US3293889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for continually varying tumble speed
Assignee: Whirlpool Corp
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Filing: 1964-08-24
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Granted: 1966-12-27
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Clifton A Cobb
- 👤 Glen R Severance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:51
CPC Classifications
D; D06; D06F; D06F21/00; D06F21/02; D06F34/00; D06F34/08; D06F2101/00; D06F2101/20; D06F2105/00; D06F2105/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A LAUNDRY MACHINE, A ROTATABLE RECEPTACLE FOR TUMBLING CLOTHES, A MOTOR FOR DRIVING SAID RECEPTACLE HAVING A CONTROL WINDING CIRCUIT, PLURAL RESISTORS FOR INTRODUCING SELECTED VALUES OF RESISTANCE INTO SAID CONTROL WINDING CIRCUIT, SEQUENTIAL CONROL MEANS INCLUDING SWITCH MEANS REGULATING THE SELECTION OF SAID RESISTORS AND AUTOMATICALLY OPERATING THE MACHINE THROUGH A PROGRAMMED SEQUENCE OF WASHING, RINSING AND DRYING PERIODS AND CONTROLLING THE OPERATION OF SAID MOTOR AT CORRESPONDINGLY DIFFERENT SPEEDS DURING DIFFERENT CYCLES IN SAID SEQUENCE, CONTINUOUSLY ADJUSTABLE RESISTANCE MEANS IN CIRCUIT WITH ONE OF SAID PLURAL RESISTANCES AND INCLUDING A MOTOR DRIVEN MOVABLE CONTROL MEMBER TO CONTINUALLY VARY
Claim 2
Dependent Claim
101 words
IN A LAUNDRY MACHINE, A ROTATABLE RECEPTACLE FOR TUMBLING CLOTHES, A MOTOR FOR DRIVING SAID RECEPTACLE HAVING A CONTROL WINDING CIRCUIT, PLURAL RESISTORS FOR INTRODUCING SELECTED VALUES OF RESISTANCE INTO SAID CONTROL WINDING CIRCUIT, SEQUENTIAL CONROL MEANS INCLUDING SWITCH MEANS REGULATING THE SELECTION OF SAID RESISTORS AND AUTOMATICALLY OPERATING THE MACHINE THROUGH A PROGRAMMED SEQUENCE OF WASHING, RINSING AND DRYING PERIODS AND CONTROLLING THE OPERATION OF SAID MOTOR AT CORRESPONDINGLY DIFFERENT SPEEDS DURING DIFFERENT CYCLES IN SAID SEQUENCE, CONTINUOUSLY ADJUSTABLE RESISTANCE MEANS IN CIRCUIT WITH ONE OF SAID PLURAL RESISTANCES AND INCLUDING A MOTOR DRIVEN MOVABLE CONTROL MEMBER TO CONTINUALLY VARY
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |