Patent US4104441A successfully refreshed from Google Patents.
Patent US3132227A successfully refreshed from Google Patents.
US3132227A
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Trigger switch with lock for tool or appliance
Assignee: Black and Decker Corp
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Filing: 1961-08-28
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Granted: 1964-05-05
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Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/001; H; H01; H01H; H01H9/00; H01H9/02; H01H9/06; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN AN ELECTRICAL DEVICE, THE COMBINATION OF A TRIGGER SWITCH HAVING AN "ON" POSITION AND AN "OFF" POSITION AND MEANS TO LOCK THE SWITCH IN ITS "OFF" POSITION, COMPRISING A HOUSING, A TRIGGER MOUNTED IN SAID HOUSING AND MOVABLE WITH RESPECT TO SAID HOUSING, RESILIENT MEANS BIASING SAID TRIGGER TO ITS NORMAL POSITION, ELECTRICAL CONTACT MEANS CLOSED UPON THE MOVEMENT OF SAID TRIGGER TO ENERGIZE THE DEVICE, A LOCKING MEMBER KEYED TO SAID TRIGGER AND MOVABLE TRANSVERSELY OF SAID TRIGGER, WHEREBY SAID TRIGGER AND SAID LOCKING MEMBER HAVE A CONJOINT MOVEMENT, AND MEANS TO KEY SAID LOCKING MEMBER TO SAID HOUSING, IN A SELECTED POSITION OF SAID LOCKING MEMBER, TO PREVENT THE CONJOINT MOVEMENT OF SAID LOCKING MEMBER AND SAID TRIGGER AND TO THEREBY PREVENT THE CLOSING OF SAID ELECTRICAL CONTACT MEANS.
Claim 2
Dependent Claim
132 words
IN AN ELECTRICAL DEVICE, THE COMBINATION OF A TRIGGER SWITCH HAVING AN "ON" POSITION AND AN "OFF" POSITION AND MEANS TO LOCK THE SWITCH IN ITS "OFF" POSITION, COMPRISING A HOUSING, A TRIGGER MOUNTED IN SAID HOUSING AND MOVABLE WITH RESPECT TO SAID HOUSING, RESILIENT MEANS BIASING SAID TRIGGER TO ITS NORMAL POSITION, ELECTRICAL CONTACT MEANS CLOSED UPON THE MOVEMENT OF SAID TRIGGER TO ENERGIZE THE DEVICE, A LOCKING MEMBER KEYED TO SAID TRIGGER AND MOVABLE TRANSVERSELY OF SAID TRIGGER, WHEREBY SAID TRIGGER AND SAID LOCKING MEMBER HAVE A CONJOINT MOVEMENT, AND MEANS TO KEY SAID LOCKING MEMBER TO SAID HOUSING, IN A SELECTED POSITION OF SAID LOCKING MEMBER, TO PREVENT THE CONJOINT MOVEMENT OF SAID LOCKING MEMBER AND SAID TRIGGER AND TO THEREBY PREVENT THE CLOSING OF SAID ELECTRICAL CONTACT MEANS.
References Cited (Backward Citations)
US2200322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |