US3135173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm
Assignee: Midland Ross Corp
•
Filing: 1961-10-26
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Granted: 1964-06-02
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Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert K Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:57
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/02; F15; F15B; F15B15/00; F15B15/08; F15B15/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A CUP SHAPED DIAPHRAGM OF FABRIC REINFORCED RESILIENT MATERIAL FOR USE IN AN ACTUATOR HAVING A PISTON ADAPTED TO ENGAGE SAID DIAPHRAGM, SAID DIAPHRAGM HAVING AN ANNULAR LIP ADAPTED FOR CONNECTION TO AN ACTUATOR HOUSING, AN ANNULAR WALL MERGING WITH SAID LIP, A BOTTOM WALL SUBSTANTIALLY THE SIZE OF SAID PISTON AND MERGING WITH SAID ANNULAR WALL TO FORM A CUP, AND AT LEAST SEVERAL RADIALLY EXTENDING RIBS DISPOSED WITHIN SAID CUP IN UNIFORMLY SPACED RELATION TO EACH OTHER WITH OPPOSITE ENDS OF EACH OF SAID RIBS TERMINATING ADJACENT THE JUNCTURE OF SAID ANNULAR WALL AND SAID BOTTOM WALL AND BEING HOMOGENEOUS THEREWITH.
Claim 2
Dependent Claim
103 words
A CUP SHAPED DIAPHRAGM OF FABRIC REINFORCED RESILIENT MATERIAL FOR USE IN AN ACTUATOR HAVING A PISTON ADAPTED TO ENGAGE SAID DIAPHRAGM, SAID DIAPHRAGM HAVING AN ANNULAR LIP ADAPTED FOR CONNECTION TO AN ACTUATOR HOUSING, AN ANNULAR WALL MERGING WITH SAID LIP, A BOTTOM WALL SUBSTANTIALLY THE SIZE OF SAID PISTON AND MERGING WITH SAID ANNULAR WALL TO FORM A CUP, AND AT LEAST SEVERAL RADIALLY EXTENDING RIBS DISPOSED WITHIN SAID CUP IN UNIFORMLY SPACED RELATION TO EACH OTHER WITH OPPOSITE ENDS OF EACH OF SAID RIBS TERMINATING ADJACENT THE JUNCTURE OF SAID ANNULAR WALL AND SAID BOTTOM WALL AND BEING HOMOGENEOUS THEREWITH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |