Patent US4560329A successfully refreshed from Google Patents.
US4560329A
Expired / Lapsed
US
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Strainer device for rotary compressor
Assignee: Mitsubishi Electric Corp
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Filing: 1984-06-15
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Granted: 1985-12-24
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Expires: 2004-06-15
Abstract
Abstract A strainer device for a rotary type compressor includes a rolling piston which rotates with rotation of a rotational shaft, a cylinder plate provided in correspondence to the direction of the outer periphery of the rolling piston, a pair of side plates supporting the rotational shaft, and disposed on both side surfaces of the cylinder plate to define a compression chamber. A suction pipe passes through a shell housing with one end thereof being connected with a suction port formed in one of the side plates to introduce intake gas. A communication path leads the intake gas from the suction port to the compression chamber and a strainer removes foreign substances contained in the intake gas, the strainer being provided in a path formed in the cylinder plate or the side plate, not in the suction pipe, through which the intake gas flows.
Inventors
- 👤 Takuho Hirahara
- 👤 Fumiaki Sano
- 👤 Koji Ishijima
- 👤 Susumu Kawaguchi
- 👤 Kazuhiro Nakane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:55
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/12; F04C18/00; F04C18/30; F04C18/34; F04C18/356; F04C18/3562; F04C18/3564; F04C29/0092; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
200 words
A strainer device for a rotary type compressor, which comprises, in combination: a rotational shaft; a rolling piston which rotates with rotation of said rotational shaft; a cylinder plate provided in correspondence to the direction of the outer periphery of said rolling piston; a pair of side plates supporting said rotational shaft, and being disposed on both side surfaces of said cylinder plate to define a compression chamber; a shell housing; a suction pipe passing through said shell housing with one end thereof being connected with a suction port formed in one of said side plates to introduce intake gas; a communication path for leading said intake gas from said suction port to said compression chamber, said communication path including an enlarged diameter portion in one of said cylinder plate and said side plate, said enlarged diameter portion having one end defined by a joint between said cylinders plate and said side plate; and a strainer for removing foreign substances contained in the intake gas, said strainer being provided in said enlarged diameter portion, said strainer having a caulking fitting larger than said communication path and fitting into said enlarged diameter portion so as to fix said strainer in position.
Claim 2
Dependent Claim
200 words
A strainer device for a rotary type compressor, which comprises, in combination: a rotational shaft; a rolling piston which rotates with rotation of said rotational shaft; a cylinder plate provided in correspondence to the direction of the outer periphery of said rolling piston; a pair of side plates supporting said rotational shaft, and being disposed on both side surfaces of said cylinder plate to define a compression chamber; a shell housing; a suction pipe passing through said shell housing with one end thereof being connected with a suction port formed in one of said side plates to introduce intake gas; a communication path for leading said intake gas from said suction port to said compression chamber, said communication path including an enlarged diameter portion in one of said cylinder plate and said side plate, said enlarged diameter portion having one end defined by a joint between said cylinders plate and said side plate; and a strainer for removing foreign substances contained in the intake gas, said strainer being provided in said enlarged diameter portion, said strainer having a caulking fitting larger than said communication path and fitting into said enlarged diameter portion so as to fix said strainer in position.
Claim 3
Dependent Claim
27 words
The strainer device for the rotary type compressor according to claim 1, wherein said suction pipe is constructed in a substantially rectilinear form over its entire length.
Claim 4
Dependent Claim
35 words
The strainer device for the rotary type compressor according to claim 1, wherein said suction pipe is disposed substantially in parallel with the axial direction of said rotational shaft, on which said piston is provided.
Claim 5
Dependent Claim
23 words
The strainer device for the rotary type compressor according to claim 1, wherein said enlarged diameter portion is formed in said cylinder plate.
Claim 6
Dependent Claim
22 words
The strainer device for the rotary type compressor according to claim 1, wherein said enlarged portion is formed in said side plate.
Claim 7
Dependent Claim
26 words
The strainer device for the rotary type compressor according to claim 4 or 5, wherein said strainer is in one of a cup-shape and a flat-shape.
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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) | 1988-12-23 | 1989-06-24 | 1989-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-23 | 1993-06-24 | 1993-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-23 | 1997-06-24 | 1997-12-24 | $7700.00 | Window Closed / Lapsed |