US3299474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick change apparatus for extrusion dies
Assignee: Ashworth Mcdade Inc
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Filing: 1965-03-30
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Granted: 1967-01-24
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Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas Ashworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:29
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/256; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN A QUICK CHANGE THE DIE MECHANISM FOR EXTRUSION APPARATUS THE COMBINATION OF A HOUSING DEFINING AN EXTRUSION CYLINDER, A RING SHAPED SUPPORT HEAD HAVING AN OPENING THERETHROUGH FIXEDLY MOUNTED TO THE HOUSING IN CONCENTRIC ALIGNMENT WITH THE CYLINDER, A PLURALITY OF LOCKING KEYS RECEIVED FOR RADICAL SLIDING MOVEMENT BY THE SUPPORT HEAD, A CAM RING MOUNTED IN LIMITED ROTATABLE RELATION TO THE SUPPORT HEAD AND ENGAGING SAID LOCKING KEYS TO EFFECT SUBSTANTIALLY UNIFORM RADIAL MOVEMENT THEREOF UPON ROTATION OF SAID RING, A BRACKET FIXEDLY MOUNTED TO THE CIRCUMFERENTIAL EDGE OF THE SUPPORT HEAD AND DIRECTED SUBSTANTIALLY RADIALLY THEREFROM, AN ELONGATED FULCRUM PIN MOUNTED TO FIXED RELATION TO THE BRACKET SO AS TO BE IN SUBSTANTIAL ALIGNMENT WITH THE AXIS OF THE SUPPORT HEAD, A SUPPORT ARM MOUNTED IN SLIDING, PIVOTAL AND TILTING RELATIONSHIP TO THE FULCRUM PIN, AND A DIE ADAPTER OPERATIVELY MOUNTED TO THE ARM AND RECEIVABLE IN THE OPENING OF THE SUPPORT HEAD TO BE
Claim 2
Dependent Claim
158 words
IN A QUICK CHANGE THE DIE MECHANISM FOR EXTRUSION APPARATUS THE COMBINATION OF A HOUSING DEFINING AN EXTRUSION CYLINDER, A RING SHAPED SUPPORT HEAD HAVING AN OPENING THERETHROUGH FIXEDLY MOUNTED TO THE HOUSING IN CONCENTRIC ALIGNMENT WITH THE CYLINDER, A PLURALITY OF LOCKING KEYS RECEIVED FOR RADICAL SLIDING MOVEMENT BY THE SUPPORT HEAD, A CAM RING MOUNTED IN LIMITED ROTATABLE RELATION TO THE SUPPORT HEAD AND ENGAGING SAID LOCKING KEYS TO EFFECT SUBSTANTIALLY UNIFORM RADIAL MOVEMENT THEREOF UPON ROTATION OF SAID RING, A BRACKET FIXEDLY MOUNTED TO THE CIRCUMFERENTIAL EDGE OF THE SUPPORT HEAD AND DIRECTED SUBSTANTIALLY RADIALLY THEREFROM, AN ELONGATED FULCRUM PIN MOUNTED TO FIXED RELATION TO THE BRACKET SO AS TO BE IN SUBSTANTIAL ALIGNMENT WITH THE AXIS OF THE SUPPORT HEAD, A SUPPORT ARM MOUNTED IN SLIDING, PIVOTAL AND TILTING RELATIONSHIP TO THE FULCRUM PIN, AND A DIE ADAPTER OPERATIVELY MOUNTED TO THE ARM AND RECEIVABLE IN THE OPENING OF THE SUPPORT HEAD TO BE
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |