Patent US3746375A successfully refreshed from Google Patents.
Patent US4039002A successfully refreshed from Google Patents.
US4039002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas compressor valve
Assignee: Individual
•
Filing: 1976-05-28
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Granted: 1977-08-02
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Expires: 1996-05-28
Abstract
Abstract The invention essentially comprises a compressor valve wherein the area of the tapered port in the inlet seat is larger than the area of the exhaust ports in the plate and guard. In addition, the exhaust ports are formed in the plate and guard around the respective inlet ports in the form of a staggered annulus. The larger open area in the seat enables the plate to be opened with lower pressure and the staggered annulus configuration produces substantially more open area through the valve for reduced plate lift and improved breathing. There is also disclosed a second embodiment of the invention which utilizes tabs for aligning and guiding a movable and flexible disc between the seat and guard without the use of alignment pins and valve springs.
Inventors
- 👤 Fred K. Broyan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:43
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1073; F04B39/108; F16; F16K; F16K15/00; F16K15/02; F16K15/08; F16K17/00; F16K17/02; F16K17/04; F16K17/0413; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7861; Y10T137/7862; Y10T137/7879; Y10T137/7888
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
A valve assembly for a piston type compressor comprising: (a) a valve seat and valve guard in spaced relationship to said valve seat; (b) a valve plate located between the valve seat and valve guard wherein said plate quiescently rests on said seat, and moves away from said seat and toward said guard when a pressurized gas passes through said valve from said compressor; (c) a plurality of tapered inlet ports in said valve seat positioned through the said seat; (d) a plurality of exhaust ports in said plate and guard which are in registry, and which are of smaller diameter than said seat ports; (e) said plate and guard ports being arranged around respective seat ports such that six exhaust ports are provided around each inlet port at 60° intervals.
Claim 2
Dependent Claim
131 words
A valve assembly for a piston type compressor comprising: (a) a valve seat and valve guard in spaced relationship to said valve seat; (b) a valve plate located between the valve seat and valve guard wherein said plate quiescently rests on said seat, and moves away from said seat and toward said guard when a pressurized gas passes through said valve from said compressor; (c) a plurality of tapered inlet ports in said valve seat positioned through the said seat; (d) a plurality of exhaust ports in said plate and guard which are in registry, and which are of smaller diameter than said seat ports; (e) said plate and guard ports being arranged around respective seat ports such that six exhaust ports are provided around each inlet port at 60° intervals.
Claim 3
Dependent Claim
164 words
The valve assembly of claim 1 which comprises: (a) a valve seat and a valve guard in spaced relationship to said valve seat; (b) a valve plate located between the valve seat and valve guard wherein, in the quiescent state, said plate rests on said seat and moves away from said seat and toward said guard when a pressurized gas passes through said valve from said compressor; (c) a plurality of tapered inlet ports in said valve seat which are all of equal size; (d) a plurality of exhaust ports in said plate and guard which are in registry and which are of smaller diameter than said seat ports; (e) said plate and guard ports being arranged around respective seat ports in the form of a staggered annulus; such that when a pressurized gas flows through said seat port it causes the plate to move from said seat to said guard and said gas is rapidly expelled with minimum turbulence into the exhaust ports.
Claim 4
Dependent Claim
19 words
The valve assembly in accordance with claim 2 wherein said staggered annulus is in the shape of a hexagon.
Claim 5
Dependent Claim
19 words
The valve assembly in accordance with claim 2 wherein said inlet ports are tapered to provide a Venturi effect.
Claim 6
Dependent Claim
19 words
The valve assembly in accordance with claim 2 wherein pre-loaded springs are coupled to said plate around its periphery.
Claim 7
Dependent Claim
175 words
The valve assembly for a piston type compressor comprising: (a) a valve seat and a valve guard in spaced relationship to said valve seat; (b) a flexible valve plate located between the valve seat and valve guard; (c) said plate being held in position by elongated tabs formed into the plate and which fit into the guard, (d) said tabs having a length which corresponds to the desired spring pre-load on said plate; (e) a plurality of inlet ports spaced in the valve seat which are of equal size; (f) a plurality of exhaust ports which are in registry in said plate and guard and which are of smaller diameter than said seat ports; (g) said plate and guard ports being arranged around respective seat ports in the form of a staggered annulus, such that when a pressurized gas flows through said seat port it causes said plate to flex when the gas exceeds the spring pre-load of said tabs; said gas being rapidly expelled through said valve with minimum turbulence into the exhaust ports.
Claim 8
Dependent Claim
175 words
The valve assembly for a piston type compressor comprising: (a) a valve seat and a valve guard in spaced relationship to said valve seat; (b) a flexible valve plate located between the valve seat and valve guard; (c) said plate being held in position by elongated tabs formed into the plate and which fit into the guard, (d) said tabs having a length which corresponds to the desired spring pre-load on said plate; (e) a plurality of inlet ports spaced in the valve seat which are of equal size; (f) a plurality of exhaust ports which are in registry in said plate and guard and which are of smaller diameter than said seat ports; (g) said plate and guard ports being arranged around respective seat ports in the form of a staggered annulus, such that when a pressurized gas flows through said seat port it causes said plate to flex when the gas exceeds the spring pre-load of said tabs; said gas being rapidly expelled through said valve with minimum turbulence into the exhaust ports.
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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |