US3246546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power tool safety assembly
Assignee: Individual
•
Filing: 1963-06-27
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Granted: 1966-04-19
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Lemuel A Madden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:31
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0078; B23Q11/0092; H; H01; H01H; H01H3/00; H01H3/02; H01H3/16; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/165; Y10T83/00; Y10T83/626
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
AN ELECTRICALLY POWERED TOOL FOR PERFORMING A CUTTING OPERATION ON A WORKPIECE COMPRISING: (A) A CUTTING ELEMENT FOR CUTTING THE WORKPIECE; (B) A STAND ADAPTED TO SUPPORT SAID WORKPIECE IN ALIGNMENT WITH SAID CUTTING MEMBER; (C) A HEAD ASSEMBLY ROTATABLY JOURNALING SAID CUTTING MEMBER AND RECIPROCALLY MOUNTED ON SAID STAND FOR RECIPROCATION TOWARD AND AWAY FROM A WORKPIECE SUPPORTED ON THE STAND; (D) AN ELECTRICAL MOTOR FOR DRIVING SAID CUTTING MEMBER IN ROTATION; AND (E) SWITCH MEANS IN THE ELECTRICAL CIRCUIT TO SAID ELECTRICAL MOTOR AND POSITIONED ON ONE PORTION OF SAID TOOL FOR ACTUATION BY CONTACT WITH A SECOND PORTION OF SAID TOOL WHICH MOVES RELATIVE TO SAID FIRST MENTIONED PORTION DURING RECIPROCATION OF SAID HEAD ASSEMBLY, SAID SWITCH MEANS INCLUDING A PAIR OF ELECTRICAL CONTACTS IN THE ELECTRICAL CIRCUIT OF SAID MOTOR, AND MEANS ALTERNATELY OPENING AND CLOSING SAID CONTACTS DURING EACH CONSECUTIVELY RECIPROCATING STROKE OF SAID HEAD ASSEMBLY AWAY FROM SAID WORKPIECE.
Claim 2
Dependent Claim
155 words
AN ELECTRICALLY POWERED TOOL FOR PERFORMING A CUTTING OPERATION ON A WORKPIECE COMPRISING: (A) A CUTTING ELEMENT FOR CUTTING THE WORKPIECE; (B) A STAND ADAPTED TO SUPPORT SAID WORKPIECE IN ALIGNMENT WITH SAID CUTTING MEMBER; (C) A HEAD ASSEMBLY ROTATABLY JOURNALING SAID CUTTING MEMBER AND RECIPROCALLY MOUNTED ON SAID STAND FOR RECIPROCATION TOWARD AND AWAY FROM A WORKPIECE SUPPORTED ON THE STAND; (D) AN ELECTRICAL MOTOR FOR DRIVING SAID CUTTING MEMBER IN ROTATION; AND (E) SWITCH MEANS IN THE ELECTRICAL CIRCUIT TO SAID ELECTRICAL MOTOR AND POSITIONED ON ONE PORTION OF SAID TOOL FOR ACTUATION BY CONTACT WITH A SECOND PORTION OF SAID TOOL WHICH MOVES RELATIVE TO SAID FIRST MENTIONED PORTION DURING RECIPROCATION OF SAID HEAD ASSEMBLY, SAID SWITCH MEANS INCLUDING A PAIR OF ELECTRICAL CONTACTS IN THE ELECTRICAL CIRCUIT OF SAID MOTOR, AND MEANS ALTERNATELY OPENING AND CLOSING SAID CONTACTS DURING EACH CONSECUTIVELY RECIPROCATING STROKE OF SAID HEAD ASSEMBLY AWAY FROM SAID WORKPIECE.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |