Patent US3212938A successfully refreshed from Google Patents.
US3212938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch for cordless electrical device
Assignee: Black and Decker Corp
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Filing: 1962-10-17
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Granted: 1965-10-19
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Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 Melvin H Neuhardt
- 👤 Harry L Beam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:46
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/02; H01H9/06; H01H27/00; H01H27/06; H01H27/08; H01H9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN AN ELECTRICAL DEVICE WHICH IS PROVIDED WITH A REMOVABLE POWER PACK HAVING A PAIR OF TERMINALS, SAFETY SWITCH MEANS HAVING AN "ON" POSITION AND AN "OFF" POSITION AND COMPRISING: (A) A HOUSING; (B) AN INSULATED MEMBER JOURNALED WITHIN SAID HOUSING FOR LIMITED ROTATION ABOUT ITS AXIS; (C) SAID MEMBER HAVING AN INITIAL POSITION CORRESPONDING TO THE "OFF" POSITION OF THE SWITCH, AND SAID MEMBER FURTHER HAVING AN ALTERNATE POSITION CORRESPONDING TO THE "ON" POSITION OF THE SWITCH; (D) A REMOVABLE KEY WITHIN SAID HOUSING TO ENGAGE SAID MEMBER AND MOVE SAID MEMBER FROM ITS INITIAL POSITION TO ITS ALTERNATE POSITION; (E) MEANS TO PREVENT SAID KEY FROM BEING REMOVED FROM SAID HOUSING IN THE ALTERNATE POSITION OF SAID MEMBER; (F) ELECTRICAL CONTACT MEANS WITHIN SAID HOUSING, MOVABLE IN RESPONSE TO THE MOVEMENT OF SAID MEMBER, AND ENGAGING THE RESPECTIVE TERMINALS OF THE POWER PACK IN THE ALTERNATE POSITION OF SAID MEMBER; AND (G) MEANS TO PREVENT THE POWER PACK FROM BEING REMOVED FROM SAID HOUSING IN THE ALTERNATE POSITION OF SAID MEMBER.
Claim 2
Dependent Claim
173 words
IN AN ELECTRICAL DEVICE WHICH IS PROVIDED WITH A REMOVABLE POWER PACK HAVING A PAIR OF TERMINALS, SAFETY SWITCH MEANS HAVING AN "ON" POSITION AND AN "OFF" POSITION AND COMPRISING: (A) A HOUSING; (B) AN INSULATED MEMBER JOURNALED WITHIN SAID HOUSING FOR LIMITED ROTATION ABOUT ITS AXIS; (C) SAID MEMBER HAVING AN INITIAL POSITION CORRESPONDING TO THE "OFF" POSITION OF THE SWITCH, AND SAID MEMBER FURTHER HAVING AN ALTERNATE POSITION CORRESPONDING TO THE "ON" POSITION OF THE SWITCH; (D) A REMOVABLE KEY WITHIN SAID HOUSING TO ENGAGE SAID MEMBER AND MOVE SAID MEMBER FROM ITS INITIAL POSITION TO ITS ALTERNATE POSITION; (E) MEANS TO PREVENT SAID KEY FROM BEING REMOVED FROM SAID HOUSING IN THE ALTERNATE POSITION OF SAID MEMBER; (F) ELECTRICAL CONTACT MEANS WITHIN SAID HOUSING, MOVABLE IN RESPONSE TO THE MOVEMENT OF SAID MEMBER, AND ENGAGING THE RESPECTIVE TERMINALS OF THE POWER PACK IN THE ALTERNATE POSITION OF SAID MEMBER; AND (G) MEANS TO PREVENT THE POWER PACK FROM BEING REMOVED FROM SAID HOUSING IN THE ALTERNATE POSITION OF SAID MEMBER.
References Cited (Backward Citations)
US1884341A
Cited
US2400351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |