Patent US3283547A successfully refreshed from Google Patents.
US3283547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control for a laundry machine
Assignee: Whirlpool Corp
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Filing: 1964-03-02
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Granted: 1966-11-08
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Glen R Severance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:50
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/30; D06F37/304; D06F33/00; D06F33/30; D06F33/48; D06F34/00; D06F34/08; H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/292; H02P7/293; D06F2105/00; D06F2105/46; D06F2105/48; D06F37/20; D06F37/22; D06F37/225; Y; Y02; Y02B; Y02B40/00; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A LAUNDRY MACHINE COMPRISING: A MACHINE HOUSING AND A CLOTHES RECEPTACLE MOUNTED FOR ROTATION WITHIN THE HOUSING, A D.-C. MOTOR DIRECTLY CONNECTED FOR ROTATING SAID RECEPTACLE AND FOR HAVING A CONSTANT SPEED RATIO THEREWITH, A SATURABLE CORE REACTOR HAVING A CONTROL WINDING AND AN OUTPUT WINDING, AN OUTPUT CIRCUIT INCLUDING SAID OUTPUT WINDING HAVING A FIRST TERMINAL FOR BEING CONNECTED TO A POWER SOURCE AND A SECOND TERMINAL CONNECTED TO SAID D.-C. MOTOR, A TIMING MOTOR AND A PLURALITY OF RESISTORS EACH HAVING A SERIES CONNECTED SWITCH OPERATED BY SAID TIMING MOTOR, AN INPUT CIRCUIT INCLUDING SAID CONTROL WINDING HAVING A FIRST TERMINAL FOR BEING CONNECTED TO A POWER SOURCE AND A SECOND TERMINAL CONNECTED TO ONE TERMINAL OF EACH OF SAID RESISTORS, EACH OF SAID SERIES CONNECTED SWITCHES BEING CLOSED SEQUENTIALLY BY SAID TIMING MOTOR TO COMPLETE SAID INPUT CIRCUIT WITH SAID ASSOCIATED RESITOR, AND SAID TIMING MOTOR OPERATING SAID SWITCHES TO INCORPORATE ONE OF SAID RESISTORS TO ACCOMMODATE THE DIFFERING REQUIREMENTS OF WASHING AND SPINNING CYCLES OF THE CLOTHES RECEPTACLE.
Claim 2
Dependent Claim
172 words
A LAUNDRY MACHINE COMPRISING: A MACHINE HOUSING AND A CLOTHES RECEPTACLE MOUNTED FOR ROTATION WITHIN THE HOUSING, A D.-C. MOTOR DIRECTLY CONNECTED FOR ROTATING SAID RECEPTACLE AND FOR HAVING A CONSTANT SPEED RATIO THEREWITH, A SATURABLE CORE REACTOR HAVING A CONTROL WINDING AND AN OUTPUT WINDING, AN OUTPUT CIRCUIT INCLUDING SAID OUTPUT WINDING HAVING A FIRST TERMINAL FOR BEING CONNECTED TO A POWER SOURCE AND A SECOND TERMINAL CONNECTED TO SAID D.-C. MOTOR, A TIMING MOTOR AND A PLURALITY OF RESISTORS EACH HAVING A SERIES CONNECTED SWITCH OPERATED BY SAID TIMING MOTOR, AN INPUT CIRCUIT INCLUDING SAID CONTROL WINDING HAVING A FIRST TERMINAL FOR BEING CONNECTED TO A POWER SOURCE AND A SECOND TERMINAL CONNECTED TO ONE TERMINAL OF EACH OF SAID RESISTORS, EACH OF SAID SERIES CONNECTED SWITCHES BEING CLOSED SEQUENTIALLY BY SAID TIMING MOTOR TO COMPLETE SAID INPUT CIRCUIT WITH SAID ASSOCIATED RESITOR, AND SAID TIMING MOTOR OPERATING SAID SWITCHES TO INCORPORATE ONE OF SAID RESISTORS TO ACCOMMODATE THE DIFFERING REQUIREMENTS OF WASHING AND SPINNING CYCLES OF THE CLOTHES RECEPTACLE.
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |