US3310833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shirring apparatus
Assignee: Devro Teepak Inc
•
Filing: 1965-12-15
•
Granted: 1967-03-28
•
Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 James W Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:28
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN AN APPARATUS FOR SHIRRING TUBULAR SYNTHETIC CASING HAVING A MANDREL ALONG WHICH A GAS INFLATED CASING IS FED, A PLURALITY OF IDENTICAL SHIRRING WHEELS EACH HAVING CLOSELY SPACED SHIRRING LUGS SPACED AROUND ITS PERIPHERY, SAID SHIRRING LUGS BEING NARROW AND CLOSELY SPACED IN RELATION TO THE DIAMETER OF THE CASING BEING SHIRRED, THE PERIPHERIES OF SAID SHIRRING WHEELS BEING SPACED EQUIDISTANT FROM THE AXIS OF SAID MANDREL, AND SAID SHIRRING LUGS BEING POSITIONED FOR SIMULTANEOUS ROTATION TO ENGAGE AND INDENT THE INFLATED CASING SIMULTANEOUSLY AROUND ITS ENTIRE PERIPHERY FROM AT LEAST TWO RADIALLY SPACED DIRECTIONS TO CAUSE A CIRCUMFERENTIALLY DISPOSED PLEAT TO FORM IN THE SPACE BETWEEN THE LUGS IN SHIRRING CONTACT WITH THE CASING AND THE NEXT ADJACENT LUGS.
Claim 2
Dependent Claim
121 words
IN AN APPARATUS FOR SHIRRING TUBULAR SYNTHETIC CASING HAVING A MANDREL ALONG WHICH A GAS INFLATED CASING IS FED, A PLURALITY OF IDENTICAL SHIRRING WHEELS EACH HAVING CLOSELY SPACED SHIRRING LUGS SPACED AROUND ITS PERIPHERY, SAID SHIRRING LUGS BEING NARROW AND CLOSELY SPACED IN RELATION TO THE DIAMETER OF THE CASING BEING SHIRRED, THE PERIPHERIES OF SAID SHIRRING WHEELS BEING SPACED EQUIDISTANT FROM THE AXIS OF SAID MANDREL, AND SAID SHIRRING LUGS BEING POSITIONED FOR SIMULTANEOUS ROTATION TO ENGAGE AND INDENT THE INFLATED CASING SIMULTANEOUSLY AROUND ITS ENTIRE PERIPHERY FROM AT LEAST TWO RADIALLY SPACED DIRECTIONS TO CAUSE A CIRCUMFERENTIALLY DISPOSED PLEAT TO FORM IN THE SPACE BETWEEN THE LUGS IN SHIRRING CONTACT WITH THE CASING AND THE NEXT ADJACENT LUGS.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |