Patent US3242345A successfully refreshed from Google Patents.
US3242345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight electrical generator set employing a mercury power cycle and nitrogen cover gas
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1961-11-09
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Granted: 1966-03-22
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Expires: 1981-11-09
Abstract
No abstract record available.
Inventors
- 👤 Kimura Arata
- 👤 Richard P Nemetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:09
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A MANUALLY PORTABLE POWER PLANT ASSEMBLY COMPRISING: A LIGHTWEIGHT TUBULAR SUPPORT, SUPPORTING A BOILER UNIT WHICH IS USED TO VAPORIZED AN OPERATING FLUID, A TURBINE RECEIVING THE VAPORIZED FLUID FROM THE BOILER UNIT, AN ALTERNATOR OPERATIVELY CONNECTED TO THE TURBINE DRIVEN BY THE VAPOR FROM THE BOILER, A CONDENSER CONDENSING THE VAPOR EXITED FROM THE TURBINE AND FEEDING THE CONDENSED FLUID TO SAID BOILER TO FORM A CLOSED CYCLE OF OPERATING FLUID, AND DUCT MEANS DIRECTING COOLING AIR FROM SAID CONDENSING UNIT TO SAID BOILER UNIT TO LOWER THE EXHAUST TEMPERATURE FROM SAID BOILER UNIT, WITH A PORTION OF SAID COOLING AIR BEING DIRECTED BY SAID DUCT MEANS AND UTILIZED AS PREHEATED AIR AT SAID BOILER UNIT.
Claim 2
Dependent Claim
117 words
A MANUALLY PORTABLE POWER PLANT ASSEMBLY COMPRISING: A LIGHTWEIGHT TUBULAR SUPPORT, SUPPORTING A BOILER UNIT WHICH IS USED TO VAPORIZED AN OPERATING FLUID, A TURBINE RECEIVING THE VAPORIZED FLUID FROM THE BOILER UNIT, AN ALTERNATOR OPERATIVELY CONNECTED TO THE TURBINE DRIVEN BY THE VAPOR FROM THE BOILER, A CONDENSER CONDENSING THE VAPOR EXITED FROM THE TURBINE AND FEEDING THE CONDENSED FLUID TO SAID BOILER TO FORM A CLOSED CYCLE OF OPERATING FLUID, AND DUCT MEANS DIRECTING COOLING AIR FROM SAID CONDENSING UNIT TO SAID BOILER UNIT TO LOWER THE EXHAUST TEMPERATURE FROM SAID BOILER UNIT, WITH A PORTION OF SAID COOLING AIR BEING DIRECTED BY SAID DUCT MEANS AND UTILIZED AS PREHEATED AIR AT SAID BOILER UNIT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |