Patent US3976341A successfully refreshed from Google Patents.
US3976341A
Expired / Lapsed
US
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Seal
Assignee: Old Carco LLC
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Filing: 1975-07-21
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Granted: 1976-08-24
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Expires: 1995-07-21
Abstract
Abstract Seal having an annular-shaped carbon ring, a bellows adjacent the carbon ring and a retainer surrounding both. A spring drivingly connects the retainer with another larger retainer which surrounds the seal.
Inventors
- 👤 Larry Leroy Colley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:06
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/122; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
152 words
A gas seal for an automotive compressor having a housing end wall, a shaft extending through said end wall, and a bearing in said end wall rotatably supporting said shaft therein, said shaft having an oil passage therein adapted through which oil flows upon rotation of said shaft, said seal including a cup-shaped retainer arm annular stationary member frictionally engaging said end wall, an annular carbon member drivingly connected to said shaft, a carbon retainer drivingly connected to said carbon member, a spring extending between and drivingly connecting said carbon retainer and said cup-shaped retainer, said cup-shaped retainer, and said stationary member having overlapping lip means, the lip means on said cup-shaped retainer inhibiting the removal of said stationary member from the seal and for also causing oil flowing from said passage to flow in contact with said carbon retainer and said lip means on said stationary member to remove heat therefrom.
Claim 2
Dependent Claim
152 words
A gas seal for an automotive compressor having a housing end wall, a shaft extending through said end wall, and a bearing in said end wall rotatably supporting said shaft therein, said shaft having an oil passage therein adapted through which oil flows upon rotation of said shaft, said seal including a cup-shaped retainer arm annular stationary member frictionally engaging said end wall, an annular carbon member drivingly connected to said shaft, a carbon retainer drivingly connected to said carbon member, a spring extending between and drivingly connecting said carbon retainer and said cup-shaped retainer, said cup-shaped retainer, and said stationary member having overlapping lip means, the lip means on said cup-shaped retainer inhibiting the removal of said stationary member from the seal and for also causing oil flowing from said passage to flow in contact with said carbon retainer and said lip means on said stationary member to remove heat therefrom.
Claim 3
Dependent Claim
38 words
A gas seal set forth in claim 1 wherein said carbon retainer has a projection thereon, said cup-shaped retainer having a projection on its bottom, said spring engaging said projections to provide said driving connection between said retainers.
Claim 4
Dependent Claim
50 words
A gas seal as set forth in claim 1 further, including an annular resilient bellows, said carbon retainer having an axial portion and a radially extending portion at one end of said axial portion, said radial portion clamping said bellows to said carbon member under the influence of said spring.
Claim 5
Dependent Claim
48 words
A gas seal as set forth in claim 3 including a second radially extending portion at the other end of said axial portion, said second portion extending radially outward from said axial portion, said spring extending between said second radially extending portion and the bottom of said cup.
Claim 6
Dependent Claim
61 words
A gas seal as set forth in claim 3 further including a second axially extending portion extending axially from the end of said radially extending portion opposite the end at which said radial portion is connected to said first mentioned axial portion, said bellow having an annular ring member therearound, and said second axially extending portion engaging said annular ring member.
Claim 7
Dependent Claim
50 words
A gas seal as set forth in claim 2 further, including an annular resilient bellows, said carbon retainer having an axial portion and a radially extending portion at one end of said axial portion, said radial portion clamping said bellows to said carbon member under the influence of said spring.
Claim 8
Dependent Claim
48 words
A gas seal as set forth in claim 6 including a second radially extending portion at the other end of said axial portion, said second portion extending radially outward from said axial portion, said spring extending between said second radially extending portion and the bottom of said cup.
Claim 9
Dependent Claim
61 words
A gas seal as set forth in claim 6 further including a second axially extending portion extending axially from the end of said radially extending portion opposite the end at which such radial portion is connected to said first mentioned axial portion, said bellow having an annular ring member therearound, and said second axially extending portion engaging said annular ring member.
Claim 10
Dependent Claim
21 words
A gas seal as set forth in claim 1 wherein said stationary member includes an 0-ring frictionally engaging said end wall.
Claim 11
Dependent Claim
49 words
A gas seal as set forth in claim 9 further, including annular resilient bellows, said carbon retainer having an axial portion and a radially extending portion at one end of said axial portion, said radial portion clamping said bellows to said carbon member under the influence of said spring.
References Cited (Backward Citations)
US3770991A
Cited
US3869131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |