Patent US5646322A successfully refreshed from Google Patents.
Patent US3296853A successfully refreshed from Google Patents.
US3296853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-operated press
Assignee: Individual
•
Filing: 1966-01-25
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Granted: 1967-01-10
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Expires: 1986-01-25
Abstract
No abstract record available.
Inventors
- 👤 Beche Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:56
CPC Classifications
B; B21; B21J; B21J9/00; B21J9/10; B21J9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A FLUID-OPERATED PRESS COMPRISING A FRAME FORMING A BED ADAPTED TO SUPPORT A FIRST DIE; A RAM RECIPROCALLY GUIDED ON SAID FRAME AND ADAPTED TO SUPPORT A SECOND DIE CONFRONTING SAID FIRST DIE; A MAIN CYLINDER RIGID WITH SAID FRAME, SAID RAM HAVING A PART GUIDED IN SAID MAIN CYLINDER FOR DISPLACEMENT BY A HYDRAULIC FLUID PRESENT THEREIN; PLUNGER MEANS DISPOSED IN A PASSAGE COMMUNICATING WITH SAID MAIN CYLINDER FOR EXERTING PRESSURE UPON SAID HYDRAULIC FLUID, SAID MAIN CYLINDER BEING PROVIDED WITH AN EXTENSION FORMING AT LEAST ONE AUXILIARY CYLINDER COMMUNICATING WITH SAID PASSAGE AT LEAST IN AN OFF-NORMAL POSITION OF SAID RAM; PISTON MEANS DISPOSED IN SAID AUXILIARY CYLINDER FOR DISPLACEMENT CONCURRENTLY WITH SAID RAM BY SAID HYDRAULIC FLUID; AN ACCELERABLE MASS POSITIONED FOR ENTRAINMENT BY SAID PISTON MEANS; BIASING MEANS ACTING UPON SAID PISTON MEANS FOR SUBSTANTIALLY PREVENTING DISPLACEMENT THEREOF BY A HYDRAULIC PRESSURE BELOW A PREDETERMINED LIMIT, SAID LIMIT BEING SUBSTANTIALLY LESS THAN THE MAXIMUM HYDRAULIC FORCE DEVELOPED BY SAID PLUNGER MEANS UPON OPERATIVE DISPLACEMENT OF SAID RAM; AND DRIVING MEANS FOR ACTUATING SAID PLUNGER MEANS TO DISPLACE SAID RAM, SAID PISTON MEANS AND SAID MASS.
Claim 2
Dependent Claim
189 words
A FLUID-OPERATED PRESS COMPRISING A FRAME FORMING A BED ADAPTED TO SUPPORT A FIRST DIE; A RAM RECIPROCALLY GUIDED ON SAID FRAME AND ADAPTED TO SUPPORT A SECOND DIE CONFRONTING SAID FIRST DIE; A MAIN CYLINDER RIGID WITH SAID FRAME, SAID RAM HAVING A PART GUIDED IN SAID MAIN CYLINDER FOR DISPLACEMENT BY A HYDRAULIC FLUID PRESENT THEREIN; PLUNGER MEANS DISPOSED IN A PASSAGE COMMUNICATING WITH SAID MAIN CYLINDER FOR EXERTING PRESSURE UPON SAID HYDRAULIC FLUID, SAID MAIN CYLINDER BEING PROVIDED WITH AN EXTENSION FORMING AT LEAST ONE AUXILIARY CYLINDER COMMUNICATING WITH SAID PASSAGE AT LEAST IN AN OFF-NORMAL POSITION OF SAID RAM; PISTON MEANS DISPOSED IN SAID AUXILIARY CYLINDER FOR DISPLACEMENT CONCURRENTLY WITH SAID RAM BY SAID HYDRAULIC FLUID; AN ACCELERABLE MASS POSITIONED FOR ENTRAINMENT BY SAID PISTON MEANS; BIASING MEANS ACTING UPON SAID PISTON MEANS FOR SUBSTANTIALLY PREVENTING DISPLACEMENT THEREOF BY A HYDRAULIC PRESSURE BELOW A PREDETERMINED LIMIT, SAID LIMIT BEING SUBSTANTIALLY LESS THAN THE MAXIMUM HYDRAULIC FORCE DEVELOPED BY SAID PLUNGER MEANS UPON OPERATIVE DISPLACEMENT OF SAID RAM; AND DRIVING MEANS FOR ACTUATING SAID PLUNGER MEANS TO DISPLACE SAID RAM, SAID PISTON MEANS AND SAID MASS.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |