US3221172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
No-break power supply
Assignee: Individual
•
Filing: 1962-08-29
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Granted: 1965-11-30
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Expires: 1982-08-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Rolison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A NO-BREAK POWER SUPPLY COMPRISING A FIRST PRIME MOVER, A SECOND PRIME MOVER, A DIFFERENTIAL, AN ELECTRIC GENERATOR, FIRST MEANS CONNECTING SAID DIFFERENTIAL TO DRIVE SAID GENERATOR, SECOND MEANS CONNECTING SAID FIRST PRIME MOVER TO DRIVE SAID DIFFERENTIAL, SAID FIRST PRIME MOVER BEING ADAPTED TO DRIVE SAID GENERATOR THROUGH AT LEAST SAID SECOND MEANS, SAID DIFFERENTIAL AND SAID FIRST MEANS, AND THIRD MEANS CONNECTING SAID SECOND PRIME MOVER TO DRIVE SAID DIFFERENTIAL, SAID SECOND PRIME MOVER BEING ADAPTED TO DRIVE SAID GENERATOR THROUGH AT LEAST SAID THIRD MEANS, SAID DIFFERENTIAL AND SAID FIRST MEANS, SAID FIRST PRIME MOVER BEING STATIONARY WHEN SAID SECOND PRIME MOVER IS UNDER POWER AND DRIVING SAID GENERATOR, SAID SECOND PRIME MOVER BEING STATIONARY WHEN SAID FIRST PRIME MOVER IS UNDER POWER AND DRIVING SAID GENERATOR.
Claim 2
Dependent Claim
130 words
A NO-BREAK POWER SUPPLY COMPRISING A FIRST PRIME MOVER, A SECOND PRIME MOVER, A DIFFERENTIAL, AN ELECTRIC GENERATOR, FIRST MEANS CONNECTING SAID DIFFERENTIAL TO DRIVE SAID GENERATOR, SECOND MEANS CONNECTING SAID FIRST PRIME MOVER TO DRIVE SAID DIFFERENTIAL, SAID FIRST PRIME MOVER BEING ADAPTED TO DRIVE SAID GENERATOR THROUGH AT LEAST SAID SECOND MEANS, SAID DIFFERENTIAL AND SAID FIRST MEANS, AND THIRD MEANS CONNECTING SAID SECOND PRIME MOVER TO DRIVE SAID DIFFERENTIAL, SAID SECOND PRIME MOVER BEING ADAPTED TO DRIVE SAID GENERATOR THROUGH AT LEAST SAID THIRD MEANS, SAID DIFFERENTIAL AND SAID FIRST MEANS, SAID FIRST PRIME MOVER BEING STATIONARY WHEN SAID SECOND PRIME MOVER IS UNDER POWER AND DRIVING SAID GENERATOR, SAID SECOND PRIME MOVER BEING STATIONARY WHEN SAID FIRST PRIME MOVER IS UNDER POWER AND DRIVING SAID GENERATOR.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |