US3256762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic die cutting machine having inertia switch means to control hydraulic operation
Assignee: Herman Schwabe Inc
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Filing: 1965-02-12
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Granted: 1966-06-21
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Haas Edgar
- 👤 Kottsieper Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:45
CPC Classifications
A; A43; A43D; A43D83/00; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T83/00; Y10T83/869; Y10T83/8696; Y10T83/87; Y10T83/8702; Y10T83/8704; Y10T83/8706; Y10T83/8707; Y10T83/8712; Y10T83/8716
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PRESS COMPRISING A WORK SUPPORT, A PLATEN MOUNTED FOR MOVEMENT TOWARD OR AWAY FROM THE WORK SUPPORT, A CUTTING DIE THEREBETWEEN, HYDRAULIC MEANS TO MOVE THE PLATEN TOWARD THE WORK SUPPORT TO FORCE THE DIE THROUGH SHEET MATERIAL POSITIONED ON THE WORK SUPPORT, A SOLENOID OPERATED VALVE FOR SAID HYDRAULIC MEANS, AN ELECTRIC CIRCUIT CONTROLLING SAID VALVE, AN INERTIA SWITCH MOUNTED ON AND PHYSICALLY MOVABLE WITH SAID PLATEN AND SO ARRANGED THAT IT IS OPERATED BY INERTIA WHEN THE PLATEN CAUSES THE DIE TO BEGIN TO CUT THE MATERIAL, SAID SWITCH BEING SO CONNECTED IN SAID VALVE CONTROLLING CIRCUIT THAT OPERATION OF THE SWITCH REVERSES THE MOVEMENT OF THE PLATEN AFTER A SLIGHT DELAY ADEQUATE FOR THE DIE TO CUT THROUGH THE MATERIAL.
Claim 2
Dependent Claim
124 words
A PRESS COMPRISING A WORK SUPPORT, A PLATEN MOUNTED FOR MOVEMENT TOWARD OR AWAY FROM THE WORK SUPPORT, A CUTTING DIE THEREBETWEEN, HYDRAULIC MEANS TO MOVE THE PLATEN TOWARD THE WORK SUPPORT TO FORCE THE DIE THROUGH SHEET MATERIAL POSITIONED ON THE WORK SUPPORT, A SOLENOID OPERATED VALVE FOR SAID HYDRAULIC MEANS, AN ELECTRIC CIRCUIT CONTROLLING SAID VALVE, AN INERTIA SWITCH MOUNTED ON AND PHYSICALLY MOVABLE WITH SAID PLATEN AND SO ARRANGED THAT IT IS OPERATED BY INERTIA WHEN THE PLATEN CAUSES THE DIE TO BEGIN TO CUT THE MATERIAL, SAID SWITCH BEING SO CONNECTED IN SAID VALVE CONTROLLING CIRCUIT THAT OPERATION OF THE SWITCH REVERSES THE MOVEMENT OF THE PLATEN AFTER A SLIGHT DELAY ADEQUATE FOR THE DIE TO CUT THROUGH THE MATERIAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |