Patent US3724496A successfully refreshed from Google Patents.
US3724496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cage and guide construction for a ball-type valve
Assignee: OILWELL Inc A CORP OF
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Filing: 1971-11-11
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Granted: 1973-04-03
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Expires: 1991-11-11
Abstract
Abstract A cage and guide construction for a ball-type valve, used for example in a subsurface pump. The cage has spaced apart internal shoulders which have confronting grooves. The guide pieces lie between the shoulders and have lips received in the grooves to lock them in place. The guide pieces can be either metal or elastomer and are not distorted when inserted or removed.
Inventors
- 👤 W Secrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:05
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791; Y10T137/7911
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
In a valve, which comprises a cage, a seat fixed within said cage, a ball confined within said cage and cooperable with said seat for preventing flow of fluid in one direction through the valve, and guide means in said cage for said ball, an improved cage and guide construction comprising an internal shoulder within said cage, a plurality of circumferentially spaced segmental internal shoulders within said cage spaced from said first-named shoulder, said first-named shoulder having a circular groove, said second-named shoulders having arcuate grooves confronting said circular groove, and a plurality of guide pieces lying beTween said first and said second-named shoulders, each of said guide pieces having lips at its opposite ends received respectively in said circular groove and in one of said arcuate grooves to lock the guide pieces within said cage, said cage having at least one opening through which said guide pieces can be inserted into the spaces between said second-named shoulders and rotated to lock them in the cage.
Claim 2
Dependent Claim
166 words
In a valve, which comprises a cage, a seat fixed within said cage, a ball confined within said cage and cooperable with said seat for preventing flow of fluid in one direction through the valve, and guide means in said cage for said ball, an improved cage and guide construction comprising an internal shoulder within said cage, a plurality of circumferentially spaced segmental internal shoulders within said cage spaced from said first-named shoulder, said first-named shoulder having a circular groove, said second-named shoulders having arcuate grooves confronting said circular groove, and a plurality of guide pieces lying beTween said first and said second-named shoulders, each of said guide pieces having lips at its opposite ends received respectively in said circular groove and in one of said arcuate grooves to lock the guide pieces within said cage, said cage having at least one opening through which said guide pieces can be inserted into the spaces between said second-named shoulders and rotated to lock them in the cage.
Claim 3
Dependent Claim
18 words
A valve as defined in claim 1 in which the opening in said cage is in one end.
Claim 4
Dependent Claim
26 words
A valve as defined in claim 1 in which there are a plurality of openings in the form of slots in the sides of the cage.
Claim 5
Dependent Claim
31 words
A valve as defined in claim 1 in which the guides pieces are inserted and removed through said opening without distorting them and may be either rigid metal or resilient elastomer.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |