US3137215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling seal diaphragms
Assignee: Bellofram Corp
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Filing: 1962-10-26
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Granted: 1964-06-16
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Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 John F Taplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/06; B; B29; B29C; B29C43/00; B29C43/32; B29C43/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A ROLLING SEAL DIAPHRAGM WITH A FABRIC LAYER AND A WATER-TIGHT ELASTOMER LAYER ADHERENT THERETO, SAID FABRIC LAYER INCLUDING A HEAD PORTION PERPENDICULAR TO THE DIAPHRAGM AXIS AND A WALL PORTION DEFINED BY ROTATING A LINE ABOUT SAID AXIS AND INTERSECTING SAID HEAD, SAID FABRIC LAYER BEING DEFINED BY INTERLOCKING THREADS RUNNING WITHOUT INTERRUPTION FROM SAID WALL PORTION INTO SAID HEAD PORTION AND FROM SAID HEAD PORTION INTO SAID WALL PORTION, THE INTERLOCKING THREADS BEING MOVABLE RELATIVE TO ONE ANOTHER IN AT LEAST SOME DIRECTIONS, SAID FABRIC LAYER BEING FREE OF AXIAL EXTENSIBILITY THROUGHOUT SAID WALL PORTION AND BEING IN CIRCUMFERENTIAL COMPRESSION IN SAID WALL PORTION, THE DEGREE OF SAID CIRUMFERENTIAL COMPRESSION BEING SUFFICIENT TO PRODUCE A HERRINGBONE CONFIGURATION IN ZONES OF RELATIVELY LESS CIRCUMFERENTIAL FIBER MOVEMENT OWING TO THE RELATIONSHIP OF SAID INTERLOCKING THREADS ALONG THE MAXIMUM STRAIN PERIPHERY OF SAID WALL PORTION, AND SAID HEAD BEING UNINTERRUPTED BY A CENTRAL HOLE ACROSS AT LEAST HALF THE DIAMETER THEREOF.
Claim 2
Dependent Claim
160 words
A ROLLING SEAL DIAPHRAGM WITH A FABRIC LAYER AND A WATER-TIGHT ELASTOMER LAYER ADHERENT THERETO, SAID FABRIC LAYER INCLUDING A HEAD PORTION PERPENDICULAR TO THE DIAPHRAGM AXIS AND A WALL PORTION DEFINED BY ROTATING A LINE ABOUT SAID AXIS AND INTERSECTING SAID HEAD, SAID FABRIC LAYER BEING DEFINED BY INTERLOCKING THREADS RUNNING WITHOUT INTERRUPTION FROM SAID WALL PORTION INTO SAID HEAD PORTION AND FROM SAID HEAD PORTION INTO SAID WALL PORTION, THE INTERLOCKING THREADS BEING MOVABLE RELATIVE TO ONE ANOTHER IN AT LEAST SOME DIRECTIONS, SAID FABRIC LAYER BEING FREE OF AXIAL EXTENSIBILITY THROUGHOUT SAID WALL PORTION AND BEING IN CIRCUMFERENTIAL COMPRESSION IN SAID WALL PORTION, THE DEGREE OF SAID CIRUMFERENTIAL COMPRESSION BEING SUFFICIENT TO PRODUCE A HERRINGBONE CONFIGURATION IN ZONES OF RELATIVELY LESS CIRCUMFERENTIAL FIBER MOVEMENT OWING TO THE RELATIONSHIP OF SAID INTERLOCKING THREADS ALONG THE MAXIMUM STRAIN PERIPHERY OF SAID WALL PORTION, AND SAID HEAD BEING UNINTERRUPTED BY A CENTRAL HOLE ACROSS AT LEAST HALF THE DIAMETER THEREOF.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |