US3083734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling seal diaphragm
Assignee: Bellofram Corp
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Filing: 1959-07-29
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Granted: 1963-04-02
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 John F Taplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A WOVEN FABRIC ELEMENT FORMED OF INTERLOCKING WARP THREADS AND WOOF THREADS, SAID ELEMENT BEING CIRCULAR IN CROSS SECTION AND INCLUDING A ROLLING WALL PORTION AND A FLAT, INWARDLY DIRECTED FLANGE PORTION EXTENDING FROM THE INNERMOST PERIPHERY THEREOF, SAID ROLLING WALL PORTION AND FLANGE PORTION BEING IN CIRCUMFERENTIAL COMPRESSION, THE AXIAL WARP AND WOOF THREADS BEING PERPENDICULAR TO EACH OTHER, NON-AXIAL WOOF THREADS ON EACH SIDE OF THE AXIS OF SAID ELEMENT THROUGHOUT THE SAME BEING ARCHED SYMMETRICALLY ABOUT SAID AXIAL WARP THREAD, WARP THREADS ON EACH SIDE OF THE AXIS OF SAID ELEMENT THROUGHOUT THE SAME BEING ARCHED SYMMETRICALLY ABOUT SAID AXIAL WOOF THREAD, AND NON-AXIAL WARP THREADS DEFINING WITH NON-AXIAL WOOF THREADS THROUGHOUT SAID ELEMENT A GENERALLY DIAMOND PATTERN IN EACH OF THE FOUR QUADRANTS FORMED BY SAID AXIAL WARP THREAD AND SAID AXIAL WOOF THREAD.
Claim 2
Dependent Claim
138 words
A WOVEN FABRIC ELEMENT FORMED OF INTERLOCKING WARP THREADS AND WOOF THREADS, SAID ELEMENT BEING CIRCULAR IN CROSS SECTION AND INCLUDING A ROLLING WALL PORTION AND A FLAT, INWARDLY DIRECTED FLANGE PORTION EXTENDING FROM THE INNERMOST PERIPHERY THEREOF, SAID ROLLING WALL PORTION AND FLANGE PORTION BEING IN CIRCUMFERENTIAL COMPRESSION, THE AXIAL WARP AND WOOF THREADS BEING PERPENDICULAR TO EACH OTHER, NON-AXIAL WOOF THREADS ON EACH SIDE OF THE AXIS OF SAID ELEMENT THROUGHOUT THE SAME BEING ARCHED SYMMETRICALLY ABOUT SAID AXIAL WARP THREAD, WARP THREADS ON EACH SIDE OF THE AXIS OF SAID ELEMENT THROUGHOUT THE SAME BEING ARCHED SYMMETRICALLY ABOUT SAID AXIAL WOOF THREAD, AND NON-AXIAL WARP THREADS DEFINING WITH NON-AXIAL WOOF THREADS THROUGHOUT SAID ELEMENT A GENERALLY DIAMOND PATTERN IN EACH OF THE FOUR QUADRANTS FORMED BY SAID AXIAL WARP THREAD AND SAID AXIAL WOOF THREAD.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |