Shutoff valve assembly
First Claim
Patent Images
1. A shutoff valve, comprising:
- (a) a housing having a back end and a front end;
(b) a plunger slidably mounted in the housing, the plunger being slidable between an opened position and a closed position, the plunger having a front end and a back end and defining a path for the flow of fluid therethrough, the back end of the plunger having inclined surfaces;
(c) projections extending from the back end of the housing, the projections slidably cooperating with the inclined surfaces to bias the plunger into the closed position; and
(d) seal means for sealing the fluid flow path when the plunger is in the closed position.
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Accused Products
Abstract
A shutoff valve (26) including a plunger (28) slidably mounted in a housing (30). The plunger (28) being slidable between an open and a closed position. The plunger (28) having a front end and a back end and defining a path flow of fluid therethrough. A back end (32) of the plunger (28) having inclined surfaces (50). Projections (34) extend from the back end (32) of the housing (30) and cooperate with the inclined surfaces (50) to bias the plunger (20) into the closed position.
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Citations
9 Claims
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1. A shutoff valve, comprising:
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(a) a housing having a back end and a front end; (b) a plunger slidably mounted in the housing, the plunger being slidable between an opened position and a closed position, the plunger having a front end and a back end and defining a path for the flow of fluid therethrough, the back end of the plunger having inclined surfaces; (c) projections extending from the back end of the housing, the projections slidably cooperating with the inclined surfaces to bias the plunger into the closed position; and (d) seal means for sealing the fluid flow path when the plunger is in the closed position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A coupling assembly, comprising:
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(a) a female coupling member having a front end and a back end and defining a path for the flow of fluid therethrough; (b) a male coupling member having a front end and a back end and defining a path for the flow of fluid therethrough, the male coupling member being receivable in the female coupling member; (c) a plunger member having a front end and a back end and slidably mounted in the male coupling member, the plunger member being slidable movement between a closed position and an opened position, the back end of the plunger having inclined surfaces; (d) projections axially extending from the back end of the male coupling member, the projections slidably cooperating with the inclined surfaces of the plunger member to bias the plunger member into the closed position; (e) means for maintaining the male coupling member and the female coupling in a coupled state; and (f) first seal means for providing a fluid tight seal between the plunger member and the male coupling member when the plunger member is in the closed state and second seal means for providing a fluid tight seal between the male coupling member and the female coupling member when in the coupled state. - View Dependent Claims (8, 9)
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Specification