US3778217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion die
Assignee: United States Atomic Energy Commission
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Filing: 1963-10-31
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Granted: 1973-12-11
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Expires: 1983-10-31
Abstract
Abstract 1. An extruding die for extruding an article having a multiplicity of ducts through its length, comprising a plurality of spiders, a plurality of pins extending from each of said spiders, one spider having a central duct and an off-center duct so that the material to be extruded can pass through both ducts.
Inventors
- 👤 S Bustamante
- 👤 D Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:14
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/02; A23G3/20; A23G3/2007; A23G3/2015; B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/11; B29C48/25; B29C48/30; B29C48/345; B30; B30B; B30B11/00; B30B11/22; B30B11/221; B29L; B29L2031/00; B29L2031/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
An extruding die for extruding an article having a multiplicity of ducts through its length, comprising a plurality of spiders, a plurality of pins extending from each of said spiders, one spider having a central duct and an off-center duct so that the material to be extruded can pass through both ducts.
Claim 2
Dependent Claim
52 words
An extruding die for extruding an article having a multiplicity of ducts through its length, comprising a plurality of spiders, a plurality of pins extending from each of said spiders, one spider having a central duct and an off-center duct so that the material to be extruded can pass through both ducts.
Claim 3
Dependent Claim
26 words
An extruding die as in claim 1 wherein the pins extending from a first spider means pass through the central duct in a second spider means.
Claim 4
Dependent Claim
66 words
An extruding die for extruding an article having a multiplicity of ducts throughout its length, comprising first spider means, second spider means in tandem with said first spider means, said second spider means being positioned closest to the discharge end of the die, a plurality of pins extending from each of said spiders and said second spider means having a central duct and an off-center duct.
Claim 5
Dependent Claim
66 words
An extruding die for extruding an article having a multiplicity of ducts throughout its length, comprising first spider means, second spider means in tandem with said first spider means, said second spider means being positioned closest to the discharge end of the die, a plurality of pins extending from each of said spiders and said second spider means having a central duct and an off-center duct.
Claim 6
Dependent Claim
26 words
An extruding die as in claim 3 wherein the pins extending from the first spider means pass through the central duct in the second spider means.
Claim 7
Dependent Claim
21 words
An extruding die as in claim 3 wherein said second spider means are recessed from the discharge end of the die.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |