BIASED SWING CHECK VALVE
First Claim
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1. A check valve apparatus, comprising:
- a housing;
a connector mounted inside the housing;
a flapper joined to the connector;
a biasing member joined to the connector at one end and joined to the flapper proximate another end;
wherein the biasing member is internal to the housing; and
wherein the biasing member comprises a compression spring.
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Abstract
The disclosure relates to a check valve having a housing, a connector mounted inside the housing, a flapper joined to the connector, and a biasing member joined to the connector at one end and joined to the flapper proximate another end. The biasing member is internal to the housing, and includes a compression spring.
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Citations
20 Claims
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1. A check valve apparatus, comprising:
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a housing; a connector mounted inside the housing; a flapper joined to the connector; a biasing member joined to the connector at one end and joined to the flapper proximate another end; wherein the biasing member is internal to the housing; and wherein the biasing member comprises a compression spring. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The apparatus according to
FIG. 6 , wherein an axial direction of the pin, the fixed hinge and the rotating hinge is perpendicular to a direction of flow through a flow path defined by the housing.
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13. A check valve apparatus, comprising:
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a housing defining a flow path through the housing; a connector mounted inside the housing; a flapper joined to the connector; a biasing member joined to the connector at one end and joined to the flapper proximate another end; wherein the biasing member is internal to the housing; wherein the biasing member comprises a compression spring; and wherein said check valve apparatus is installed with the flow path in an orientation in which the flow path is not horizontal. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for operating a biased check valve in a compressor piping system, comprising the steps of:
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installing the biased check valve into the compressor piping system in an orientation wherein a flow path, defined by a housing for the biased check valve, is not horizontal; biasing the check valve to a closed position; and wherein said step of biasing the check valve is performed internal to the housing of the check valve. - View Dependent Claims (20)
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Specification