US3565100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible self-cleaning cartridge valve
Assignee: MEC O MATIC Inc
•
Filing: 1968-12-23
•
Granted: 1971-02-23
•
Expires: 1988-12-23
Abstract
Abstract A reversible self-contained cartridge valve that is utilized as an inlet and outlet valve upon reversing the position of certain of the parts consisting of a hollow housing having a valve seat and a slidable valve body in the housing with a companion valve seat and O-ring positioned thereon and a spring urging the valve body into a closed position wherein the valve body operates as an inlet valve; the cartridge valve being further provided with a hollow plug having a valve seat identical to that of the housing valve seat whereupon the reversing of the valve body and spring in the housing the cartridge valve will operate as an outlet valve.
Inventors
- 👤 Robert K Pfleger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:06
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/025; F16K15/026; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5153; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7939
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
323 words
A reversible self-contained cartridge valve comprising a substantially cylindrical housing having a plurality of communicating passageways disposed along the full length thereof, one of said passageways being larger in diameter than an adjoining passageway forming a peripheral shoulder member, first valve seat means positioned on said shoulder member, valve means slidably mounted in the larger of said passageways, said valve means having a valve body member, an O-ring positioned about said valve body member and engaging said first valve seat means, second valve seat means positioned on said valve body member and engaging said O-ring for sealing said passageways against flow of fluid therethrough, valve guide means mounted on said valve body and slidably positioned in the smaller of said passageways, plug means extending into said larger of said passageways, said plug means having a passageway substantially equal in diameter to that of said smaller passageway, spring means extending between said plug means and said valve body member yieldingly maintaining said first valve seat means and said second valve seat means in frictional engagement with said O-ring so as to seal against flow of fluid in one direction through said passageways and third valve seat means mounted on said plug means, said third valve seat means being substantially identical and in opposing relation to said first valve seat means whereby upon reversing the position of said valve Means said valve guide means is slidably mounted in said passageway in said plug means and said spring means extends between said valve body member and said shoulder member yieldably maintains said second valve seat means and said third valve seat means in frictional engagement with said O-ring for sealing against flow of fluid in the opposite direction through said passageway, said first and third valve seat means having an outer and inner wall portion of substantially identical dimensions extending at an oblique angle toward each other and forming a first crest portion at their juncture.
Claim 2
Dependent Claim
323 words
A reversible self-contained cartridge valve comprising a substantially cylindrical housing having a plurality of communicating passageways disposed along the full length thereof, one of said passageways being larger in diameter than an adjoining passageway forming a peripheral shoulder member, first valve seat means positioned on said shoulder member, valve means slidably mounted in the larger of said passageways, said valve means having a valve body member, an O-ring positioned about said valve body member and engaging said first valve seat means, second valve seat means positioned on said valve body member and engaging said O-ring for sealing said passageways against flow of fluid therethrough, valve guide means mounted on said valve body and slidably positioned in the smaller of said passageways, plug means extending into said larger of said passageways, said plug means having a passageway substantially equal in diameter to that of said smaller passageway, spring means extending between said plug means and said valve body member yieldingly maintaining said first valve seat means and said second valve seat means in frictional engagement with said O-ring so as to seal against flow of fluid in one direction through said passageways and third valve seat means mounted on said plug means, said third valve seat means being substantially identical and in opposing relation to said first valve seat means whereby upon reversing the position of said valve Means said valve guide means is slidably mounted in said passageway in said plug means and said spring means extends between said valve body member and said shoulder member yieldably maintains said second valve seat means and said third valve seat means in frictional engagement with said O-ring for sealing against flow of fluid in the opposite direction through said passageway, said first and third valve seat means having an outer and inner wall portion of substantially identical dimensions extending at an oblique angle toward each other and forming a first crest portion at their juncture.
Claim 3
Dependent Claim
72 words
The structure as recited by claim 1 wherein said second valve seat means having a second crest portion in opposing relation to said one of said first crest portions but slightly smaller in diameter than said first crest portions whereby upon the frictional engagement of said first and second crest portions with said O-ring, a rubbing action is effected and the surface of said O-ring is thereby cleaned of any foreign matter.
Claim 4
Dependent Claim
56 words
The structure as recited by claim 2 wherein said valve body member comprises a cylindrical portion with said O-ring engaging said cylindrical portion, and finger portions extending peripherally of said cylindrical portion in a direction opposite of said valve guide means, said finger portions being spaced from each other to permit the flow of fluid therethrough.
Claim 5
Dependent Claim
171 words
A valve comprising a housing having a passageway therein, a valve body member having an open position permitting fluid flow through said passageway and a closed position preventing fluid flow through said passageway, first seat means associated with said housing, second seat means associated with said valve body member, resilient sealing means positioned between said first and second seat means so as to frictionally contact said first and second seat means when said valve body member is in said closed position, said first seat means having a first crest portion thereon, said second seat means having a second crest portion thereon in opposing relation to said first crest portion and positioned such that a plane passing through said first crest portion is offset from a plane passing through said second crest portion whereby upon the frictional engagement of said first and second crest portions when said resilient means, a rubbing action against said resilient means is effected and the surface of said resilient means is thereby cleaned of any foreign matter.
Claim 6
Dependent Claim
171 words
A valve comprising a housing having a passageway therein, a valve body member having an open position permitting fluid flow through said passageway and a closed position preventing fluid flow through said passageway, first seat means associated with said housing, second seat means associated with said valve body member, resilient sealing means positioned between said first and second seat means so as to frictionally contact said first and second seat means when said valve body member is in said closed position, said first seat means having a first crest portion thereon, said second seat means having a second crest portion thereon in opposing relation to said first crest portion and positioned such that a plane passing through said first crest portion is offset from a plane passing through said second crest portion whereby upon the frictional engagement of said first and second crest portions when said resilient means, a rubbing action against said resilient means is effected and the surface of said resilient means is thereby cleaned of any foreign matter.
Claim 7
Dependent Claim
16 words
A valve as defined in claim 4, wherein said resilient sealing means consists of an O-ring.
Claim 8
Dependent Claim
183 words
A valve comprising a substantially cylindrical housing having a plurality of communicating passageways disposed along the full length thereof, one of said passageways being larger in diameter than an adjoining passageway forming a peripheral shoulder member, first valve seat means positioned on said shoulder member, valve means slidably mounted in the larger of said passageways, an O-ring positioned about said valve member and engaging said first valve seat means, and second valve seat means positioned on said valve member and engaging said O-ring for sealing said passageways against flow of fluid therethrough, said first valve seat means having an outer and inner wall portion extending at an oblique angle toward each other and forming a first crest portion at their juncture, a said second valve seat means having a second crest portion in opposing relation to said first crest portion but slightly smaller in diameter than said first crest portion whereby upon the frictional engagement of said first and second crest portions with said O-ring, a rubbing action is effected and the surface of said O-ring is thereby cleaned of any foreign matter.
Claim 9
Dependent Claim
183 words
A valve comprising a substantially cylindrical housing having a plurality of communicating passageways disposed along the full length thereof, one of said passageways being larger in diameter than an adjoining passageway forming a peripheral shoulder member, first valve seat means positioned on said shoulder member, valve means slidably mounted in the larger of said passageways, an O-ring positioned about said valve member and engaging said first valve seat means, and second valve seat means positioned on said valve member and engaging said O-ring for sealing said passageways against flow of fluid therethrough, said first valve seat means having an outer and inner wall portion extending at an oblique angle toward each other and forming a first crest portion at their juncture, a said second valve seat means having a second crest portion in opposing relation to said first crest portion but slightly smaller in diameter than said first crest portion whereby upon the frictional engagement of said first and second crest portions with said O-ring, a rubbing action is effected and the surface of said O-ring is thereby cleaned of any foreign matter.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |