US3219356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-change chuck jaw
Assignee: Bullard Co
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Filing: 1964-01-31
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Granted: 1965-11-23
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Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Meredith W Wilterdink
- 👤 Leroy E Alvey
- 👤 Jesse W Mendenhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:53
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16195; B23B31/162; B23B31/16208; B23B31/16204; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1986; Y10T279/1993
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
IN A CHUCK, A BOTTOM JAW; MEANS FOR MOVING SAID BOTTOM JAW RADIALLY OF SAID CHUCK; A TOP JAW ADAPTED TO BE MOUNTED AT A PLURALITY OF POSITIONS ALONG SAID BOTTOM JAW, SAID TOP JAW INCLUDING RIGHT ANGUARLY ARRANGED CYLINDRICAL PINS THAT INTERSECT EACH OTHER ALONG A CHORD OF THEIR CORRESPONDING CIRCULAR CROSS SECTIONS AND WHICH PINS INCLUDE COOPERATING ECCENTRIC ARCUATE RECESS FOR EFFECTING A CAMMING INTEREFERENCE AND CLEARANCE OF THE TWO PINS IN TWO ROTATABLE POSITIONS OF ONE OF THE PINS; MEANS ASSOCIATED WITH THE ROTATABLE PIN FOR PREVENTING ITS ROTATION WITH THE ROTATABLE PIN FOR PREVENTING ITS ROTATION IN ONE DIRECTION; AND MEANS COOPERATING WITH, AND ADAPTED TO RELEASE SAID ROTATION PREVENTING MEANS WHEN IT IS DESIRED TO CHANGE THE POSITION OF SAID TOP JAW ON SAID BOTTOM JAW.
References Cited (Backward Citations)
US2569056A
Cited
US2667358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |