US4126316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of installing shaft seal with reformable shell
Assignee: Garlock Inc
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Filing: 1977-05-02
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Granted: 1978-11-21
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Expires: 1997-05-02
Abstract
Abstract A shaft seal with a reformable shell and a seal lip which can be readily installed over a roughened, enlarged or irregular portion of a shaft and then be reformed so that the sealing lip is brought into proper sealing engagement with the shaft.
Inventors
- 👤 Douglas A. Cather, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:00
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3268; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49908; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A method of installing a shaft seal in a machine housing after passing said seal over an obstruction on a shaft comprising: (a) providing annular seal means with a resilient reformable seal element having a sealing lip with an as formed I.D. greater than the maximum O.D. of said obstruction, (b) passing said seal means axially over said obstruction, (c) reforming at least a portion of said seal element by engagement with a portion of said machine housing during installation in said housing to reduce the I.D. of said sealing lip, thus (d) causing said sealing lip to sealingly engage said shaft.
Claim 2
Independent Claim
102 words
A method of installing a shaft seal in a machine housing after passing said seal over an obstruction on a shaft comprising: (a) providing annular seal means with a resilient reformable seal element having a sealing lip with an as formed I.D. greater than the maximum O.D. of said obstruction, (b) passing said seal means axially over said obstruction, (c) reforming at least a portion of said seal element by engagement with a portion of said machine housing during installation in said housing to reduce the I.D. of said sealing lip, thus (d) causing said sealing lip to sealingly engage said shaft.
Claim 3
Dependent Claim
30 words
The method according to claim 1 wherein said seal means includes a seal shell with a reformable portion and said reforming step includes reforming said reformable portion of said shell.
Claim 4
Dependent Claim
54 words
The method according to claim 2 wherein said reforming step includes pressing said reformable portion of said seal means axially into a machine housing and against a generally radial portion of said machine housing, and reforming at least a portion of said seal shell from a partially axial orientation to a generally radial orientation.
Claim 5
Independent Claim
101 words
A method of installing a shaft seal in a machine housing comprising: (a) providing annular seal means with a resilient seal element having a reformable portion including a sealing lip with an as formed diameter greater than its intended operating diameter, (b) pressing said seal means axially into a bore in said machine housing, and (c) reforming at least a portion of said seal element by engagement with a portion of said machine housing during installation in said housing to reduce the diameter of said sealing lip to its intended operating diameter in sealing engagement with a shaft to be sealed.
Claim 6
Independent Claim
101 words
A method of installing a shaft seal in a machine housing comprising: (a) providing annular seal means with a resilient seal element having a reformable portion including a sealing lip with an as formed diameter greater than its intended operating diameter, (b) pressing said seal means axially into a bore in said machine housing, and (c) reforming at least a portion of said seal element by engagement with a portion of said machine housing during installation in said housing to reduce the diameter of said sealing lip to its intended operating diameter in sealing engagement with a shaft to be sealed.
Claim 7
Dependent Claim
30 words
The method according to claim 4 wherein said seal means includes a seal shell with a reformable portion and said reforming step includes reforming said reformable portion of said shell.
Claim 8
Dependent Claim
48 words
The method according to claim 5 wherein said reforming step includes pressing said reformable portion of said seal means against a generally radial portion of said machine housing and reforming at least a portion of said seal shell from a partially axial orientation to a generally radial orientation.
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) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |