US3205290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making tubing for cartridge casings and the like
Assignee: Remington Arms Co LLC
•
Filing: 1963-07-26
•
Granted: 1965-09-07
•
Expires: 1983-07-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert A Covington
- 👤 Benjamin K Daubenspeck
- 👤 Rex E Dickey
- 👤 Edward M Yacko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:18
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/0029; B29C55/00; B29C55/30; B29C71/00; B29C71/02; B29D; B29D23/00; F; F42; F42B; F42B5/00; F42B5/26; F42B5/30; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2995/00; B29K2995/0037; B29K2995/0063; B29L; B29L2031/00; B29L2031/22; B29L2031/777; B29L2031/7772; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF PRODUCING A FORM RETAINING, HOLLOW TUBULAR MEMBER OF A DIAMETER SUITABLE FOR USE AS A CARTIDGE CASING AND WHICH IS ADAPTED TO RESIST HIGH RUPTURING FORCES IN BOTH A LONGITUDINAL AND A CIRCUMFERENTIAL DIRECTION AT HIGH TEMPERATURES, WHICH COMPRISES FIRST FORMING A THICK WALLED SEAMLESS TUBE HAVING A WALL THICKNESS OF AT LEAST 0.1 INCH FROM A MATERIAL COMPRISING AN ESSENTIALLY CRYSTALLINE, SYNTHETIC, SUBSTANTIALLY LINEAR POLYMER WHICH HAS AN ANNEALED DENSITY OF AT LEAST 0.94 AND AT LEAST 90% OF WHICH IS FORMED FROM ETHYLENE, STRETCHING SAID THICK WALLED TUBE BOTH LONGITUDINALLY AND CIRCUMFERENTIALLY OF THE LENGTHWISE AXIS THEREOF TO SUCH AN EXTENT AS TO REDUCE THE WALL THICKNESS OF THE FINAL TUBULAR MEMBER TO NOT LESS THAN ABOUT 0.02 INCH AND TO EFFECT SUBSTANTIAL ORIENTATION OF THE MOLECULES OF THE POLYMER BOTH LONGITUDINALLY AND CIRCUMFERENTIALLY OF THE LENGTHWISE AXIS OF THE MEMBER WHILE IT IS AT A TEMPERATURE BELOW THE CRYSTALLINE MELTING POINT OF SAID POLYMER, SAID STRETCHING
Claim 2
Independent Claim
162 words
A METHOD OF PRODUCING A FORM RETAINING, HOLLOW TUBULAR MEMBER OF A DIAMETER SUITABLE FOR USE AS A CARTIDGE CASING AND WHICH IS ADAPTED TO RESIST HIGH RUPTURING FORCES IN BOTH A LONGITUDINAL AND A CIRCUMFERENTIAL DIRECTION AT HIGH TEMPERATURES, WHICH COMPRISES FIRST FORMING A THICK WALLED SEAMLESS TUBE HAVING A WALL THICKNESS OF AT LEAST 0.1 INCH FROM A MATERIAL COMPRISING AN ESSENTIALLY CRYSTALLINE, SYNTHETIC, SUBSTANTIALLY LINEAR POLYMER WHICH HAS AN ANNEALED DENSITY OF AT LEAST 0.94 AND AT LEAST 90% OF WHICH IS FORMED FROM ETHYLENE, STRETCHING SAID THICK WALLED TUBE BOTH LONGITUDINALLY AND CIRCUMFERENTIALLY OF THE LENGTHWISE AXIS THEREOF TO SUCH AN EXTENT AS TO REDUCE THE WALL THICKNESS OF THE FINAL TUBULAR MEMBER TO NOT LESS THAN ABOUT 0.02 INCH AND TO EFFECT SUBSTANTIAL ORIENTATION OF THE MOLECULES OF THE POLYMER BOTH LONGITUDINALLY AND CIRCUMFERENTIALLY OF THE LENGTHWISE AXIS OF THE MEMBER WHILE IT IS AT A TEMPERATURE BELOW THE CRYSTALLINE MELTING POINT OF SAID POLYMER, SAID STRETCHING
References Cited (Backward Citations)
US2307817A
Cited
US2414776A
Cited
US2708772A
Cited
US2688773A
Cited
US2862234A
Cited
US2952867A
Cited
US2916764A
Cited
US2867848A
Cited
US3083410A
Cited
US2945258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |