US3116052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter bit and support therefor having resilient detent means
Assignee: Joy Manufacturing Co
•
Filing: 1959-12-01
•
Granted: 1963-12-31
•
Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 Charles F Osgood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:42
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/18; E21C35/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A CUTTING MECHANISM, THE COMBINATION WITH A SUPPORT HAVING A SOCKET AND A CUTTER BIT HAVING A SHANK RECEIVABLE IN SAID SOCKET, OF IMPROVED MEANS FOR HOLDING THE BIT IN CUTTING POSITION ON THE SUPPORT COMPRISING A TRANSVERSE BORE IN SAID SUPPORT AND ENTERING THE REAR SIDE OF SAID SOCKET, A ROTARY LOCK ARRANGED IN SAID BORE FOR ROTATION RELATIVE TO SAID SUPPORT AND HAVING A LOCKING ELEMENT CONSTANTLY URGED ARCUATELY TOWARD A COMPLEMENTAL LOCKING SURFACE ON THE REAR SIDE OF THE INNER PORTION OF THE BIT SHANK, SAID LOCKING ELEMENT BEING MAINTAINED AGAINST TRANSLATORY MOVEMENT RELATIVE TO SAID LOCKING SURFACE OF SAID BIT SHANK DURING MOVEMENT OF THE LATTER INTO BIT HOLDING POSITION, AND RESILIENT MEANS FOR CONSTANTLY URGING SAID LOCK TOWARD SEATED POSITION AND AGAINST WHOSE RESILIENT YIELDING ACTION THE LOCK IS RELEASABLE.
Claim 2
Dependent Claim
136 words
IN A CUTTING MECHANISM, THE COMBINATION WITH A SUPPORT HAVING A SOCKET AND A CUTTER BIT HAVING A SHANK RECEIVABLE IN SAID SOCKET, OF IMPROVED MEANS FOR HOLDING THE BIT IN CUTTING POSITION ON THE SUPPORT COMPRISING A TRANSVERSE BORE IN SAID SUPPORT AND ENTERING THE REAR SIDE OF SAID SOCKET, A ROTARY LOCK ARRANGED IN SAID BORE FOR ROTATION RELATIVE TO SAID SUPPORT AND HAVING A LOCKING ELEMENT CONSTANTLY URGED ARCUATELY TOWARD A COMPLEMENTAL LOCKING SURFACE ON THE REAR SIDE OF THE INNER PORTION OF THE BIT SHANK, SAID LOCKING ELEMENT BEING MAINTAINED AGAINST TRANSLATORY MOVEMENT RELATIVE TO SAID LOCKING SURFACE OF SAID BIT SHANK DURING MOVEMENT OF THE LATTER INTO BIT HOLDING POSITION, AND RESILIENT MEANS FOR CONSTANTLY URGING SAID LOCK TOWARD SEATED POSITION AND AGAINST WHOSE RESILIENT YIELDING ACTION THE LOCK IS RELEASABLE.
References Cited (Backward Citations)
US2907559A
Cited
US2965365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |