Patent US3139676A successfully refreshed from Google Patents.
US3139676A
Expired / Lapsed
US
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Die raising and changing device
Assignee: Individual
•
Filing: 1961-11-22
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Granted: 1964-07-07
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Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Raymond B Grover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:26
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/02; B30B15/028; Y; Y10; Y10S; Y10S100/00; Y10S100/918; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A MACHINE TOOL ASSEMBLY COMPRISING A MACHINE TOOL OF THE TYPE PROVIDED WITH A BOLSTER PLATE HAVING T-SLOTS IN ITS SURFACE, SAID T-SLOTS EACH HAVING A HEAD AND A THROAT PORTION; A DIE ON SAID BOLSTER PLATE ADAPTED TO BE FASTENED WITH SAID T-SLOTS; AND A DIE CHANGING DEVICE FOR RAISING AND LOWERING SAID DIE RELATIVE TO SAID BOLSTER PLATE, SAID DEVICE INCLUDING A FIRST ELONGATED MEMBER INSERTED WITHIN SAID HEAD PORTION OF SAID T-SLOT, A SECOND ELONGATED MEMBER INSERTED WITHIN SAID THROAT PORTION OF SAID T-SLOT, MEANS MOVING SAID MEMBERS RELATIVE TO EACH OTHER, AND ROLLER MEANS OPERATIVELY ASSOCIATED WITH SAID SECOND ELONGATED MEMBER FOR ENGAGING THE BOTTOM OF SAID DIE TO RAISE AND LOWER SAID DIE RELATIVE TO SAID TOOL.
Claim 2
Dependent Claim
122 words
A MACHINE TOOL ASSEMBLY COMPRISING A MACHINE TOOL OF THE TYPE PROVIDED WITH A BOLSTER PLATE HAVING T-SLOTS IN ITS SURFACE, SAID T-SLOTS EACH HAVING A HEAD AND A THROAT PORTION; A DIE ON SAID BOLSTER PLATE ADAPTED TO BE FASTENED WITH SAID T-SLOTS; AND A DIE CHANGING DEVICE FOR RAISING AND LOWERING SAID DIE RELATIVE TO SAID BOLSTER PLATE, SAID DEVICE INCLUDING A FIRST ELONGATED MEMBER INSERTED WITHIN SAID HEAD PORTION OF SAID T-SLOT, A SECOND ELONGATED MEMBER INSERTED WITHIN SAID THROAT PORTION OF SAID T-SLOT, MEANS MOVING SAID MEMBERS RELATIVE TO EACH OTHER, AND ROLLER MEANS OPERATIVELY ASSOCIATED WITH SAID SECOND ELONGATED MEMBER FOR ENGAGING THE BOTTOM OF SAID DIE TO RAISE AND LOWER SAID DIE RELATIVE TO SAID TOOL.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |