US3234648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool changers for forging presses
Assignee: British Iron and Steel Research Association BISRA
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Filing: 1963-05-23
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Granted: 1966-02-15
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Knowles Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:48
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/14; B21J; B21J13/00; B21J13/08; B21J13/085; Y; Y10; Y10T; Y10T483/00; Y10T483/17; Y10T483/1729; Y10T483/1731; Y10T483/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
FOR ASSOCIATION WITH A FORGING PRESS HAVING A PAIR OF INTERCHANGEABLE TOOLS, TOOL CHANGING APPARATUS COMPRISING A CARRIAGE MOVABLE TOWARDS AND AWAY FROM AN ASSOCIATED PRESS, A PAIR OF FIRST AND SECOND CYLINDRICAL TOOL MAGAZINES MOUNTED ON SAID CARRIAGE FOR ROTATION ABOUT A COMMON AXIS DISPOSED PARALLEL TO THE PLANE OF THE CARRIAGE, FIRST AND SECOND PLURALITIES OF SLOTTED OPENINGS FOR RECEIVING TOOLS, SAID OPENINGS BEING RESPECTIVELY AND CIRCUMFERENTIALLY DISTRIBUTED IN SAID MAGAZINES WITH THE AXES OF SAID OPENINGS DISPOSED PARALLEL TO SAID COMMON AXIS, DRIVE MEANS RESPECTIVELY INDEPENDENTLY ROTATE SAID MAGAZINES, LOCKING MEANS TO LOCK SAID MAGAZINES AGAIST ROTATION WITH ANY SELECTED PAIR OF SAID OPENINGS, ONE FROM EACH PLURALITY THEREOF, DISPOSED IN PREDETERMINED ROTATIONAL ANGULAR POSITIONS, AND TOOL TRANSFER MEANS ALIGNED WITH SAID PREDETERMINED POSITIONS TO EJECT TOOLS FROM SAID SELECTED OPENINGS TOWARDS SAID PRESS AND TO WITHDRAW TOOLS THEREINTO FROM SAID PRESS.
Claim 2
Dependent Claim
145 words
FOR ASSOCIATION WITH A FORGING PRESS HAVING A PAIR OF INTERCHANGEABLE TOOLS, TOOL CHANGING APPARATUS COMPRISING A CARRIAGE MOVABLE TOWARDS AND AWAY FROM AN ASSOCIATED PRESS, A PAIR OF FIRST AND SECOND CYLINDRICAL TOOL MAGAZINES MOUNTED ON SAID CARRIAGE FOR ROTATION ABOUT A COMMON AXIS DISPOSED PARALLEL TO THE PLANE OF THE CARRIAGE, FIRST AND SECOND PLURALITIES OF SLOTTED OPENINGS FOR RECEIVING TOOLS, SAID OPENINGS BEING RESPECTIVELY AND CIRCUMFERENTIALLY DISTRIBUTED IN SAID MAGAZINES WITH THE AXES OF SAID OPENINGS DISPOSED PARALLEL TO SAID COMMON AXIS, DRIVE MEANS RESPECTIVELY INDEPENDENTLY ROTATE SAID MAGAZINES, LOCKING MEANS TO LOCK SAID MAGAZINES AGAIST ROTATION WITH ANY SELECTED PAIR OF SAID OPENINGS, ONE FROM EACH PLURALITY THEREOF, DISPOSED IN PREDETERMINED ROTATIONAL ANGULAR POSITIONS, AND TOOL TRANSFER MEANS ALIGNED WITH SAID PREDETERMINED POSITIONS TO EJECT TOOLS FROM SAID SELECTED OPENINGS TOWARDS SAID PRESS AND TO WITHDRAW TOOLS THEREINTO FROM SAID PRESS.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |