US3770181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing ring for slide-ring seals
Assignee: Xylem Water Solutions AB
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Filing: 1971-12-07
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Granted: 1973-11-06
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Expires: 1991-12-07
Abstract
Abstract Sealing ring for slide-ring seals, composed of a hard material ring and a supporting ring, the supporting ring and the hard material ring having an essentially radial surface of contact with one another, the supporting ring and the hard material ring being held together by means of a resilient collar or sleeve at the supporting ring, which sleeve is rolled or pressue-turned against the hard material ring and thus holds it to the supporting ring.
Inventors
- 👤 F Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:54
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
A sealing ring assembly for slide-ring seals, comprising a hard material ring and a supporting ring, said supporting ring and said hard material ring having an essentially radial surface of contact with each other, said supporting ring being provided with a resilient sleeve projecting generally axially from said supporting ring a distance less than the axial length of said hard material ring, a groove formed in said supporting ring adjacent the point of projection of said resilient sleeve from said supporting ring and adjacent the surface of contact between said supporting ring and said hard material ring, said resilient sleeve being rolled radially against said hard material ring to hold said hard material ring against said supporting ring and a sealing means positioned between and in contact with the support ring and hard material ring.
Claim 2
Dependent Claim
135 words
A sealing ring assembly for slide-ring seals, comprising a hard material ring and a supporting ring, said supporting ring and said hard material ring having an essentially radial surface of contact with each other, said supporting ring being provided with a resilient sleeve projecting generally axially from said supporting ring a distance less than the axial length of said hard material ring, a groove formed in said supporting ring adjacent the point of projection of said resilient sleeve from said supporting ring and adjacent the surface of contact between said supporting ring and said hard material ring, said resilient sleeve being rolled radially against said hard material ring to hold said hard material ring against said supporting ring and a sealing means positioned between and in contact with the support ring and hard material ring.
Claim 3
Dependent Claim
19 words
A sealing ring assembly according to claim 1, in which said sleeve is made integral with said supporting ring.
Claim 4
Dependent Claim
21 words
A sealing ring assembly according to claim 1, in which said groove contains said sealing means which is of an O-ring.
Claim 5
Dependent Claim
19 words
A sealing ring assembly according to claim 1, in which said sealing means is a washer of soft material.
Claim 6
Dependent Claim
21 words
A sealing ring according to claim 1, in which the sleeve holds the hard material ring from a radially inner surface.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |