Patent US3230381A successfully refreshed from Google Patents.
US3230381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric power unit
Assignee: Individual
•
Filing: 1964-02-24
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Granted: 1966-01-18
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Sherman K Grinnell
- 👤 Robert W Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:07
CPC Classifications
H; H02; H02P; H02P9/00; H02P2101/00; H02P2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A POWER SUPPLY COMPRISING AN INDUCTION MOTOR ALTERNATOR; A PERMANENT MAGNET ALTERNATOR; AN EDDY CURRENT BRAKE; A PARTIAL ADMISSION TURBINE; A RIGID SHAFT MECHANICALLY LINKING SAID MOTOR ALTERNATOR, SAID MAGNETIC ALTERNATOR, SAID EDDY CURRENT BRAKE, AND SAID TURBINE; GENERATING MEANS FOR DRIVING SAID TURBINE; TRANSFORMER MEANS CONNECTED TO SAID MOTOR ALTERNATOR; N FILTER AND RECTIFIER MEANS CONNECTED TO SAID TRANSFORMER MEANS; CONTROL MEANS CONNECTED TO AT LEAST ONE OF SAID N FILTER AND RECTIFIER MEANS; SWITCHING MEANS HAVING A FIRST AND A SECOND POSITION FOR CONNECTING A SOURCE OF ALTERNATING POWER TO SAID TRANSFORMER AND SAID MOTOR ALTERNATOR WHEN IN SAID FIRST POSITION CAUSING SAID MOTOR ALTERNATOR TO FUNCTION AS A MOTOR, AND WHEN IN SAID SECOND POSITION FOR DISCONNECTING SAID SOURCE FROM SAID TRANSFORMER AND SAID MOTOR ALTERNATOR AND CONNECTING SAID CONTROL MEANS TO SAID EDDY CURRENT BRAKE; MEANS FOR APPLYING A SIGNAL TO SAID GENERATING MEANS FOR ENERGIZING SAID GENERATING MEANS AND FOR SWITCHING SAID SWITCHING MEANS FROM SAID FIRST TO SAID SECOND POSITION WHEREBY SAID MOTOR ALTERNATOR FUNCTIONS AS AN ALTERNATOR AND SAID CONTROL MEANS SENDS SIGNALS TO SAID BRAKE THEREBY CONTROLLING THE SPEED OF SAID TURBINE.
Claim 2
Dependent Claim
190 words
A POWER SUPPLY COMPRISING AN INDUCTION MOTOR ALTERNATOR; A PERMANENT MAGNET ALTERNATOR; AN EDDY CURRENT BRAKE; A PARTIAL ADMISSION TURBINE; A RIGID SHAFT MECHANICALLY LINKING SAID MOTOR ALTERNATOR, SAID MAGNETIC ALTERNATOR, SAID EDDY CURRENT BRAKE, AND SAID TURBINE; GENERATING MEANS FOR DRIVING SAID TURBINE; TRANSFORMER MEANS CONNECTED TO SAID MOTOR ALTERNATOR; N FILTER AND RECTIFIER MEANS CONNECTED TO SAID TRANSFORMER MEANS; CONTROL MEANS CONNECTED TO AT LEAST ONE OF SAID N FILTER AND RECTIFIER MEANS; SWITCHING MEANS HAVING A FIRST AND A SECOND POSITION FOR CONNECTING A SOURCE OF ALTERNATING POWER TO SAID TRANSFORMER AND SAID MOTOR ALTERNATOR WHEN IN SAID FIRST POSITION CAUSING SAID MOTOR ALTERNATOR TO FUNCTION AS A MOTOR, AND WHEN IN SAID SECOND POSITION FOR DISCONNECTING SAID SOURCE FROM SAID TRANSFORMER AND SAID MOTOR ALTERNATOR AND CONNECTING SAID CONTROL MEANS TO SAID EDDY CURRENT BRAKE; MEANS FOR APPLYING A SIGNAL TO SAID GENERATING MEANS FOR ENERGIZING SAID GENERATING MEANS AND FOR SWITCHING SAID SWITCHING MEANS FROM SAID FIRST TO SAID SECOND POSITION WHEREBY SAID MOTOR ALTERNATOR FUNCTIONS AS AN ALTERNATOR AND SAID CONTROL MEANS SENDS SIGNALS TO SAID BRAKE THEREBY CONTROLLING THE SPEED OF SAID TURBINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |