US4674755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial and radial sealing assembly
Assignee: SKF Industrie SpA
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Filing: 1985-08-19
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Granted: 1987-06-23
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Expires: 2005-08-19
Abstract
Abstract An axial and radial sealing assembly comprising a protection ring which can be disposed annularly about a first body and frontally of a second body, and including a first part having a support function which carries a second part which has a sealing function. The main characteristic of this assembly is the fact that this second part has first radial surfaces forming an axial seal with the second body and second radial surfaces forming a radial seal with the first body.
Inventors
- 👤 Franco Colanzi
- 👤 Angelo Vignotto
- 👤 Mario Bessone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:03
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7803; F16C33/7813; F16C19/00; F16C19/22; F16C19/34; F16C19/38; F16C19/383; F16C19/385; F16C19/386; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; Y; Y10; Y10S; Y10S277/00; Y10S277/904; Y10S277/918
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
A seal assembly for use in conjunction with a housing, a shaft carried on said housing and being rotatable about a longitudinal axis, and a bearing disposed between said housing and said shaft, said assembly comprising: a bearing cover carried on said shaft generally exterior of said housing; a spacer disposed along said shaft between said bearing and said bearing cover; and a ring seal disposed about such spacer between said shaft and said housing and including radial facing means for forming a first seal with radial facing surface means of said cover and a second seal with said spacer.
Claim 2
Dependent Claim
100 words
A seal assembly for use in conjunction with a housing, a shaft carried on said housing and being rotatable about a longitudinal axis, and a bearing disposed between said housing and said shaft, said assembly comprising: a bearing cover carried on said shaft generally exterior of said housing; a spacer disposed along said shaft between said bearing and said bearing cover; and a ring seal disposed about such spacer between said shaft and said housing and including radial facing means for forming a first seal with radial facing surface means of said cover and a second seal with said spacer.
Claim 3
Dependent Claim
20 words
The invention according to claim 1, wherein said second seal includes a radially outwardly depending annular groove facing said spacer.
Claim 4
Dependent Claim
27 words
The invention according to claim 1, wherein said ring seal comprises a metal core and an elastomeric material disposed about at least a part of said core.
Claim 5
Dependent Claim
110 words
A seal assembly for use in conjunction with a housing and a shaft carried on said housing and being rotatable about a longitudinal axis, said assembly comprising: a rotatable body carried on said shaft generally exterior of said housing; a spacer disposed about said shaft between said shaft and said housing; a ring seal disposed about said spacer between said spacer and said housing and including radial facing surface means for forming a first seal with radially facing surface means of said body and a second seal with said spacer; and a screen disposed on and depending radially outwardly from said spacer adjacent to but spaced from said second seal.
Claim 6
Dependent Claim
110 words
A seal assembly for use in conjunction with a housing and a shaft carried on said housing and being rotatable about a longitudinal axis, said assembly comprising: a rotatable body carried on said shaft generally exterior of said housing; a spacer disposed about said shaft between said shaft and said housing; a ring seal disposed about said spacer between said spacer and said housing and including radial facing surface means for forming a first seal with radially facing surface means of said body and a second seal with said spacer; and a screen disposed on and depending radially outwardly from said spacer adjacent to but spaced from said second seal.
Claim 7
Dependent Claim
18 words
The invention according to claim 4, wherein said screen is disposed between said second seal and said body.
Claim 8
Dependent Claim
19 words
The invention according to claim 5, wherein said spacer includes a radially inwardly depending circumferential groove adjacent said screen.
Claim 9
Dependent Claim
18 words
The invention according to claim 4, wherein said second seal is disposed between said screen and said body.
Claim 10
Dependent Claim
20 words
The invention according to claim 4, wherein said second seal includes a radially outwardly depending annular groove facing said spacer.
Claim 11
Dependent Claim
27 words
The invention according to claim 4, wherein said ring seal comprises a metal core and an elastomeric material disposed about at least a part of said core.
Claim 12
Dependent Claim
160 words
A seal assembly for use in conjunction with a housing and a shaft carried on said housing and being rotatable about a longitudinal axis, said assembly comprising: a rotatable body carried on said shaft generally exteriorly of said housing; a spacer disposed about said shaft between said shaft and said housing; and a ring seal disposed about said spacer between said spacer and said housing and including means for forming a first seal with said body and a second seal with said spacer; wherein said body includes a cylindrical flange coaxial with said shaft axis, extending towards said first seal means and having a radially inward surface and a radially outward surface; and wherein said first seal means comprises an annular portion extending towards said body, said annular portion being U-shaped in section and being disposed about said flange, said annular portion having opposing radially facing end surfaces each abutting, respectively, said inward and outward surfaces of said body flange.
Claim 13
Dependent Claim
160 words
A seal assembly for use in conjunction with a housing and a shaft carried on said housing and being rotatable about a longitudinal axis, said assembly comprising: a rotatable body carried on said shaft generally exteriorly of said housing; a spacer disposed about said shaft between said shaft and said housing; and a ring seal disposed about said spacer between said spacer and said housing and including means for forming a first seal with said body and a second seal with said spacer; wherein said body includes a cylindrical flange coaxial with said shaft axis, extending towards said first seal means and having a radially inward surface and a radially outward surface; and wherein said first seal means comprises an annular portion extending towards said body, said annular portion being U-shaped in section and being disposed about said flange, said annular portion having opposing radially facing end surfaces each abutting, respectively, said inward and outward surfaces of said body flange.
Claim 14
Dependent Claim
19 words
The invention according to claim 10, wherein said body comprises a radially inwardly depending annular groove adjacent said flange.
Claim 15
Dependent Claim
21 words
The invention according to claim 10, wherein said second seal means includes a radially outwardly depending annular groove facing said spacer.
Claim 16
Dependent Claim
22 words
The invention according to claim 10, wherein said first seal means includes a segment of said annular portion spaced from said flange.
Claim 17
Dependent Claim
26 words
The invention according to claim 10, wherein said ring seal comprises a metal core and an elastomeric material disposed about at least part of said core.
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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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |