US3830253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor valve apparatus
Assignee: Trane US Inc
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Filing: 1973-02-12
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Granted: 1974-08-20
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Expires: 1993-02-12
Abstract
Abstract A refrigeration compressor is shown having a thin annular resilient intake valve which has no support ears and which is restrained within a valve cage having a valve stop surface conforming to a cylinder to limit maximum stress and thereby enhance reliability.
Inventors
- 👤 C Speich
- 👤 J Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1073; F04B39/1086; F04B39/12; F16; F16K; F16K15/00; F16K15/14; F16K17/00; F16K17/02; F16K17/04; F16K17/044; F16K15/141; F16K15/142; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7861; Y10T137/7862; Y10T137/7863; Y10T137/7864
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
62 words
Compressor apparatus including in combination a thin resilient annular valve; a valve seat disposed in face-to-face abutting relationship with one side of said valve in its fully closed position; a valve stop having a curved substantially cylindrical concave surface disposed to abut in face-to-face relation the other side of said valve in its fully open position substantially throughout a substantially annular area.
Claim 2
Dependent Claim
62 words
Compressor apparatus including in combination a thin resilient annular valve; a valve seat disposed in face-to-face abutting relationship with one side of said valve in its fully closed position; a valve stop having a curved substantially cylindrical concave surface disposed to abut in face-to-face relation the other side of said valve in its fully open position substantially throughout a substantially annular area.
Claim 3
Dependent Claim
17 words
The apparatus as defined by claim 1 wherein said surface conforms substantially to a right circular cylinder.
Claim 4
Dependent Claim
32 words
The apparatus as defined by claim 2 wherein said annular valve is circular and said right circular cylinder has a radius between 9 and 20 times the outer radius of said valve.
Claim 5
Dependent Claim
92 words
Compressor apparatus including in combination a thin resilient annular valve; an annular valve seat adjacent one face of said valve; means for rotatably positioning said valve in face-to-face relationship with said valve seat; said valve positioning means including a valve stop means haVing a fixed curved surface disposed in face-to-face relationship with the other face of said valve for abutting said other face of said valve along an inflection free curved face of said valve in the fully open position, said fixed curved surface being deflection free in at least one plane.
Claim 6
Dependent Claim
92 words
Compressor apparatus including in combination a thin resilient annular valve; an annular valve seat adjacent one face of said valve; means for rotatably positioning said valve in face-to-face relationship with said valve seat; said valve positioning means including a valve stop means haVing a fixed curved surface disposed in face-to-face relationship with the other face of said valve for abutting said other face of said valve along an inflection free curved face of said valve in the fully open position, said fixed curved surface being deflection free in at least one plane.
Claim 7
Dependent Claim
14 words
The apparatus as defined by claim 4 wherein said curved surface is substantially cylindrical.
Claim 8
Dependent Claim
13 words
The apparatus as defined by claim 5 wherein said curved surface is concave.
Claim 9
Dependent Claim
18 words
The apparatus as defined by claim 4, wherein said curved surface conforms substantially to a right circular cylinder.
Claim 10
Dependent Claim
32 words
The apparatus as defined by claim 7 wherein said annular valve is circular and said right circular cylinder has a radius between 9 and 20 times the outer radius of said valve.
Claim 11
Dependent Claim
37 words
The apparatus as defined by claim 4 wherein said valve stop means includes means adjacent the outer edge of said valve for restraining said valve against substantially lateral movement parallel to the plane of said valve seat.
Claim 12
Dependent Claim
26 words
The apparatus as defined by claim 9 wherein the outer edge of said valve is substantially circular and in abutting relationship with said last named means.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |