Patent US3171987A successfully refreshed from Google Patents.
US3171987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse device for the program control of washing machines
Assignee: Individual
•
Filing: 1960-03-16
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Granted: 1965-03-02
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Expires: 1980-03-16
Abstract
No abstract record available.
Inventors
- 👤 Holzer Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:19
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; D; D06; D06F; D06F34/00; D06F34/06; H01H43/12; H01H43/125; D06F34/08; Y; Y10; Y10T; Y10T74/00; Y10T74/11; Y10T74/114; Y10T74/115
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
A PROGRAM CONTROL SYSTEM COMPRISING A TIMER DEVICE; AN ELECTRIC MOTOR AND CONTROL MEANS FOR DRIVINGLY CONNECTING SAID TIMER DEVICE TO SAID MOTOR; MEANS FOR RETURNING SAID TIMER DEVICE TO ITS STARTING POSITION WHEN THE CONNECTION BETWEEN SAID MOTOR AND SAID TIMER DEVICE IS INTERRUPTED; AN ELECTRICAL SELF-INTERRUPTING STEP SWITCHING DEVICE HAVING A CAM STARTED IN RESPONSE TO SAID TIMER DEVICE AND RESPECTIVELY COMPLETING ONE STEP BEFORE BEING INTERRUPTED; AND MEANS OPERATIVELY CONNECTED BETWEEN SAID CONTROL MEANS AND SAID STEP SWITCHING DEVICE FOR INTERRUPTING THE CONNECTION BETWEEN SAID TIMER DEVICE AND SAID MOTOR AFTER SAID STEP SWITCHING DEVICE HAS STARTED, SAID STEP INTERRUPTING MEANS COMPRISING A LEVER HAVING A RELEASABLE DRIVING GEAR AT ONE END AND A FEELER AT THE OTHER END IN CONTACT WITH SAID CAM OF SAID SWITCHING DEVICE.
References Cited (Backward Citations)
US2599234A
Cited
US3046421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |