Patent US3176466A successfully refreshed from Google Patents.
US3176466A
Expired / Lapsed
US
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Hydraulic press
Assignee: American Brake Shoe Co
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Filing: 1961-12-01
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Granted: 1965-04-06
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Expires: 1981-12-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Pinsenschaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:49
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/26; B30B15/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A HYDRAULIC PRESSURE COMPRISING A RAM, MEANS FOR OPERATING SAID RAM IN CONTINUOUS RECIPROCATING MOVEMENT, A HIGH PRESSURE, LOW VOLUME PUMP AND A HIGH VOLUME, LOW PRESSURE PUMP, A CHANGEOVER VALVE HAVING A PAIR OF INLETS AND AN OUTLET, SAID VALVE BEING SELECTIVELY ACTUATABLE TO ALTERNATELY CONNECT SAID INLETS TO SAID OUTLET, FLUID PASSAGEWAYS CONNECTING ONE OF SAID INLETS TO SAID HIGH PRESSURE PUMP, THE OTHER OF SAID INLETS TO SAID HIGH VOLUME PUMP AND SAID OUTLET TO SAID RAM OPERATING MEANS, A CAM, MEANS
Claim 2
Dependent Claim
85 words
A HYDRAULIC PRESSURE COMPRISING A RAM, MEANS FOR OPERATING SAID RAM IN CONTINUOUS RECIPROCATING MOVEMENT, A HIGH PRESSURE, LOW VOLUME PUMP AND A HIGH VOLUME, LOW PRESSURE PUMP, A CHANGEOVER VALVE HAVING A PAIR OF INLETS AND AN OUTLET, SAID VALVE BEING SELECTIVELY ACTUATABLE TO ALTERNATELY CONNECT SAID INLETS TO SAID OUTLET, FLUID PASSAGEWAYS CONNECTING ONE OF SAID INLETS TO SAID HIGH PRESSURE PUMP, THE OTHER OF SAID INLETS TO SAID HIGH VOLUME PUMP AND SAID OUTLET TO SAID RAM OPERATING MEANS, A CAM, MEANS
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |