Patent US3262474A successfully refreshed from Google Patents.
US3262474A
Expired / Lapsed
US
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Hole saw assembly
Assignee: BLACK
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Filing: 1964-03-11
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Granted: 1966-07-26
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Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 Sherwood G Enders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:00
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0473; B23B31/00; B23B31/02; B23B31/10; B23B31/113; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/896; Y10T408/8973
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A HOLE SAW ASSEMBLY, COMPRISING: (A) A ROTATING DRIVING BODY; (B) AN INTERMEDIATE DRIVE MEMBER SLIDABLY MOUNTED, AXIALLY, ON SAID DRIVING BODY AND KEYED THERETO FOR CONJOINT ROTATION, SAID MEMBER HAVING AT LEAST ONE DRIVE ELEMENT PROJECTING RADIALLY OF SAID BODY; (C) A TUBULAR HOLE SAW BLADE HAVING CUTTING MEANS FORMED ALONG ITS EXPOSED EDGE; (D) MEANS TO REPLACEABLY MOUNT SAID BLADE UPON SAID DRIVING BODY, SAID MEANS COMPRISING A PERIPHERAL BAYONET SLOT FORMED IN SAID BLADE TO RECEIVE SAID DRIVE ELEMENT OF SAID MEMBER, THEREBY DRIVING SAID BLADE; AND (E) RESILIENT MEANS EXERTING AN AXIAL FORCE ON SAID INTERMEDIATE DRIVE MEMBER IN A DIRECTION AWAY FROM SAID CUTTING MEANS, THEREBY CONSTANTLY URGING SAID DRIVE ELEMENT TOWARDS THE BOTTOM OF SAID BAYONET SLOT.
Claim 2
Dependent Claim
123 words
A HOLE SAW ASSEMBLY, COMPRISING: (A) A ROTATING DRIVING BODY; (B) AN INTERMEDIATE DRIVE MEMBER SLIDABLY MOUNTED, AXIALLY, ON SAID DRIVING BODY AND KEYED THERETO FOR CONJOINT ROTATION, SAID MEMBER HAVING AT LEAST ONE DRIVE ELEMENT PROJECTING RADIALLY OF SAID BODY; (C) A TUBULAR HOLE SAW BLADE HAVING CUTTING MEANS FORMED ALONG ITS EXPOSED EDGE; (D) MEANS TO REPLACEABLY MOUNT SAID BLADE UPON SAID DRIVING BODY, SAID MEANS COMPRISING A PERIPHERAL BAYONET SLOT FORMED IN SAID BLADE TO RECEIVE SAID DRIVE ELEMENT OF SAID MEMBER, THEREBY DRIVING SAID BLADE; AND (E) RESILIENT MEANS EXERTING AN AXIAL FORCE ON SAID INTERMEDIATE DRIVE MEMBER IN A DIRECTION AWAY FROM SAID CUTTING MEANS, THEREBY CONSTANTLY URGING SAID DRIVE ELEMENT TOWARDS THE BOTTOM OF SAID BAYONET SLOT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |