Patent US3075514A successfully refreshed from Google Patents.
US3075514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caloric energy developing device
Assignee: Individual
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Filing: 1961-03-22
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Granted: 1963-01-29
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Expires: 1981-03-22
Abstract
No abstract record available.
Inventors
- 👤 Paugh Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:21
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B27/00; F04B27/005; F04B39/0005; F04B39/06; F04B39/12; F24; F24V; F24V40/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A CALORIC ENERGY DEVELOPING DEVICE, A PISTONTYPE AIR PUMP HAVING A CYLINDER AND A PISTON STRUCTURE WITH AN AXIALLY PASSAGED PISTON AND AN AXIALLY CHAMBERED PISTON ROD, SAID PISTON ROD HAVING ITS CHAMBER OPENLY COMMUNICATING THROUGH SAID PASSAGED PISTON WITH THE CYLINDER AND CLOSED AT THE OPPOSITE END THEREOF, A STATIONARY TUBULAR MEMBER SECURED TO SAID CYLINDER IN AXIAL ALIGNMENT THEREWITH, SAID STATIONARY TUBULAR MEMBER BEING EXTENDED THROUGH SAID AXIALLY PASSAGED PISTON INTO THE CHAMBER OF THE PISTON ROD AND FORMING THEREWITH A PLUNGER-TYPE AIR PUMP, AND A METERING ROD SECURED TO THE PISTON ROD IN AXIAL ALIGNMENT THEREWITH AND EXTENDED THROUGH THE PISTON ROD CHAMBER INTO AND THROUGH THE STATIONARY TUBULAR MEMBER, SAID METERING ROD RESTRICTING THE FLOW OF AIR FROM THE PISTON-TYPE AIR PUMP AND THE PLUNGER-TYPE AIR PUMP TO AND THROUGH THE STATIONARY TUBULAR MEMBER.
Claim 2
Dependent Claim
139 words
IN A CALORIC ENERGY DEVELOPING DEVICE, A PISTONTYPE AIR PUMP HAVING A CYLINDER AND A PISTON STRUCTURE WITH AN AXIALLY PASSAGED PISTON AND AN AXIALLY CHAMBERED PISTON ROD, SAID PISTON ROD HAVING ITS CHAMBER OPENLY COMMUNICATING THROUGH SAID PASSAGED PISTON WITH THE CYLINDER AND CLOSED AT THE OPPOSITE END THEREOF, A STATIONARY TUBULAR MEMBER SECURED TO SAID CYLINDER IN AXIAL ALIGNMENT THEREWITH, SAID STATIONARY TUBULAR MEMBER BEING EXTENDED THROUGH SAID AXIALLY PASSAGED PISTON INTO THE CHAMBER OF THE PISTON ROD AND FORMING THEREWITH A PLUNGER-TYPE AIR PUMP, AND A METERING ROD SECURED TO THE PISTON ROD IN AXIAL ALIGNMENT THEREWITH AND EXTENDED THROUGH THE PISTON ROD CHAMBER INTO AND THROUGH THE STATIONARY TUBULAR MEMBER, SAID METERING ROD RESTRICTING THE FLOW OF AIR FROM THE PISTON-TYPE AIR PUMP AND THE PLUNGER-TYPE AIR PUMP TO AND THROUGH THE STATIONARY TUBULAR MEMBER.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |