Patent US4506865A successfully refreshed from Google Patents.
US4506865A
Expired / Lapsed
US
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Valve housing
Assignee: VOROSHILOVGRADSKY MASHINOSTROITELNY INSTITUT USSR VOROSHILOVGRAD
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Filing: 1984-01-13
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Granted: 1985-03-26
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Expires: 2004-01-13
Abstract
Abstract A valve housing has butt pipes for connection to a pipeline for defining therewith a passage for a flow of a fluid being conveyed, preferably of a slurry. A plurality of ribs are provided along the passage on the lower portion of the wall thereof, each rib extending transversely of the passage. Each rib is of a tear-shaped configuration in its section taken along the longitudinal centerline of the passage, the enlarged portion of the rib facing toward the incoming flow of a fluid being conveyed.
Inventors
- 👤 Boris F. Bragin
- 👤 Petr V. Gladky
- 👤 Felix D. Markuntovich
- 👤 Evgeny F. Perepletchikov
- 👤 Isidor I. Frumin
- 👤 Boris Y. Ekber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:03
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; B65G53/523; F16K25/00; F16K25/04; F16K27/00; F16K27/04; F16K27/044; F16L; F16L57/00; F16L57/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
A valve housing for installation in a pipeline, having: butt pipes for connection to said pipeline for defining therewith a straight-flow passage for a flow of a fluid being conveyed; a plurality of ribs provided along the straight-flow passage on the lower portion of its wall, each passage extending substantially transversely of the straight-flow passage; each of said plurality of ribs having in a section taken through the longitudinal centerline of the straight-flow passage a tear-shaped configuration, the enlarged portion of the rib facing toward the incoming flow of a fluid being conveyed.
Claim 2
Dependent Claim
93 words
A valve housing for installation in a pipeline, having: butt pipes for connection to said pipeline for defining therewith a straight-flow passage for a flow of a fluid being conveyed; a plurality of ribs provided along the straight-flow passage on the lower portion of its wall, each passage extending substantially transversely of the straight-flow passage; each of said plurality of ribs having in a section taken through the longitudinal centerline of the straight-flow passage a tear-shaped configuration, the enlarged portion of the rib facing toward the incoming flow of a fluid being conveyed.
Claim 3
Dependent Claim
20 words
A housing according to claim 1, wherein each of said plurality of the ribs is made of a wear-resistant material.
Claim 4
Dependent Claim
59 words
A housing according to claim 1, wherein the surface of each of said plurality of ribs facing toward the incoming flow a fluid being conveyed makes with the plane extending transversely of the straight-flow passage an angle which does not exceed the angle of friction of solid particles of a fluid being conveyed on the plurality of said ribs.
Claim 5
Dependent Claim
32 words
A housing according to claim 1, wherein the height of each of the plurality of said ribs is not in excess of 0.03-0.05 of the maximum cross-sectional dimension of the straight-flow passage.
References Cited (Backward Citations)
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Cited
US1518705A
Cited
US2350759A
Cited
US2578003A
Cited
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Cited
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Cited
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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) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |