US3488822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool bit lock
Assignee: Kennametal Inc
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Filing: 1965-02-23
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Granted: 1970-01-13
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Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Dennis G Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:12
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; B23B27/1662; B23B2205/00; B23B2205/04; B23B2205/16; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2272; Y10T407/2274; Y10T407/2276; Y10T407/2278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN COMBINATION; A TOOL HOLDER HAVING A NOTCHED IN ONE END TO RECEIVE A TOOL INSERT, SAID NOTCH HAVING A BACK WALL, A TOOL INSERT IN THE NOTCH AND HAVING A HOLE THEREIN, A BORE IN THE TOOL HOLDER IN SUBSTANTIAL REGISTRATION WITH SAID HOLE, A LEVER IN THE BORE HAVING ONE END PORTION IN SAID HOLE, SAID LEVER HAVING AREGION BETWEEN THE END PORTIONS THEREOF CLOSING FITTING SAID BORE WHILE THE PORTIONS OF THE LEVER ON OPPOSITE SIDES OF SAID REGION HAVE CLEARANCE IN SAID BORE WHEREBY THE LEVER IS TILTABLE IN THE BORE ABOUT SAID REGION, AND A CUP IN SAID BORE HAVING AN ECCENTRIC RECESS RECEIVING THE OTHER END OF SAID LEVER WHEREBY ROTATION OF THE CUP IN THE BORE WILL TILT SAID LEVER TO FORCE THE INSERT AGAINST THE SAID BACK WALL OF THE NOTCH AND WILL HOLD THE LEVER IN ITS TILTED POSITION.
Claim 2
Dependent Claim
148 words
IN COMBINATION; A TOOL HOLDER HAVING A NOTCHED IN ONE END TO RECEIVE A TOOL INSERT, SAID NOTCH HAVING A BACK WALL, A TOOL INSERT IN THE NOTCH AND HAVING A HOLE THEREIN, A BORE IN THE TOOL HOLDER IN SUBSTANTIAL REGISTRATION WITH SAID HOLE, A LEVER IN THE BORE HAVING ONE END PORTION IN SAID HOLE, SAID LEVER HAVING AREGION BETWEEN THE END PORTIONS THEREOF CLOSING FITTING SAID BORE WHILE THE PORTIONS OF THE LEVER ON OPPOSITE SIDES OF SAID REGION HAVE CLEARANCE IN SAID BORE WHEREBY THE LEVER IS TILTABLE IN THE BORE ABOUT SAID REGION, AND A CUP IN SAID BORE HAVING AN ECCENTRIC RECESS RECEIVING THE OTHER END OF SAID LEVER WHEREBY ROTATION OF THE CUP IN THE BORE WILL TILT SAID LEVER TO FORCE THE INSERT AGAINST THE SAID BACK WALL OF THE NOTCH AND WILL HOLD THE LEVER IN ITS TILTED POSITION.
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |