US4554084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing ring
Assignee: Goetze GmbH
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Filing: 1983-11-28
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Granted: 1985-11-19
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Expires: 2003-11-28
Abstract
Abstract A sealing ring having at least one jacket face serving as slide face, the ring comprising pressed together fiber materials and slide materials, with the ring containing as a third component up to 10 parts by weight of such finely dispersed additives which chemically react with the fibers under the pressure and/or the development of heat resulting from friction stresses.
Inventors
- 👤 Klaus Lonne
- 👤 Klaus-Peter Majewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:12
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/126; F01; F01N; F01N13/00; F01N13/16; F01N13/18; F01N13/1805; F01N13/1827; F16L; F16L27/00; F16L27/02; F16L27/04; F16L27/06; F01N2310/00; F01N2310/14; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/936
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
Sealing ring having at least one jacket face which serves as slide face, the ring comprising pressed together fibers and slide material, with the fibers being pressed together with the slide material, and containing at least one additive which reacts chemically with the fibers under the pressure and/or the development of heat resulting from friction stresses, said additive being selected from the group of compounds consisting of chlorides, sulfates, carbonates, borates and phosphates of alkali metals; silicate and phosphate glasses; thio compounds; organic complexes of chlorine, sulfur, phosphorus and arsenic; boron carbide; potassium borofluoride; and other boron containing substances, whereby said additives form surface coatings or chemically polish said fibers; said additives and slide materials being evenly distributed throughout the fibers.
Claim 2
Dependent Claim
121 words
Sealing ring having at least one jacket face which serves as slide face, the ring comprising pressed together fibers and slide material, with the fibers being pressed together with the slide material, and containing at least one additive which reacts chemically with the fibers under the pressure and/or the development of heat resulting from friction stresses, said additive being selected from the group of compounds consisting of chlorides, sulfates, carbonates, borates and phosphates of alkali metals; silicate and phosphate glasses; thio compounds; organic complexes of chlorine, sulfur, phosphorus and arsenic; boron carbide; potassium borofluoride; and other boron containing substances, whereby said additives form surface coatings or chemically polish said fibers; said additives and slide materials being evenly distributed throughout the fibers.
Claim 3
Dependent Claim
22 words
Sealing ring as defined in claim 1, wherein the sealing ring contains from 0.25 to 10 percent by weight of the additive.
Claim 4
Dependent Claim
17 words
Sealing ring as defined in claim 1, wherein the additive is finely dispersed in the slide material.
Claim 5
Dependent Claim
27 words
Sealing ring as defined in claim 1, wherein the additive is at least one component selected from chlorides, sulfides, carbonates, borates and phosphates of the alkali metals.
Claim 6
Dependent Claim
24 words
Sealing ring as defined in claim 1, wherein the additive is at least one component selected from silicate glass powders and phosphate glass powders.
Claim 7
Dependent Claim
20 words
Sealing ring as defined in claim 1, wherein the additive is at least one thiocompound selected from thiosulfates and dithiophosphates.
Claim 8
Dependent Claim
24 words
Sealing ring as defined in claim 1, wherein the additive is at least one complex selected from organic chlorine, sulfur, phosphorus and arsenic complexes.
Claim 9
Dependent Claim
29 words
Sealing ring as defined in claim 1, wherein the additive is at least boron containing material selected from boron carbide (B 4 C) and potassium borofluoride (KBF 4 ).
Claim 10
Dependent Claim
13 words
Sealing ring as defined in claim 1, wherein the fibers comprise metal fibers.
References Cited (Backward Citations)
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US3480547A
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US3883147A
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DE2458803A1
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US4417733A
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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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |