Patent US3130549A successfully refreshed from Google Patents.
US3130549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic positioning system
Assignee: International Business Machines Corp
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Filing: 1960-09-14
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Granted: 1964-04-28
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Expires: 1980-09-14
Abstract
No abstract record available.
Inventors
- 👤 Marshall E Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:35
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A HYDRAULIC POSITIONING SYSTEM FOR POSITIONING A LOAD DEVICE AT ANY ONE OF A PLURALITY OF DISCRETE POSITIONS COMPRISING A FIRST CYLINDER WHICH IS STATIONARY RELATIVE TO SAID LOAD DEVICE, A SECOND CYLINDER DISPOSED IN AND MOVABLE RELATIVE TO SAID FIRST CYLINDER, AN OUTPUT SHAFT FORMING A PISTON IN SAID SECOND CYLINDER AND EXTENDING THEREFROM FOR CONNECTION TO SAID LOAD DEVICE, A VOLUMETRIC ADDER HAVING A PLURALITY OF CYLINDER ELEMENTS HYDRAULICALLY COMMUNICATING WITH THE INTERIOR OF SAID SECOND CYLINDER FOR VARYING THE POSITION OF SAID SHAFT RELATIVE TO SAID SECOND CYLINDER, SAID VOLUMETRIC ADDER ELEMENTS PROVIDING INCREMENTS OF MOVEMENT OF SAID SHAFT AND LOAD DEVICE WHICH ARE MULTIPLES OF THE SMALLEST INCREMENT REPRESENTED BY ADJACENT ONES OF SAID POSITIONS, CYLINDER ADDER MEANS MECHANICALLY CONNECTED TO SAID SECOND CYLINDER FOR MOVING
Claim 2
Dependent Claim
130 words
A HYDRAULIC POSITIONING SYSTEM FOR POSITIONING A LOAD DEVICE AT ANY ONE OF A PLURALITY OF DISCRETE POSITIONS COMPRISING A FIRST CYLINDER WHICH IS STATIONARY RELATIVE TO SAID LOAD DEVICE, A SECOND CYLINDER DISPOSED IN AND MOVABLE RELATIVE TO SAID FIRST CYLINDER, AN OUTPUT SHAFT FORMING A PISTON IN SAID SECOND CYLINDER AND EXTENDING THEREFROM FOR CONNECTION TO SAID LOAD DEVICE, A VOLUMETRIC ADDER HAVING A PLURALITY OF CYLINDER ELEMENTS HYDRAULICALLY COMMUNICATING WITH THE INTERIOR OF SAID SECOND CYLINDER FOR VARYING THE POSITION OF SAID SHAFT RELATIVE TO SAID SECOND CYLINDER, SAID VOLUMETRIC ADDER ELEMENTS PROVIDING INCREMENTS OF MOVEMENT OF SAID SHAFT AND LOAD DEVICE WHICH ARE MULTIPLES OF THE SMALLEST INCREMENT REPRESENTED BY ADJACENT ONES OF SAID POSITIONS, CYLINDER ADDER MEANS MECHANICALLY CONNECTED TO SAID SECOND CYLINDER FOR MOVING
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |