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US4056682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket apparatus
Assignee: Nokia of America Corp
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Filing: 1976-02-18
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Granted: 1977-11-01
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Expires: 1996-02-18
Abstract
Abstract Gasket material which is curved in cross-sectional shape. The curved section is placed between mating flanges situated around an opening such as an RF conduit. The radius of curvature is such that the modulus of elasticity is not exceeded upon compression of the flanges and thus the gasket is reusable while providing maximum contact pressure on the mating surfaces for sealing purposes. The curved contact area is offset from any openings in the flange for the passage of fastening means that provide the compressive action. This offset of the maximum pressure contact areas from openings increases the sealing capability of the gasket.
Inventors
- 👤 Charlie C. Havens
- 👤 James A. Rutelonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:12
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016; Y; Y10; Y10S; Y10S277/00; Y10S277/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
RF sealing apparatus for sealing a connection upon compression between a first RF conduit flange and a second RF conduit flange comprising: a thin flexible electrically conducting substantially planar structure having a central opening therein alignable with a hole in said conduit and having a plurality of fastener passageways; an inside edge, defining said opening, angularly disposed from said planar structure to provide high pressure contact with said first flange; an inside curved contact area adjacent said inside edge to engage said second flange, for providing, under deformation, a high pressure contact therewith, the inside curved contact completely circumscribing said opening between said inside edge and said plurality of fastener passageways; an outside edge circumscribing said plurality of fastener passageways angularly disposed from said planar structure to produce high pressure contact with second flange; and an outside curved contact area adjacent said outside edge to engage said first flange, to provide, under deformation, a high pressure contact therewith.
Claim 2
Dependent Claim
158 words
RF sealing apparatus for sealing a connection upon compression between a first RF conduit flange and a second RF conduit flange comprising: a thin flexible electrically conducting substantially planar structure having a central opening therein alignable with a hole in said conduit and having a plurality of fastener passageways; an inside edge, defining said opening, angularly disposed from said planar structure to provide high pressure contact with said first flange; an inside curved contact area adjacent said inside edge to engage said second flange, for providing, under deformation, a high pressure contact therewith, the inside curved contact completely circumscribing said opening between said inside edge and said plurality of fastener passageways; an outside edge circumscribing said plurality of fastener passageways angularly disposed from said planar structure to produce high pressure contact with second flange; and an outside curved contact area adjacent said outside edge to engage said first flange, to provide, under deformation, a high pressure contact 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) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |