAISE SAID BEARING PLATES.
References Cited (Backward Citations)
US1924276A
Cited
US2115328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |