US3243989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dies used in drawing, extrusion, forging, sizing and like operations
Assignee: Hard Alloys Ltd
•
Filing: 1963-03-27
•
Granted: 1966-04-05
•
Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Meats Peter Annber Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:33
CPC Classifications
B; B21; B21C; B21C3/00; B21C3/02; B21C3/04; B21C25/00; B21C25/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A DIE ASSEMBLY COMPRISING: AN ANNULAR BOLSTER MEMBER; A DIE INSERT WITHIN AND RADIALLY SPACED FROM SAID ANNULAR BOLSTER MEMBER; SUBSTANTIALLY RIGID SPACING MEANS BETWEEN SAID DIE INSERT AND SAID BOLSTER MEMBER COMPRISING ANNULAR MEANS HAVING INNER AND OUTER PERIPHERIES, SAID SPACING MEANS BEARING AGAINST BOTH SAID BOLSTER MEMBER AND DIE INSERT TO TRANSMIT RADIAL COMPRESSIVE FORCES THEREBETWEEN AND COMPRISING AT LEAST 10 CIRCUMFERENTIALLY SPACED SPACER PORTIONS, EACH OF SAID SPACER PORTIONS BEING JOINED TO AN ADJACENT SPACER PORTION ONLY AT THE EXTREMITY THEREOF ADJACENT ONE OF SAID PERIPHERIES, SAID PORTIONS BEING SUBSTANTIALLY UNIFORMLY SPACED AROUNG SAID DIE INSERT WHEREBY TO ENGAGE SAID INSERT AND BOLSTER THROUGHOUT NEARLY THEIR ENTIRE PERIPHERIES TO TRANSMIT RADIAL COMPRESSIVE FORCES THEREBETWEEN IN ALL RADIAL DIRECTIONS WHILE BEING INCAPABLE OF IMPOSING COMPRESSIVE FORCES ON SAID INSERT DIE TO CIRCUMFERENTIAL EXPANSION OR CONTRACTION.
Claim 2
Dependent Claim
137 words
A DIE ASSEMBLY COMPRISING: AN ANNULAR BOLSTER MEMBER; A DIE INSERT WITHIN AND RADIALLY SPACED FROM SAID ANNULAR BOLSTER MEMBER; SUBSTANTIALLY RIGID SPACING MEANS BETWEEN SAID DIE INSERT AND SAID BOLSTER MEMBER COMPRISING ANNULAR MEANS HAVING INNER AND OUTER PERIPHERIES, SAID SPACING MEANS BEARING AGAINST BOTH SAID BOLSTER MEMBER AND DIE INSERT TO TRANSMIT RADIAL COMPRESSIVE FORCES THEREBETWEEN AND COMPRISING AT LEAST 10 CIRCUMFERENTIALLY SPACED SPACER PORTIONS, EACH OF SAID SPACER PORTIONS BEING JOINED TO AN ADJACENT SPACER PORTION ONLY AT THE EXTREMITY THEREOF ADJACENT ONE OF SAID PERIPHERIES, SAID PORTIONS BEING SUBSTANTIALLY UNIFORMLY SPACED AROUNG SAID DIE INSERT WHEREBY TO ENGAGE SAID INSERT AND BOLSTER THROUGHOUT NEARLY THEIR ENTIRE PERIPHERIES TO TRANSMIT RADIAL COMPRESSIVE FORCES THEREBETWEEN IN ALL RADIAL DIRECTIONS WHILE BEING INCAPABLE OF IMPOSING COMPRESSIVE FORCES ON SAID INSERT DIE TO CIRCUMFERENTIAL EXPANSION OR CONTRACTION.
References Cited (Backward Citations)
US1597928A
Cited
US2559679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |