US3274899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating fluid motor
Assignee: Individual
•
Filing: 1964-12-31
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Granted: 1966-09-27
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Howard W Stump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:35
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/08; F03C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
APPARATUS FOR TRANSLATING FLUID PRESSURE INTO RECIPROCATING MOTION COMPRISING: (A) A PRESSURE BOX DIVIDED INOT TWO SEPARATE PRESSURE CHAMBER BY A FLEXIBLE DIAPHRAGM, (1) EACH SEPARATE PRESSURE CHAMBER HAVING SEALABLE OUTLET MEANS, (2) SAID OUTLET MEANS BEING SEALABLE BY SAID FLEXIBLE DIAPHRAGM WHEN IN CONTACT THEREWITH, (3) EACH SEPARATE PRESSURE CHAMBER ADAPTED TO COMMUNICATE THROUGH MAINFOLD MEANS WITH A SOURCE OF FLUID PRESSURE, (B) EXHAUST MEANS COMPRISING A PAIR OF ALTERNATELY CLOSING EXHAUST VALVES COMMUNICATING WITH AN EXHAUST VENT, (C) A CLOSED OPERATING CYLINDER HAVING FORWARD AND REAR PORTIONS, (1) A PISTON DISPOSED IN SAID CYLINDER, (2) A FORWARD FLUID PORT IN SAID CYLINDER FORWARD OF SAID PISTON, (3) A REAR FLUID PORT IN SAID CYLINDER REARWARD OF SAID PISTON, (D) PRESSURE MANIFOLD MEANS CONNECTING ONE PRESSURE CHAMBER OUTLET MEANS WITH ONE EXHAUST VALVE AND SAID FORWARD FLUID PORT, (E) PRESSURE MANIFOLD MEANS CONNECTING THE OTHER PRESSURE CHAMBER OUTLET MEANS WITH THE OTHER EXHAUST VALVE AND SAID REAR FLUID PORT, AND (F) ACTUATING MEANS OPERATIVELY COMMUNICATING BETWEEN SAID PISTON AND SAID EXHAUST MEANS WHEREBY SAID EXHAUST VALVES ALTERNATELY CLOSE CORRESPONDING TO THE RELATIVE POSITION OF SAID PISTON IN SAID CYLINDER
Claim 2
Dependent Claim
190 words
APPARATUS FOR TRANSLATING FLUID PRESSURE INTO RECIPROCATING MOTION COMPRISING: (A) A PRESSURE BOX DIVIDED INOT TWO SEPARATE PRESSURE CHAMBER BY A FLEXIBLE DIAPHRAGM, (1) EACH SEPARATE PRESSURE CHAMBER HAVING SEALABLE OUTLET MEANS, (2) SAID OUTLET MEANS BEING SEALABLE BY SAID FLEXIBLE DIAPHRAGM WHEN IN CONTACT THEREWITH, (3) EACH SEPARATE PRESSURE CHAMBER ADAPTED TO COMMUNICATE THROUGH MAINFOLD MEANS WITH A SOURCE OF FLUID PRESSURE, (B) EXHAUST MEANS COMPRISING A PAIR OF ALTERNATELY CLOSING EXHAUST VALVES COMMUNICATING WITH AN EXHAUST VENT, (C) A CLOSED OPERATING CYLINDER HAVING FORWARD AND REAR PORTIONS, (1) A PISTON DISPOSED IN SAID CYLINDER, (2) A FORWARD FLUID PORT IN SAID CYLINDER FORWARD OF SAID PISTON, (3) A REAR FLUID PORT IN SAID CYLINDER REARWARD OF SAID PISTON, (D) PRESSURE MANIFOLD MEANS CONNECTING ONE PRESSURE CHAMBER OUTLET MEANS WITH ONE EXHAUST VALVE AND SAID FORWARD FLUID PORT, (E) PRESSURE MANIFOLD MEANS CONNECTING THE OTHER PRESSURE CHAMBER OUTLET MEANS WITH THE OTHER EXHAUST VALVE AND SAID REAR FLUID PORT, AND (F) ACTUATING MEANS OPERATIVELY COMMUNICATING BETWEEN SAID PISTON AND SAID EXHAUST MEANS WHEREBY SAID EXHAUST VALVES ALTERNATELY CLOSE CORRESPONDING TO THE RELATIVE POSITION OF SAID PISTON IN SAID CYLINDER
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |