US3276239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press brake die retainer
Assignee: Kaufmann Tool and Engineering Co
•
Filing: 1964-04-06
•
Granted: 1966-10-04
•
Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Howard S Achler
- 👤 Herman H Lerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:35
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/06; B21; B21D; B21D5/00; B21D5/02; B21D5/0209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A DIE RETAINER FOR A URETHANE RUBBER DIE PAD WHERE THE DIE RETAINER PROVIDES AN ELONGATED DIE PAD CHAMBER HAVING PARALLEL SIDE WALLS, END WALLS, SUPPORT SURFACES FOR THE PAD AND A RELIEF RECESS CENTRALLY OF THE SUPPORT SURFACES, THE IMPROVED DIE RETAINER CHARACTERIZED BY THE COMBINATION OF AN ELONGATED BODY OF EXTRUDED ALUMINUM DEFINING THEREIN AN ELONGATED DIE-PAD RECESS BOUNDED BY ELONGATED UPRIGHT PARALLEL SPACED SIDE WALLS, ELONGATED SUPPORT SURFACES FOR A DIE PAD LOCATED IN A HORIZONTAL PLANE PERPENDICULAR TO THE SIDE WALLS AND SPACED BELOW THE UPPER EDGES OF THE SIDE WALLS, A RELIEF SPACE LONGITUDINALLY OF THE BODY LOCATED CENTRALLY OF THE SUPPORT SURFACES, AND END PLATES ON THE EXTRUDED BODY PROJECTING ACROSS THE DIE-PAD RECESS TO DEFINE A DIE-PAD CHAMBER.
Claim 2
Dependent Claim
126 words
IN A DIE RETAINER FOR A URETHANE RUBBER DIE PAD WHERE THE DIE RETAINER PROVIDES AN ELONGATED DIE PAD CHAMBER HAVING PARALLEL SIDE WALLS, END WALLS, SUPPORT SURFACES FOR THE PAD AND A RELIEF RECESS CENTRALLY OF THE SUPPORT SURFACES, THE IMPROVED DIE RETAINER CHARACTERIZED BY THE COMBINATION OF AN ELONGATED BODY OF EXTRUDED ALUMINUM DEFINING THEREIN AN ELONGATED DIE-PAD RECESS BOUNDED BY ELONGATED UPRIGHT PARALLEL SPACED SIDE WALLS, ELONGATED SUPPORT SURFACES FOR A DIE PAD LOCATED IN A HORIZONTAL PLANE PERPENDICULAR TO THE SIDE WALLS AND SPACED BELOW THE UPPER EDGES OF THE SIDE WALLS, A RELIEF SPACE LONGITUDINALLY OF THE BODY LOCATED CENTRALLY OF THE SUPPORT SURFACES, AND END PLATES ON THE EXTRUDED BODY PROJECTING ACROSS THE DIE-PAD RECESS TO DEFINE A DIE-PAD CHAMBER.
References Cited (Backward Citations)
US2239339A
Cited
US2781849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |