Patent US3240041A successfully refreshed from Google Patents.
US3240041A
Expired / Lapsed
US
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Apparatus for guiding a workpiece
Assignee: Maschinenfabrik Hasenclever AG
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Filing: 1963-10-04
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Granted: 1966-03-15
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Lucke Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:29
CPC Classifications
B; B21; B21H; B21H1/00; B21H1/22; B21J; B21J13/00; B21J13/08; B21J13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
APPARATUS FOR GUIDING A WORKPIECE, COMPRISING IN COMBINATION WITH FORGING ROLLS, A WORK HOLDER, A CARRIER FOR SAID WORK HOLDER, WHICH CARRIER IS MOVABLE IN THE DIRECTION IN WHICH THE WORKPIECE IS FED DURING THE FORGING OPERATION, SAID CARRIER HAVING A FIRST HOLLOW CYLINDRICAL OPENING HAVING A CENTRAL AXIS EXTENDING IN THE DIRECTION OF THE FEEDING MOVEMENT OF THE WORKPIECE, A STATIONARY PISTON IN SAID FIRST HOLLOW CYLINDRICAL OPENING IN THE CARRIER, SAID CARRIER HAVING A SECOND HOLLOW CYLINDRICAL OPENING HAVING A CENTRAL AXIS EXTENDING IN THE DIRECTION OF THE FEEDING MOVEMENT OF THE WORKPIECE, A SLIDE VALVE IN SAID SECOND HOLLOW CYLINDRICAL OPENING OF THE CARRIER AND HAVING VALVE LANDS DEFINING A VALVE CHAMBER IN SAID SLIDE VALVE, CONTROL CONDUITS BETWEEN BOTH HOLLOW CYLINDRICAL OPENINGS OF THE CARRIER, THE OPENINGS OF SAID CONTROL CONDUITS IN THE FIRST HOLLOW CYLINDRICAL OPENING BEING DISPOSED AT BOTH ENDS OF SAID OPENINGS, THE OPENINGS OF SAID CONTROL CONDUITS IN THE SECOND HOLLOW CYLINDRICAL OPENINGS BEING DISPOSED ADJACENT TO THE VALVE CHAMBER OF SAID SLIDE VALVE WHEN THE CARRIER IS BLOCKED, DRIVING FLUID IN
Claim 2
Dependent Claim
180 words
APPARATUS FOR GUIDING A WORKPIECE, COMPRISING IN COMBINATION WITH FORGING ROLLS, A WORK HOLDER, A CARRIER FOR SAID WORK HOLDER, WHICH CARRIER IS MOVABLE IN THE DIRECTION IN WHICH THE WORKPIECE IS FED DURING THE FORGING OPERATION, SAID CARRIER HAVING A FIRST HOLLOW CYLINDRICAL OPENING HAVING A CENTRAL AXIS EXTENDING IN THE DIRECTION OF THE FEEDING MOVEMENT OF THE WORKPIECE, A STATIONARY PISTON IN SAID FIRST HOLLOW CYLINDRICAL OPENING IN THE CARRIER, SAID CARRIER HAVING A SECOND HOLLOW CYLINDRICAL OPENING HAVING A CENTRAL AXIS EXTENDING IN THE DIRECTION OF THE FEEDING MOVEMENT OF THE WORKPIECE, A SLIDE VALVE IN SAID SECOND HOLLOW CYLINDRICAL OPENING OF THE CARRIER AND HAVING VALVE LANDS DEFINING A VALVE CHAMBER IN SAID SLIDE VALVE, CONTROL CONDUITS BETWEEN BOTH HOLLOW CYLINDRICAL OPENINGS OF THE CARRIER, THE OPENINGS OF SAID CONTROL CONDUITS IN THE FIRST HOLLOW CYLINDRICAL OPENING BEING DISPOSED AT BOTH ENDS OF SAID OPENINGS, THE OPENINGS OF SAID CONTROL CONDUITS IN THE SECOND HOLLOW CYLINDRICAL OPENINGS BEING DISPOSED ADJACENT TO THE VALVE CHAMBER OF SAID SLIDE VALVE WHEN THE CARRIER IS BLOCKED, DRIVING FLUID IN
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |