Patent US3811468A successfully refreshed from Google Patents.
US3811468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor valve assembly
Assignee: Fedders Corp
•
Filing: 1973-06-08
•
Granted: 1974-05-21
•
Expires: 1993-06-08
Abstract
Abstract A valve chamber in a compressor housing is formed by opposing walls, one of which has a port formed therein for allowing gas to enter the valve chamber. A resilient U-shaped reed is disposed between the opposed walls, said reed having a first end portion adapted to cover the port and a second end portion which is held stationary against the wall opposite the port. A backer plate is positioned between the first and second end portions to intercept the movement of the first end portion and limit the flexure of the reed.
Inventors
- 👤 F Bellmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:03
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1073; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K15/16; F16K15/162; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/7879; Y10T137/7888; Y10T137/7891; Y10T137/7892
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
154 words
A compressor valve assembly for opening and closing a port formed in a compressor housing comprising: a valve chamber in said housing, said chamber including a first wall containing said port and a second wall containing an opening therein; a folded resilient reed having first and second end portions and a curved portion therebetween, said reed being formed and arranged so that the first end portion seats on said first wall to close said port, the second end portion seats on said second wall and the curved portion is adapted to flex so that the first end portion moves in a direction away from said first wall and towards said second wall to open said port; means for holding the second end portion stationary; a seperable backer plate disposed to intercept the movement of said first end portion thereby limiting the flexure of said curved portion; and, means for holding the backer plate stationary.
Claim 2
Dependent Claim
154 words
A compressor valve assembly for opening and closing a port formed in a compressor housing comprising: a valve chamber in said housing, said chamber including a first wall containing said port and a second wall containing an opening therein; a folded resilient reed having first and second end portions and a curved portion therebetween, said reed being formed and arranged so that the first end portion seats on said first wall to close said port, the second end portion seats on said second wall and the curved portion is adapted to flex so that the first end portion moves in a direction away from said first wall and towards said second wall to open said port; means for holding the second end portion stationary; a seperable backer plate disposed to intercept the movement of said first end portion thereby limiting the flexure of said curved portion; and, means for holding the backer plate stationary.
Claim 3
Dependent Claim
87 words
A compressor valve as described in claim 1 wherein the means for holding the second end portion stationary and the means for holding the backer plate stationary comprises said chamber, which includes, in addition to said first wall and said second wall at least a third wall formed at right angles to said first and second walls at a point remote from said port, said backer plate engaging the second wall at at least two positions and the third wall at a position remote from the port.
Claim 4
Dependent Claim
21 words
A compressor valve as disclosed in claim 1 wherein the backer plate is disposed between said first and second end portions.
Claim 5
Dependent Claim
24 words
A compressor valve as described in claim 3 wherein the backer plate engages the second end portion to hold the second end portion stationary.
Claim 6
Dependent Claim
22 words
A compressor valve as deScribed in claim 4 wherein the backer plate is attached to the second end portion of the reed.
Claim 7
Dependent Claim
32 words
A compressor valve as described in claim 4 wherein the second end portion of the resilient reed has a tongue formed thereon for engagement with a groove formed in the backer plate.
Claim 8
Dependent Claim
63 words
A compressor valve as described in claim 1 wherein the first end portion and the backer plate each have a flat surface, the flat surface of the backer plate being disposed at an angle with respect to said first end portion so as to intercept the flat surface of the first end portion when the curved portion flexes through a predetermined maximum angle.
Claim 9
Dependent Claim
20 words
A compressor valve as described in claim 1 wherein the first end portion is enlarged to cover an enlarged port.
Claim 10
Dependent Claim
17 words
A compressor valve as described in claim 1 wherein the resilient reed has a U-shaped cross section.
Claim 11
Dependent Claim
96 words
A compressor valve as described in claim 1 wherein the second end portion extends beyond the first end portion and has a curved portion so that the second end portion returns to a position adjacent the first end portion, said second end portion being formed and arranged to seat on said compressor housing and to close a second port formed therein, said second curved portion is adapted to flex in a direction away from said housing to open said second port and the backer plate also disposed to intercept the movement of said second end portion.
Claim 12
Dependent Claim
46 words
A compressor valve as described in claim 1 wherein the backer plate has a central portion disposed between said first and second end portions and a bifurcated portion extending on each side of the curved portion of the reed so as to engage the valve chamber.
Claim 13
Dependent Claim
24 words
A compressor valve as described in claim 11 wherein the backer plate engages the second end portion for holding the second end portion stationary.
References Cited (Backward Citations)
US756869A
Cited
US978152A
Cited
US1637821A
Cited
US1672125A
Cited
US2065062A
Cited
US2118356A
Cited
US2599499A
Cited
US3568712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |