Patent US4284282A successfully refreshed from Google Patents.
US4284282A
Expired / Lapsed
US
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Sealing gasket
Assignee: Goetze GmbH
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Filing: 1980-02-14
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Granted: 1981-08-18
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Expires: 2000-02-14
Abstract
Abstract A sealing gasket has at least one framed throughgoing opening; the frame is formed of at least two superposed bent sheet metal border flanges which have a U-shaped cross section and which have legs of unlike lengths. The border flanges fully overlap the soft material of the gasket without forming an appreciable hollow space underneath the legs.
Inventors
- 👤 Klaus Lonne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:24
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/122; F16J15/123
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
101 words
In a sealing gasket having a soft-material plate provided with a throughgoing opening; a sheet metal frame surrounding the opening and formed of an inner and at least one outer superposed sheet metal border flange having a U-shaped cross section; each border flange having legs arranged at opposite faces of the plate along edge zones of said opening; the improvement wherein the legs of the outer border flange are longer than the legs of the inner border flange and further wherein the edge zone of the soft-material plate within the outline of said frame is fully filled with the soft material.
Claim 2
Dependent Claim
101 words
In a sealing gasket having a soft-material plate provided with a throughgoing opening; a sheet metal frame surrounding the opening and formed of an inner and at least one outer superposed sheet metal border flange having a U-shaped cross section; each border flange having legs arranged at opposite faces of the plate along edge zones of said opening; the improvement wherein the legs of the outer border flange are longer than the legs of the inner border flange and further wherein the edge zone of the soft-material plate within the outline of said frame is fully filled with the soft material.
Claim 3
Dependent Claim
30 words
A sealing gasket as defined in claim 1, wherein the legs of the outer border flange are at least by 1/3 longer than the legs of the inner border flange.
Claim 4
Dependent Claim
18 words
A sealing gasket as defined in claim 1, wherein the inner and outer border flanges have different thicknesses.
Claim 5
Dependent Claim
35 words
A sealing gasket as defined in claim 1, wherein said soft-material plate contains an impregnating material; and further wherein said edge zone within the outline of said frame is substantially free from said impregnating material.
References Cited (Backward Citations)
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Cited
GB1057861A
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DE1943810U
Cited
GB1170251A
Cited
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Cited
US3565449A
Cited
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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) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |