Patent US3133673A successfully refreshed from Google Patents.
US3133673A
Expired / Lapsed
US
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Timer control for a washing machine ingredient dispenser
Assignee: Ametek Inc
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Filing: 1960-02-08
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Granted: 1964-05-19
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Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 Buss Benjamin Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:20
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A LAUNDRY MACHINE HAVING A MAIN TIMER MEANS FOR CAUSING THE MACHINE TO FOLLOW A PREDETERMINED WASH CYCLE, A CONTROLLER FOR AN INGREDIENT DISPENSING DEVICE FOR LAUNDRY WASHING MACHINES COMPRISING A PLURALITY OF NORMALLY OPEN SWITCHES, EACH IN A CIRCUIT WITH A PLURALITY OF SOLENOID ACTUATED VALVES FOR INJECTING INGREDIENTS INTO SAID MACHINE, A CAM SHAFT; SEPARATE CAMS ON SAID CAM SHAFT FOR OPERATING EACH OF SAID SWITCHES; A MOTOR FOR ROTATING SAID CAM SHAFT; AND MEANS FOR SEQUENTIALLY RUNNING SAID MOTOR ONLY DURING CERTAIN PREDETERMINED PORTIONS OF TIME IN THE WASHER CYCLE TO CAUSE THE INJECTION OF INGREDIENTS INTO SAID WASHER DURING SAID PORTION OF TIME, SAID MEANS INCLUDING A CAM ON SAID SHAFT TO STOP THE MOTOR AFTER A PREDETERMINED PERIOD OF OPERATION AND A SWITCH MEANS RESPONSIVE TO SAID MAIN TIMER MEANS AT A PREDETERMINED TIME IN THE WASHING CYCLE TO START SAID MOTOR.
Claim 2
Dependent Claim
148 words
IN A LAUNDRY MACHINE HAVING A MAIN TIMER MEANS FOR CAUSING THE MACHINE TO FOLLOW A PREDETERMINED WASH CYCLE, A CONTROLLER FOR AN INGREDIENT DISPENSING DEVICE FOR LAUNDRY WASHING MACHINES COMPRISING A PLURALITY OF NORMALLY OPEN SWITCHES, EACH IN A CIRCUIT WITH A PLURALITY OF SOLENOID ACTUATED VALVES FOR INJECTING INGREDIENTS INTO SAID MACHINE, A CAM SHAFT; SEPARATE CAMS ON SAID CAM SHAFT FOR OPERATING EACH OF SAID SWITCHES; A MOTOR FOR ROTATING SAID CAM SHAFT; AND MEANS FOR SEQUENTIALLY RUNNING SAID MOTOR ONLY DURING CERTAIN PREDETERMINED PORTIONS OF TIME IN THE WASHER CYCLE TO CAUSE THE INJECTION OF INGREDIENTS INTO SAID WASHER DURING SAID PORTION OF TIME, SAID MEANS INCLUDING A CAM ON SAID SHAFT TO STOP THE MOTOR AFTER A PREDETERMINED PERIOD OF OPERATION AND A SWITCH MEANS RESPONSIVE TO SAID MAIN TIMER MEANS AT A PREDETERMINED TIME IN THE WASHING CYCLE TO START SAID MOTOR.
References Cited (Backward Citations)
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US2273948A
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US2312950A
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US2427396A
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US2534014A
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US2986915A
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |