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US3819191A Expired / Lapsed US ⏱️ 0.0 years remaining

Sealing ring assembly for rotary face seal

Assignee: QUALISEAL TECHNOLOGY Ltd
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Filing: 1972-06-26
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Granted: 1974-06-25
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Expires: 1992-06-26
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Abstract

Abstract A sealing ring assembly for cooperation with a rotatable shaft and a mating ring to provide a rotary face seal, the assembly comprising a sealing ring having inner cylindrical and lateral flat sealing surfaces possessing a high degree of smoothness, and a stabilizing ring snugly engaging the outer cylindrical surface of the sealing ring. The stabilizing ring has integral circumferential fin means which reinforce the ring so as better to resist centrifugal and thermal expansion forces tending to distort the cylindrical and flat sealing surfaces of the sealing ring. The fin means also serves as a heat dissipating mechanism, thereby effectively reducing the distorting forces resulting from thermal expansion.

Inventors

  • 👤 R Voitik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 04:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; Y; Y10; Y10S; Y10S277/00; Y10S277/93

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 100 words
A sealing ring assembly for a rotary face seal, comprising: a sealing ring having an inner cylindrical surface of diameter and smoothness providing relatively rotatable, sealing relationship with a rotatable shaft and a lateral flat surface providing relatively rotatable, sealing relationship with a stationary mating ring; and a stabilizing ring in press fit relationship around the outer cylindrical surface of said sealing ring, said stabilizing ring snugly engaging said sealing ring and having integral circumferential fin means, whereby said assembly has high resistance to forces tending to distort said cylindrical and flat sealing surfaces, and a high heat dissipation characteristic.
Claim 2
Dependent Claim 100 words
A sealing ring assembly for a rotary face seal, comprising: a sealing ring having an inner cylindrical surface of diameter and smoothness providing relatively rotatable, sealing relationship with a rotatable shaft and a lateral flat surface providing relatively rotatable, sealing relationship with a stationary mating ring; and a stabilizing ring in press fit relationship around the outer cylindrical surface of said sealing ring, said stabilizing ring snugly engaging said sealing ring and having integral circumferential fin means, whereby said assembly has high resistance to forces tending to distort said cylindrical and flat sealing surfaces, and a high heat dissipation characteristic.
Claim 3
Dependent Claim 24 words
The sealing ring assembly of claim 1 wherein said integral circumferential fin means is a single circumferential fin located centrally of said stabilizing ring.
Claim 4
Dependent Claim 20 words
The sealing ring assembly of claim 1 wherein said integral circumferential fin means is a pair of spaced circumferential fins.
Claim 5
Dependent Claim 21 words
The sealing ring assembly of claim 1 wherein said integral circumferential fin means is a plurality of uniformly spaced circumferential fins.

References Cited (Backward Citations)

US2494887A Cited
US2799522A Cited
US2917329A Cited
US2840350A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-24 1977-12-24 1978-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-24 1981-12-24 1982-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-24 1985-12-24 1986-06-25 $7700.00 Window Closed / Lapsed

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