US3322925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade release and switch inactivating means for power operated knife
Assignee: Scovill Inc
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Filing: 1965-10-04
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Granted: 1967-05-30
•
Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Korshak Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:46
CPC Classifications
B; B26; B26B; B26B7/00; B26B7/005; H; H01; H01H; H01H9/00; H01H9/02; H01H9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A POWER OPERATED KNIFE, BLADE RELEASE AND SWITCH INACTIVATING MEANS COMPRISING (A) A HOUSING, (B) CARRIERS IN THE HOUSING IN WHICH BLADE TANGS ARE RELEASABLY MOUNTED, (C) A BLADE RELEASE BUTTON MEANS DEPRESSIBLY MOUNTED IN THE HOUSING FOR SEPARATING THE BLADE TANGS AND CARRIERS, (D) ELECTRIC SWITCH MECHANISM INCLUDING A PAIR OF SPACED APART CONTACT CARRYING SPRINGS AND A SWITCH BUTTON MEANS DEPRESSIBLY MOUNTED IN THE HOUSING FOR MOVING ONE OF SAID CONTACT CARRYING SPRINGS RELATIVELY TO THE OTHER INTO SWITCH CLOSING POSITION, AND (E) A PIVOTAL LEVER HAVING A FIRST ARM ENGAGED BY THE BLADE RELEASE BUTTON AND A SECOND ARM ENGAGING ONE OF SAID CONTACT CARRYING SPRINGS, ACTUATION OF SAID LEVER ARMS BY DEPRESSION OF THE RELEASE BUTTON CAUSING MOVEMENT OF SAID ARM-ENGAGED CONTACT CARRYING SPRING INTO OPEN SWITCH POSITION DURING DEPRESSION OF THE BLADE RELEASE BUTTON FOR INACTIVATING THE SWITCH REGARDLESS OF WHETHER THE OTHER CONTACT CARRYING SPRING IS IN SWITCH CLOSING POSITION.
Claim 2
Dependent Claim
157 words
IN A POWER OPERATED KNIFE, BLADE RELEASE AND SWITCH INACTIVATING MEANS COMPRISING (A) A HOUSING, (B) CARRIERS IN THE HOUSING IN WHICH BLADE TANGS ARE RELEASABLY MOUNTED, (C) A BLADE RELEASE BUTTON MEANS DEPRESSIBLY MOUNTED IN THE HOUSING FOR SEPARATING THE BLADE TANGS AND CARRIERS, (D) ELECTRIC SWITCH MECHANISM INCLUDING A PAIR OF SPACED APART CONTACT CARRYING SPRINGS AND A SWITCH BUTTON MEANS DEPRESSIBLY MOUNTED IN THE HOUSING FOR MOVING ONE OF SAID CONTACT CARRYING SPRINGS RELATIVELY TO THE OTHER INTO SWITCH CLOSING POSITION, AND (E) A PIVOTAL LEVER HAVING A FIRST ARM ENGAGED BY THE BLADE RELEASE BUTTON AND A SECOND ARM ENGAGING ONE OF SAID CONTACT CARRYING SPRINGS, ACTUATION OF SAID LEVER ARMS BY DEPRESSION OF THE RELEASE BUTTON CAUSING MOVEMENT OF SAID ARM-ENGAGED CONTACT CARRYING SPRING INTO OPEN SWITCH POSITION DURING DEPRESSION OF THE BLADE RELEASE BUTTON FOR INACTIVATING THE SWITCH REGARDLESS OF WHETHER THE OTHER CONTACT CARRYING SPRING IS IN SWITCH CLOSING POSITION.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |