Patent US3690685A successfully refreshed from Google Patents.
US3690685A
Expired / Lapsed
US
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Sealing ring
Assignee: Siemens AG
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Filing: 1970-04-03
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Granted: 1972-09-12
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Expires: 1990-04-03
Abstract
Abstract Sealing ring includes an annular member of creep-resistant material formed with at least one pair of projecting webs defining an annular depression therebetween, and metal material received in the annular depression, the metal material having the properties of creeping under given stress conditions and of adhering to the creep-resistant material of the annular member.
Inventors
- 👤 Horst Porner
- 👤 Hans-Peter Schabert
- 👤 Robert Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:58
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0881; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/939; Y10S277/942
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
Sealing ring comprising an annular member of creep-resistant material having a sealing surface formed with at least one pair of webs projecting outwardly from said sealing surface and defining an annular depression therebetween, and metal material received in said annular depression and extending outwardly beyond said webs, said metal material having the properties of creeping under given stress conditions and of adhering to the creep-resistant material of said annular member.
Claim 2
Dependent Claim
70 words
Sealing ring comprising an annular member of creep-resistant material having a sealing surface formed with at least one pair of webs projecting outwardly from said sealing surface and defining an annular depression therebetween, and metal material received in said annular depression and extending outwardly beyond said webs, said metal material having the properties of creeping under given stress conditions and of adhering to the creep-resistant material of said annular member.
Claim 3
Dependent Claim
41 words
Sealing ring according to claim 1, wherein said webs are of such narrow width with respect to the width of said depression defined thereby, that bearing pressure of the sealing ring is absorbed mainly by the metal material in said depression.
Claim 4
Dependent Claim
12 words
Sealing ring according to claim 1, wherein said webs have sloping sides.
Claim 5
Dependent Claim
43 words
Sealing ring according to claim 1, wherein said creep-resistant material of said annular member is selected from the group consisting of steel and steel alloys, and said metal material received in said depression is selected from the group consisting of gold and silver.
Claim 6
Dependent Claim
22 words
Sealing ring according to claim 1, wherein said annular member has a substantially cylindrical outer surface and a substantially conical inner surface.
Claim 7
Dependent Claim
78 words
Sealing ring according to claim 1, wherein said annular member at least in the region thereof engageable with a surface so as to form a seal therewith when sealing pressure is applied to the sealing ring, is covered with a substantially uniform coating of said metal material, said coating being of such thickness as to creep, upon application of said sealing pressure to the sealing ring, into said depression in sufficient quantity as to completely fill said depression.
Claim 8
Dependent Claim
59 words
Sealing ring according to claim 6, wherein two additional annular depressions are formed in said annular member and are located adjacent said first-mentioned annular depression on opposite sides of said pair of projecting webs, and said webs extend from the outer surface of said annular member for a distance about twice the thickness of said coating of metal material.
Claim 9
Dependent Claim
37 words
Sealing ring according to claim 7, wherein said annular member has a substantially conical inner surface formed with an annular ridge at a level thereof opposite the annular depression located centrally of said two additional annular depressions.
Claim 10
Dependent Claim
50 words
Sealing ring according to claim 1, wherein said groove is located at an inner end of the sealing ring, and including an additional annular web projeCting from said annular member at a side of said depression toward the outer end of the sealing ring to serve as a dirt collector.
Claim 11
Dependent Claim
37 words
Sealing ring according to claim 1, wherein said annular member is formed with another annular depression disposed coaxially to said first-mentioned depression and separated therefrom by an annular gap formed in said annular member for absorbing leakage.
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |