US3659448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas meter diaphragm having intermediate stabilizing and tensioning ring
Assignee: Individual
•
Filing: 1970-07-22
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Granted: 1972-05-02
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Expires: 1990-07-22
Abstract
Abstract A gas meter diaphragm characterized by a rigid tensioning and stabilizing ring secured to the flexible diaphragm body intermediate a rigid, outer mounting rim and a centrally disposed rigid center pan for the purpose of eliminating wrinkles in the flexing portion of the diaphragm, and providing an intermediate, slightly yieldable, annular area of flexible material under tension around the center pan portion of the diaphragm assembly. The diaphragm being further characterized by a comparatively lighter weight, self-supporting central portion which eliminates the need for the usual carrier wire assembly employed to movably support the center pan portion of prior art diaphragms.
Inventors
- 👤 Karl L Schaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:44
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/20; G01F3/22; G01F3/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
In a gas meter diaphragm which includes a generally circular bowl-shaped diaphragm body of flexible, gas impervious sheet material, a substantially rigid, annular mounting rim secured to and supporting the outer marginal edge portion of said body, and a rigid center pan secured to the central portion of said diaphragm body; that improvement which comprises a rigid, annular stabilizer ring of generally right angular cross-sectional configuration secured to said diaphragm body intermediate said mounting rim and said center pan and defining on said diaphragm body an outer flexible bellows portion and a resiliently tensioned, planar central portion, said stabilizer ring including an axially directed rim portion and a generally radially inwardly directed flange portion arranged to form on the intermediate portion of said diaphragm body a smooth, open, right angular bend between the flexible bellows portion and the resiliently tensioned central portion of said diaphragm body and means for clamping said diaphragm body to the axially directed rim portion of said stabilizing ring.
Claim 2
Dependent Claim
163 words
In a gas meter diaphragm which includes a generally circular bowl-shaped diaphragm body of flexible, gas impervious sheet material, a substantially rigid, annular mounting rim secured to and supporting the outer marginal edge portion of said body, and a rigid center pan secured to the central portion of said diaphragm body; that improvement which comprises a rigid, annular stabilizer ring of generally right angular cross-sectional configuration secured to said diaphragm body intermediate said mounting rim and said center pan and defining on said diaphragm body an outer flexible bellows portion and a resiliently tensioned, planar central portion, said stabilizer ring including an axially directed rim portion and a generally radially inwardly directed flange portion arranged to form on the intermediate portion of said diaphragm body a smooth, open, right angular bend between the flexible bellows portion and the resiliently tensioned central portion of said diaphragm body and means for clamping said diaphragm body to the axially directed rim portion of said stabilizing ring.
References Cited (Backward Citations)
US2809521A
Cited
US3340734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |