Patent US3074229A successfully refreshed from Google Patents.
US3074229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-gas reciprocating machine and system composed of a plurality of these machines
Assignee: US Philips Corp
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Filing: 1961-05-15
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Granted: 1963-01-22
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Bans Hendrik Bernardus
- 👤 Veldhuijzen Eduard Joh Jacobus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:08
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A HOT-GAS RECIPROCATING MACHINE COMPRISING A PAIR OF CYLINDERS, EACH HAVING A DISPLACER PISTON AND A POWER PISTON RECIPROCATING THEREIN, SAID CYLINDER AND PISTON DEFINING HOT AND COLD EXPANSIBLE CHAMBERS, A REGENERATOR INTERCONNECTING SAID HOT AND COLD EXPANSIBLE CHAMBERS, THE PISTONS OF SAID PAIR OF CYLINDERS BEING PROVIDED WITH INTERCOUPLED CRANKS WHICH ROTATE IN SYNCHRONISM WITH THE SAME ANGULAR SPEED BUT IN OPPOSITE DIRECTIONS, AND SAID CRANKS BEING PROVIDED WITH CRANK PINS, POWER PISTON DRIVING ROD ASSEMBLIES AND DISPLACER PISTON DRIVING ROD ASSEMBLIES, ONE OF SAID ASSEMBLIES BEING ON ONE SIDE OF A PLANE THROUGH THE CENTERS OF SAID CRANK PINS WHILE THE OTHER OF SAID ASSEMBLIES IS LOCATED ON THE OTHER SIDE THEREOF.
Claim 2
Dependent Claim
114 words
A HOT-GAS RECIPROCATING MACHINE COMPRISING A PAIR OF CYLINDERS, EACH HAVING A DISPLACER PISTON AND A POWER PISTON RECIPROCATING THEREIN, SAID CYLINDER AND PISTON DEFINING HOT AND COLD EXPANSIBLE CHAMBERS, A REGENERATOR INTERCONNECTING SAID HOT AND COLD EXPANSIBLE CHAMBERS, THE PISTONS OF SAID PAIR OF CYLINDERS BEING PROVIDED WITH INTERCOUPLED CRANKS WHICH ROTATE IN SYNCHRONISM WITH THE SAME ANGULAR SPEED BUT IN OPPOSITE DIRECTIONS, AND SAID CRANKS BEING PROVIDED WITH CRANK PINS, POWER PISTON DRIVING ROD ASSEMBLIES AND DISPLACER PISTON DRIVING ROD ASSEMBLIES, ONE OF SAID ASSEMBLIES BEING ON ONE SIDE OF A PLANE THROUGH THE CENTERS OF SAID CRANK PINS WHILE THE OTHER OF SAID ASSEMBLIES IS LOCATED ON THE OTHER SIDE THEREOF.
References Cited (Backward Citations)
US2558481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |