US3264392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making rolling seal diaphragms
Assignee: Bellofram Corp
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Filing: 1964-04-01
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Granted: 1966-08-02
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 John F Taplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/36; B29C51/00; B29C51/002; B29C51/004; B29C51/08; B29C51/082; B29C51/085; Y; Y10; Y10S; Y10S425/00; Y10S425/019; Y10S425/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A METHOD OF MANUFACTURING A ROLLING SEAL DIAPHRAGM WITH A ROLLING WALL OF IMPROVED LIMITED EXTENSIBILITY CHARACTERISTICS WHICH COMPRISES THE STEPS OF FORMING A FABRIC WALL WITH AN OUTER SURFACE DEFINED BY ROTATING A FIRST LINE ABOUT AN AXIS, AN INNER SURFACE CONCENTRIC WITH SAID OUTER SURFACE, AND MADE UP OF INTERLOCKING THREADS COOPERATING TO LIMIT ANY CIRCUMFERENTIAL EXTENSIBILITY AND PREVENT ANY AXIAL EXTENSIBILITY, ENGAGING SAID FABRIC WALL OVER AT LEAST SOME PERIPHERIES OF ONE SAID SURFACE THEREOF WITH A DIE OF CONFIGURATION CORRESPONDING WITH SAID LAST-MENTIONED SURFACE OVER SAID PERIPHERIES, ENGAGING SAID FABRIC WALL OVER CORRESPONDING PERIPHERIES OF THE OTHER SAID SURFACE THEREOF WITH A SECOND DIE OF MATING CONFIGURATION TO GRIP SAID FABRIC WALL BETWEEN SAID DIES AROUND SAID PERIPHERIES, SIMULTANEOUSLY DECREASING THE DIAMETER OF THE DIE ENGAGING SAID OUTER SURFACE AND DECREASING THE DIAMETER OF THE DIE ENGAGING SAID INNER SURFACE WHILE PRESSING SAID FABRIC WALL THEREBETWEEN, TO REDUCE THE DIAMETER OF SAID FABRIC ELEMENT AT EACH OF SAID PERIPHERIES, AND SETTING SAID FABRIC ELEMENT IN ITS LAST-MENTIONED CONFIGURATION OF REDUCED DIAMETER AT EACH OF SAID PERIPHERIES.
Claim 2
Independent Claim
180 words
A METHOD OF MANUFACTURING A ROLLING SEAL DIAPHRAGM WITH A ROLLING WALL OF IMPROVED LIMITED EXTENSIBILITY CHARACTERISTICS WHICH COMPRISES THE STEPS OF FORMING A FABRIC WALL WITH AN OUTER SURFACE DEFINED BY ROTATING A FIRST LINE ABOUT AN AXIS, AN INNER SURFACE CONCENTRIC WITH SAID OUTER SURFACE, AND MADE UP OF INTERLOCKING THREADS COOPERATING TO LIMIT ANY CIRCUMFERENTIAL EXTENSIBILITY AND PREVENT ANY AXIAL EXTENSIBILITY, ENGAGING SAID FABRIC WALL OVER AT LEAST SOME PERIPHERIES OF ONE SAID SURFACE THEREOF WITH A DIE OF CONFIGURATION CORRESPONDING WITH SAID LAST-MENTIONED SURFACE OVER SAID PERIPHERIES, ENGAGING SAID FABRIC WALL OVER CORRESPONDING PERIPHERIES OF THE OTHER SAID SURFACE THEREOF WITH A SECOND DIE OF MATING CONFIGURATION TO GRIP SAID FABRIC WALL BETWEEN SAID DIES AROUND SAID PERIPHERIES, SIMULTANEOUSLY DECREASING THE DIAMETER OF THE DIE ENGAGING SAID OUTER SURFACE AND DECREASING THE DIAMETER OF THE DIE ENGAGING SAID INNER SURFACE WHILE PRESSING SAID FABRIC WALL THEREBETWEEN, TO REDUCE THE DIAMETER OF SAID FABRIC ELEMENT AT EACH OF SAID PERIPHERIES, AND SETTING SAID FABRIC ELEMENT IN ITS LAST-MENTIONED CONFIGURATION OF REDUCED DIAMETER AT EACH OF SAID PERIPHERIES.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |