Patent US3349669A successfully refreshed from Google Patents.
US3349669A
Expired / Lapsed
US
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Ram attitude control system
Assignee: Individual
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Filing: 1966-04-20
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Granted: 1967-10-31
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Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Rolland A Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:43
CPC Classifications
B; B23; B23D; B23D15/00; B23D15/12; B23D15/14; B30; B30B; B30B15/00; B30B15/16; B30B15/24; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8837; Y10T83/8854; Y10T83/8867
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A RAM ATTITUDE CONTROL SYSTEM FOR A HYDRAULICALLY POWERED MACHINE SUCH AS A PRESS BRAKE, SHEAR, OR THE LIKE, HAVING A RAM OF SUBSTANTIAL LENGTH, A HYDRAULIC MOTOR AT EACH END OF THE RAM, INCLUDIG A CYLINDER AND A DRIVE PISTON THEREIN, A PUMP FOR EACH OF SAID HYDRAULIC MOTORS AND TANK MEANS FOR SUPPLYING LIQUID TO SAID PUMPS, A DISCHARGE LINE FROM EACH OF SAID PUMPS IN FLOW CONNECTION TO ONE OF SAID HYDRAULIC MOTORS, AND MEANS RESPONSIVE TO DEVIATION OF SAID RAM FROM A DESIRED PREVAILING ATTITUDE, FOR CONTINUOUSLY AND NON-PROPORTIONALLY UNBALANCING THE HYDRAULIC FLOW TO SAID HYDRAULIC MOTORS, IN THE DIRECTION OF RESTORING SAID RAM TO SAID DESIRED PREVAILING ATTITUDE, TO EFFECT A LARGER CORRECTIVE UNBALANCE
Claim 2
Dependent Claim
119 words
A RAM ATTITUDE CONTROL SYSTEM FOR A HYDRAULICALLY POWERED MACHINE SUCH AS A PRESS BRAKE, SHEAR, OR THE LIKE, HAVING A RAM OF SUBSTANTIAL LENGTH, A HYDRAULIC MOTOR AT EACH END OF THE RAM, INCLUDIG A CYLINDER AND A DRIVE PISTON THEREIN, A PUMP FOR EACH OF SAID HYDRAULIC MOTORS AND TANK MEANS FOR SUPPLYING LIQUID TO SAID PUMPS, A DISCHARGE LINE FROM EACH OF SAID PUMPS IN FLOW CONNECTION TO ONE OF SAID HYDRAULIC MOTORS, AND MEANS RESPONSIVE TO DEVIATION OF SAID RAM FROM A DESIRED PREVAILING ATTITUDE, FOR CONTINUOUSLY AND NON-PROPORTIONALLY UNBALANCING THE HYDRAULIC FLOW TO SAID HYDRAULIC MOTORS, IN THE DIRECTION OF RESTORING SAID RAM TO SAID DESIRED PREVAILING ATTITUDE, TO EFFECT A LARGER CORRECTIVE UNBALANCE
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |