Patent US4336824A successfully refreshed from Google Patents.
US4336824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge valve
Assignee: Parker Hannifin Customer Support Inc
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Filing: 1980-05-29
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Granted: 1982-06-29
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Expires: 2000-05-29
Abstract
Abstract A cartridge valve in which parts made separable for convenience of manufacture and for a use of different materials within the same assembly are interconnected for unitary installation and removal.
Inventors
- 👤 Robert J. Steineman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:56
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K27/00; F16K27/02; F16K27/0209; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6011; Y10T137/7504; Y10T137/7613; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A cartridge valve, including a body providing an axially projecting cylindrical portion, a valve housing mounted to said cylindrical portion as an extension thereof, said valve housing being an element separable from said body and having an outer end providing a radially orienting valve seat, detachable means holding said valve housing and said body in a connected relation, said valve housing having a telescopic fit to said cylindrical portion of said body and said detachable holding means taking the form of a spring clip having bent over ends adapted to enter aligning apertures in telescoping members, a valve contained within the assembly comprised of said body and said housing and including a head portion reciprocable within said valve housing, and a spring urging said valve toward an engagement of said head portion thereof with said valve seat, said spring being effectively interposed between said body and said housing.
Claim 2
Dependent Claim
148 words
A cartridge valve, including a body providing an axially projecting cylindrical portion, a valve housing mounted to said cylindrical portion as an extension thereof, said valve housing being an element separable from said body and having an outer end providing a radially orienting valve seat, detachable means holding said valve housing and said body in a connected relation, said valve housing having a telescopic fit to said cylindrical portion of said body and said detachable holding means taking the form of a spring clip having bent over ends adapted to enter aligning apertures in telescoping members, a valve contained within the assembly comprised of said body and said housing and including a head portion reciprocable within said valve housing, and a spring urging said valve toward an engagement of said head portion thereof with said valve seat, said spring being effectively interposed between said body and said housing.
Claim 3
Dependent Claim
29 words
A cartridge valve according to claim 1, said spring clip having an approximate C-shape and being accommodated in a circular groove in an outer one of the telescoping members.
Claim 4
Dependent Claim
54 words
A cartridge valve according to claim 2, said body having a shoulder to limit inward axial motion of said housing relative to said body, said circular groove in an outer one of the telescoping members aligning with apertured means in an inner one of the telescoping members when said housing seats to said body.
Claim 5
Dependent Claim
56 words
A cartridge valve according to claim 1, and a valve guide based in said body and extending therefrom toward said valve seat, said valve including a stem portion having a sliding mount in said guide and said spring being in a surrounding relation to said guide and bearing at one end on said valve head portion.
Claim 6
Dependent Claim
18 words
A cartridge valve according to claim 4, said valve guide being in an attached relation to said body.
Claim 7
Dependent Claim
56 words
A cartridge valve according to claim 4, said valve guide being a part having a sliding mount in the projecting cylindrical portion of said body and adapted to seat to said body, said spring being interposed to urge said valve toward said valve seat and to urge said valve guide toward a seat on said body.
Claim 8
Dependent Claim
57 words
A cartridge valve as in claim 1, adjacent ends of said valve housing and said cylindrical portion of said body overlapping and said spring clip being installed in and removed from said overlapping ends as an element separate from said body and valve housing, said valve housing being elongated relative to said cylindrical portion of said body.
Claim 9
Dependent Claim
58 words
A cartridge valve as in claim 1, adjacent ends of said valve housing and said cylindrical portion of said body overlapping and said spring clip being installed in and removed from said overlapping ends as an element separate from said body and valve housing, said cylindrical portion of said valve body being elongated relative to said valve housing.
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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |