US3985366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duo-cone seal flexible mounting
Assignee: Caterpillar Inc
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Filing: 1975-10-06
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Granted: 1976-10-12
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Expires: 1995-10-06
Abstract
Abstract A seal assembly has a pair of duo-cone seals positioned by a like pair of torics for axial loading. An insert member of flexible material is located within the member defining one of a pair of confronting inclined surfaces operatively containing the torics. The flexible insert members are not susceptible of oxidation when exposed to the atmosphere.
Inventors
- 👤 Eugene Alan Plouzek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/344
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
In a rotatable face seal assembly having a resilient toric disposed between confronting inclined loading surfaces of a pair of members, said members being operatively coupled to rotatable seal ring means to provide an axial force for effecting a rotatable seal, said members being axially movable relative to each other so as to contain the toric therebetween and allow contacting movement of the toric with respect to the inclined surfaces, the improvement comprising, an insert member of integral one-piece construction and being of flexible material within one of said members defining one of said confronting inclined surfaces, said insert member being descrete from and not bonded to said members so as to be removable therefrom.
Claim 2
Dependent Claim
115 words
In a rotatable face seal assembly having a resilient toric disposed between confronting inclined loading surfaces of a pair of members, said members being operatively coupled to rotatable seal ring means to provide an axial force for effecting a rotatable seal, said members being axially movable relative to each other so as to contain the toric therebetween and allow contacting movement of the toric with respect to the inclined surfaces, the improvement comprising, an insert member of integral one-piece construction and being of flexible material within one of said members defining one of said confronting inclined surfaces, said insert member being descrete from and not bonded to said members so as to be removable therefrom.
Claim 3
Dependent Claim
13 words
The invention of claim 1 wherein said insert member is of non-oxidizing material.
Claim 4
Dependent Claim
13 words
The invention of claim 1 wherein said insert member is of resilient material.
Claim 5
Dependent Claim
18 words
The invention of claim 1 wherein a seal ring means defines the other of said confronting inclined surfaces.
Claim 6
Dependent Claim
53 words
The invention of claim 4 further including a second pair of members defining a second inclined loading surface and having a second toric therebetween, and wherein one member of said second pair of members is a second seal ring in face-to-face contacting relation with said seal ring of said first pair of members.
Claim 7
Dependent Claim
22 words
The invention of claim 5 further including a second insert member of flexible material within one of said second pair of members.
Claim 8
Dependent Claim
13 words
The invention of claim 6 wherein said insert members are of non-oxidizing material.
Claim 9
Dependent Claim
13 words
The invention of claim 6 wherein said insert members are of resilient material.
Claim 10
Dependent Claim
26 words
The invention of claim 6 wherein said insert members are located within the members defining the confronting surfaces opposite the surfaces defined by said seal rings.
Claim 11
Dependent Claim
32 words
The invention of claim 6 wherein said insert members are generally ring-shaped defining inner and outer diameters and having an annular groove on the inner diameter thereof adapted to receive said torics.
References Cited (Backward Citations)
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Cited
US3195421A
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US3322431A
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US3463560A
Cited
US3540743A
Cited
US3547452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |