US3215864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch controlled circuit for energizing an electric load for no more than a single cycle
Assignee: Black and Decker Inc
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Filing: 1964-11-10
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Granted: 1965-11-02
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Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Richard H Doyle
- 👤 Le Roy N Hermann
- 👤 Joseph S Naber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H02M1/083; B; B25; B25C; B25C1/00; B25C1/06; H02K; H02K33/00; H02K33/02; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/145; H02M7/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A CONTROL CIRCUIT FOR A PORTABLE TOOL, WINDING MEANS FOR OPERATING SAID TOOL, AN ALTERNATING CURRENT POTENTIAL SOURCE, A UNIDIRECTIONAL CONTROLLED CONDUCTION MEANS HAVING A CONTROL ELECTRODE, CIRCUIT MEANS CONNECTING SAID WINDING MEANS AND SAID CONTROLLED CONDUCTION MEANS IN SERIES WITH SAID POTENTIAL SOURCE, SWITCH MEANS OPERABLE AT RANDOM TIMES RELATIVE TO THE CYCLES OF SAID ALTERNATING CURRENT POTENTIAL,AND CONTROL MEANS CONTROLLED BY SAID SWITCH MEANS FOR APPLYING A SIGNAL TO SAID CONTROL ELECTRODE TO PLACE SAID CONTROLLED CONDUCTION MEANS IN A CONDUCTIVE STATE DURING THE FIRST PROPERLY POLED HALF CYCLE OF SAID ALTERNATING CURRENT POTENTIAL OC-
Claim 2
Dependent Claim
98 words
IN A CONTROL CIRCUIT FOR A PORTABLE TOOL, WINDING MEANS FOR OPERATING SAID TOOL, AN ALTERNATING CURRENT POTENTIAL SOURCE, A UNIDIRECTIONAL CONTROLLED CONDUCTION MEANS HAVING A CONTROL ELECTRODE, CIRCUIT MEANS CONNECTING SAID WINDING MEANS AND SAID CONTROLLED CONDUCTION MEANS IN SERIES WITH SAID POTENTIAL SOURCE, SWITCH MEANS OPERABLE AT RANDOM TIMES RELATIVE TO THE CYCLES OF SAID ALTERNATING CURRENT POTENTIAL,AND CONTROL MEANS CONTROLLED BY SAID SWITCH MEANS FOR APPLYING A SIGNAL TO SAID CONTROL ELECTRODE TO PLACE SAID CONTROLLED CONDUCTION MEANS IN A CONDUCTIVE STATE DURING THE FIRST PROPERLY POLED HALF CYCLE OF SAID ALTERNATING CURRENT POTENTIAL OC-
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |