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US4553566A Expired / Lapsed US ⏱️ 0.0 years remaining

Rotary multiposition valve

Assignee: United States, AS REPRESENTED DEPARTMENT OF ENERGY
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Filing: 1984-04-06
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Granted: 1985-11-19
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Expires: 2004-04-06
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Abstract

Abstract The disclosure is directed to a rotary multiposition valve for selectively directing the flow of a fluid through a plurality of paths. The valve comprises an inner member and a hollow housing with a row of ducts on its outer surface. The ducts are in fluid communication with the housing. An engaging section of the inner member is received in the housing. A seal divides the engaging section into a hollow inlet segment and a hollow outlet segment. A plurality of inlet apertures are disposed in the inlet segment and a plurality of outlet apertures are disposed in the outlet segment. The inlet apertures are disposed in a longitudinally and radially spaced-apart pattern that can be a helix. The outlet apertures are disposed in a corresponding pattern. As the inner member is rotated, whenever an inlet aperture overlaps one of the ducts, the corresponding outlet aperture overlaps a different duct, thus forming a fluid pathway.

Inventors

  • 👤 John A. Barclay
  • 👤 Jack E. Dyson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:50
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/085; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T137/86509; Y10T137/86517; Y10T137/86533; Y10T137/86718; Y10T137/86726; Y10T137/86863

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 237 words
A rotary multiposition valve for selectively directing the flow of a fluid through a plurality of paths comprising: a. a housing, said housing having a portion defining a hollow tube; b. a plurality of ducts, said ducts being disposed longitudinally in a spaced-apart relationship on the periphery of said housing and being in fluid communication with said hollow tube; and c. an inner member having an engaging section and a base section connected thereto, said engaging section being received in said hollow tube and having a seal means disposed within and dividing said engaging section into a hollow inlet segment and a hollow outlet segment, said base section being outside of said hollow tube and having a hollow interior segment in fluid communication with said inlet segment, said inlet segment having portions defining a plurality of inlet apertures, said plurality of inlet apertures being disposed in a longitudinally and radially spaced-apart pattern in said inlet segment, said outlet segment having portions defining a plurality of outlet apertures, said plurality of outlet apertures being disposed in a corresponding spaced-apart pattern in said outlet segment, so that as said inner member is rotated relative to said housing, whenever an inlet aperture overlaps with one of said ducts, the corresponding outlet aperture will overlap with a different duct, whereby a fluid pathway is formed through which fluid introduced into said base section can flow when the corresponding ducts are connected.
Claim 2
Dependent Claim 237 words
A rotary multiposition valve for selectively directing the flow of a fluid through a plurality of paths comprising: a. a housing, said housing having a portion defining a hollow tube; b. a plurality of ducts, said ducts being disposed longitudinally in a spaced-apart relationship on the periphery of said housing and being in fluid communication with said hollow tube; and c. an inner member having an engaging section and a base section connected thereto, said engaging section being received in said hollow tube and having a seal means disposed within and dividing said engaging section into a hollow inlet segment and a hollow outlet segment, said base section being outside of said hollow tube and having a hollow interior segment in fluid communication with said inlet segment, said inlet segment having portions defining a plurality of inlet apertures, said plurality of inlet apertures being disposed in a longitudinally and radially spaced-apart pattern in said inlet segment, said outlet segment having portions defining a plurality of outlet apertures, said plurality of outlet apertures being disposed in a corresponding spaced-apart pattern in said outlet segment, so that as said inner member is rotated relative to said housing, whenever an inlet aperture overlaps with one of said ducts, the corresponding outlet aperture will overlap with a different duct, whereby a fluid pathway is formed through which fluid introduced into said base section can flow when the corresponding ducts are connected.
Claim 3
Dependent Claim 18 words
The invention of claim 1 wherein the pattern formed by said first plurality of apertures comprises a helix.
Claim 4
Dependent Claim 18 words
The invention of claim 2 wherein the pattern formed by said second plurality of apertures comprises a helix.
Claim 5
Dependent Claim 16 words
The invention of claim 1 wherein said seal means is centrally disposed within said engaging section.
Claim 6
Dependent Claim 15 words
The invention of claim 1 wherein said plurality of inlet apertures comprises four inlet apertures.
Claim 7
Dependent Claim 15 words
The invention of claim 5 wherein said plurality of outlet apertures comprises four outlet apertures.
Claim 8
Dependent Claim 13 words
The invention of claim 6 wherein said plurality of ducts comprises eight ducts.
Claim 9
Dependent Claim 15 words
The invention of claim 1 wherein said housing and said inner member comprise a metal.
Claim 10
Dependent Claim 16 words
The invention of claim 8 wherein said housing and said inner member comprise the same metal.
Claim 11
Dependent Claim 15 words
The invention of claim 9 wherein said housing and said inner member comprise stainless steel.
Claim 12
Dependent Claim 31 words
The invention of claim 1 wherein said hollow tube has a diameter from about 4×10 -4 mm to about 1×10 -3 mm larger than the outside diameter of said engaging section.
Claim 13
Dependent Claim 11 words
The invention of claim 1 wherein said fluid comprises helium gas.

References Cited (Backward Citations)

US1465569A Cited
US2447423A Cited
US4312372A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-11-18 1989-05-20 1989-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-11-18 1993-05-20 1993-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-11-18 1997-05-20 1997-11-19 $7700.00 Window Closed / Lapsed

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