Valve
First Claim
Patent Images
1. A valve device for a fluid line comprising in combination:
- a. a valve chamber, b. a fluid inlet to said valve chamber, a fluid outlet from said valve chamber that is spaced away from said fluid inlet, and a fluid flow channel connecting said fluid inlet and fluid outlet, c. a variable pressure chamber located intermediate said fluid inlet and fluid outlet resp. associated to said outlet, d. an expandable member disposed across said variable pressure chamber, said expandable member being adapted to be moved from one position to another within said fluid pressure chamber in response to fluid force applied to its surface, e. a first passageway connecting one side of said expandable member with said fluid flow channel at a point intermediate its ends, f. a second passageway connecting the other side of said expandable member with said fluid flow outlet at a point beyond the outlet end of said fluid flow channel, g. a resilient disc positioned between said fluid inlet and the beginning of said fluid flow channel, said resilient disc being provided with a centrally located hole, and h. a fluid return passageway which starts at a point between the downstream side of said resilient disc and the upstream end of said fluid flow channel, which passageway is cut off from said fluid inlet by said resilient disc under normal fluid flow conditions and open to said fluid flow channel and inlet at pressure conditions below said normal fluid flow pressure conditions.
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Abstract
A valve for a fluid flow line comprising a valve housing defining a valve chamber and a valve member in the chamber, the valve member being designed to draw back a limited quantity of fluid upon a drop in pressure at an inlet of the valve.
23 Citations
1 Claim
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1. A valve device for a fluid line comprising in combination:
- a. a valve chamber, b. a fluid inlet to said valve chamber, a fluid outlet from said valve chamber that is spaced away from said fluid inlet, and a fluid flow channel connecting said fluid inlet and fluid outlet, c. a variable pressure chamber located intermediate said fluid inlet and fluid outlet resp. associated to said outlet, d. an expandable member disposed across said variable pressure chamber, said expandable member being adapted to be moved from one position to another within said fluid pressure chamber in response to fluid force applied to its surface, e. a first passageway connecting one side of said expandable member with said fluid flow channel at a point intermediate its ends, f. a second passageway connecting the other side of said expandable member with said fluid flow outlet at a point beyond the outlet end of said fluid flow channel, g. a resilient disc positioned between said fluid inlet and the beginning of said fluid flow channel, said resilient disc being provided with a centrally located hole, and h. a fluid return passageway which starts at a point between the downstream side of said resilient disc and the upstream end of said fluid flow channel, which passageway is cut off from said fluid inlet by said resilient disc under normal fluid flow conditions and open to said fluid flow channel and inlet at pressure conditions below said normal fluid flow pressure conditions.
Specification
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Current AssigneeCurt Arnold Bjorklund
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Original AssigneeCurt Arnold Bjorklund
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InventorsBjorklund, Curt Arnold
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Primary Examiner(s)Myhre, Charles J.
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Assistant Examiner(s)Lazarus, Ira S.
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Application NumberUS05/334,559Time in Patent Office831 DaysField of Search137/614.19,525,525.1,525.3,516.29,613 141/115,116,117,119 222/108,109,110US Class Current137/613CPC Class CodesB67D 7/42 Filling nozzlesF16K 23/00 Valves for preventing drip ...F23K 5/147 ValvesY10T 137/87917 Flow path with serial valve...
