US3796228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve
Assignee: Individual
•
Filing: 1972-08-25
•
Granted: 1974-03-12
•
Expires: 1992-08-25
Abstract
Abstract The specification and drawings disclose a relief valve which is particularly suited for high pressure use. The disclosed valve includes a housing with a longitudinal inlet passage and a laterally extending discharge passage. The inlet passage is counterbored to a larger diameter inwardly of one end to a point slightly past the intersection of the outlet passage. The shoulder formed at the end of the counterbore defines a seat which cooperates with a cylindrical valve member slidingly received in the counterbore. The end of the valve which engages the seat is conical and the other end has a reduced diameter portion which serves as a guide stem. A guide member slidably receives the guide stem and is adjustably connected to the housing. A compression spring is positioned about the guide stem between the valve member and the underside of the guide member. In the embodiment shown, the guide member is connected to the housing by a bonnet nut so that by adjusting the bonnet nut, the spring pressure can be varied to vary the valve setting.
Inventors
- 👤 A Bedo
- 👤 E Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:20
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7923; Y10T137/7929; Y10T137/7934
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
244 words
A relief valve comprising: a housing having a first passage formed longitudinally therethrough and a second passage extending laterally into the housing into flow relationship with the first passage, said first passage being counterbored to a larger diameter inwardly from one end to a point slightly past the intersection of the second passage to define an internal valve chamber, a juncture between the counterbored portion and the remainder of the first passage defining an annular shoulder which serves as a valve seat; a valve member slidably carried within the counterbored portion of the first passage and having a cylindrical body closely received in the counterbore and having a circumferential groove which carries a seal ring, the end of the body facing said annular shoulder having a portion adapted to sealingly engage the seat, the opposite end of said body having a reduced diameter portion concentric with the body and including a guide stem; a guide member including a bore which slidably receives the guide stem positioned over the counterbored end of said passage, said guide stem having an end portion terminating within said guide member and enclosed thereby; a compression spring positioned between the cylindrical body and the guide member and surrounding the guide stem for maintaining the cylindrical body continually biased toward the shoulder; and, a bonnet nut member rotatably receiving the guide member and threadedly connected to said housing whereby adjustment of the bonnet nut member varies the compression on said spring.
Claim 2
Dependent Claim
244 words
A relief valve comprising: a housing having a first passage formed longitudinally therethrough and a second passage extending laterally into the housing into flow relationship with the first passage, said first passage being counterbored to a larger diameter inwardly from one end to a point slightly past the intersection of the second passage to define an internal valve chamber, a juncture between the counterbored portion and the remainder of the first passage defining an annular shoulder which serves as a valve seat; a valve member slidably carried within the counterbored portion of the first passage and having a cylindrical body closely received in the counterbore and having a circumferential groove which carries a seal ring, the end of the body facing said annular shoulder having a portion adapted to sealingly engage the seat, the opposite end of said body having a reduced diameter portion concentric with the body and including a guide stem; a guide member including a bore which slidably receives the guide stem positioned over the counterbored end of said passage, said guide stem having an end portion terminating within said guide member and enclosed thereby; a compression spring positioned between the cylindrical body and the guide member and surrounding the guide stem for maintaining the cylindrical body continually biased toward the shoulder; and, a bonnet nut member rotatably receiving the guide member and threadedly connected to said housing whereby adjustment of the bonnet nut member varies the compression on said spring.
Claim 3
Dependent Claim
31 words
The invention as defined in claim 1 wherein said seal ring is carried at a location spaced from said lateral passage when said valve member is in engagement with said seat.
Claim 4
Dependent Claim
33 words
The invention as defined in claim 1 wherein said guide member is freely rotatable within said bonnet nut and wherein said guide stem is freely rotatable in the bore in said guide member.
Claim 5
Dependent Claim
25 words
The valve as defined in claim 3 wherein said guide member includes a tapered shoulder which engages a corresponding tapered shoulder in said bonnet nut.
Claim 6
Dependent Claim
23 words
The invention as defined in claim 4 wherein means are provided for locking said bonnet nut in a desired position on said housing.
Claim 7
Dependent Claim
21 words
The invention as defined in claim 5 wherein said guide member includes a portion which extends outward through said bonnet nut.
Claim 8
Dependent Claim
37 words
The valve as defined in claim 1 wherein the lower end of said cylindrical body includes a conically shaped tip adapted to engage said seat, said tip having a coating of resilient material on the end thereof.
Claim 9
Dependent Claim
214 words
A relief valve comprising: a housing having a first passage formed longitudinally therethrough and a second passage extending laterally into the housing into flow relationship with the first passage, said first passage extending past the intersection of the second passage to define an internal valve chamber, a seat in said valve chamber; a valve member slidably carried within the counterbored portion of the first passage and having a cylindrical body closely received in the counterbore and having a circumferential groove which carries a seal ring, the end of the body facing said annular shoulder having a portion adapted to sealingly engage the seat, the opposite end of said body having a reduced diameter portion concentric with the body and including a guide stem; a guide member including a bore which slidably receives the guide stem positioned over the counterbored end of said passage, said guide stem having an end portion terminating within said guide member and enclosed thereby; a compression spring positioned between the cylindrical body and the guide member and surrounding the guide stem for maintaining the cylindrical body continually biased toward the shoulder; and, a bonnet nut member rotatably receiving the guide member and threadedly connected to said housing whereby adjustment of the bonnet nut member varies the compression on said spring.
Claim 10
Dependent Claim
214 words
A relief valve comprising: a housing having a first passage formed longitudinally therethrough and a second passage extending laterally into the housing into flow relationship with the first passage, said first passage extending past the intersection of the second passage to define an internal valve chamber, a seat in said valve chamber; a valve member slidably carried within the counterbored portion of the first passage and having a cylindrical body closely received in the counterbore and having a circumferential groove which carries a seal ring, the end of the body facing said annular shoulder having a portion adapted to sealingly engage the seat, the opposite end of said body having a reduced diameter portion concentric with the body and including a guide stem; a guide member including a bore which slidably receives the guide stem positioned over the counterbored end of said passage, said guide stem having an end portion terminating within said guide member and enclosed thereby; a compression spring positioned between the cylindrical body and the guide member and surrounding the guide stem for maintaining the cylindrical body continually biased toward the shoulder; and, a bonnet nut member rotatably receiving the guide member and threadedly connected to said housing whereby adjustment of the bonnet nut member varies the compression on said spring.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |