Patent US4942899A successfully refreshed from Google Patents.
US4942899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge pressure regulator
Assignee: Graco Inc
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Filing: 1989-07-10
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Granted: 1990-07-24
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Expires: 2009-07-10
Abstract
Abstract A fluid pressure regulator is designed with a removable cartridge in which all of the wetted parts of the regulator which are subject to wear by the fluid may be removed from the housing of the regulator without detaching the housing from the plumbing to which it is attached. The valve and valve actuator are designed so as to encourage relatively high velocity fluid flow there through so as to prevent clogging and settling of material therein. The valve actuator is also designed to produce divergent flow outwardly to the diaphragm perimeter preventing clogging and setting of material therein.
Inventors
- 👤 William D. Vork
- 👤 James H. Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:47
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7613; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
A fluid pressure regulator comprising a housing having an inlet and outlet, a diaphragm, a ball, a ball retainer, a seat, a valve actuator means for biasing said diaphragm, the improvement comprising: a cartridge member removably retained in said housing, said ball, said ball retainer and said seat being located in said cartridge member such that said cartridge member containing said ball, said ball retainer, said seat and may all be removed from said housing, as a unit; a diaphragm chamber containing said diaphragm and said actuator, said inlet connecting to said chamber and sized so as to maintain flow velocity through said regulator as a relatively high level and directing said flow through said chamber so as to continually flush said chamber, said actuator comprising a head having a diaphragm side and a stem side, said diaphragm comprising a perimeter and said actuator stem side comprises a diametral angular rib for directing flow through said chamber to said perimeter.
Claim 2
Dependent Claim
160 words
A fluid pressure regulator comprising a housing having an inlet and outlet, a diaphragm, a ball, a ball retainer, a seat, a valve actuator means for biasing said diaphragm, the improvement comprising: a cartridge member removably retained in said housing, said ball, said ball retainer and said seat being located in said cartridge member such that said cartridge member containing said ball, said ball retainer, said seat and may all be removed from said housing, as a unit; a diaphragm chamber containing said diaphragm and said actuator, said inlet connecting to said chamber and sized so as to maintain flow velocity through said regulator as a relatively high level and directing said flow through said chamber so as to continually flush said chamber, said actuator comprising a head having a diaphragm side and a stem side, said diaphragm comprising a perimeter and said actuator stem side comprises a diametral angular rib for directing flow through said chamber to said perimeter.
Claim 3
Dependent Claim
146 words
A fluid pressure regulator comprising a housing having an inlet and outlet, a diaphragm, a ball, a ball retainer, a seat, a valve actuator means for biasing said diaphragm, the improvement comprising: a cartridge member removably retained in said housing, said ball, said ball retainer and said seat being located in said cartridge member such that said ball said retainer, said seat and said member may be removed from said housing as a unit; and a diaphragm chamber containing said diaphragm and said actuator, said actuator comprising: a heat having a diaphragm side and a stem side, said actuator stem side comprising a diametral rib for directing flow through said chamber, said inlet connecting to said chamber and sized so as to maintain flow velocity through said regulator as a relatively high level and directing said flow through said chamber so as to flush said chamber.
Claim 4
Dependent Claim
146 words
A fluid pressure regulator comprising a housing having an inlet and outlet, a diaphragm, a ball, a ball retainer, a seat, a valve actuator means for biasing said diaphragm, the improvement comprising: a cartridge member removably retained in said housing, said ball, said ball retainer and said seat being located in said cartridge member such that said ball said retainer, said seat and said member may be removed from said housing as a unit; and a diaphragm chamber containing said diaphragm and said actuator, said actuator comprising: a heat having a diaphragm side and a stem side, said actuator stem side comprising a diametral rib for directing flow through said chamber, said inlet connecting to said chamber and sized so as to maintain flow velocity through said regulator as a relatively high level and directing said flow through said chamber so as to flush said chamber.
References Cited (Backward Citations)
US585132A
Cited
US1476253A
Cited
DE664158C
Cited
US2160849A
Cited
US2272243A
Cited
US2702561A
Cited
US3139902A
Cited
US3250288A
Cited
US3552431A
Cited
US3698420A
Cited
US3791412A
Cited
US4190075A
Cited
US4474207A
Cited
US4741359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-23 | 1994-01-22 | 1994-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-23 | 1998-01-22 | 1998-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-23 | 2002-01-22 | 2002-07-24 | $7700.00 | Window Closed / Lapsed |