Resin-molded valve and method of making the same
First Claim
Patent Images
1. A valve, comprising:
- a preassembled valve body of resin, including an inner housing having a fist port therein and having a cavity therein which is in fluid communication with said first port, a housing cap having a portion lockingly held in said cavity in said inner housing and having a second port therein which is in fluid communication with said cavity in said inner housing, a valve element movably supported in said cavity so as to permit adjustment of the degree of fluid communication between said first and second ports, and a driving stem which extends through an opening in said inner housing and is coupled to said valve element for effecting movement thereof; and
a cover of resin provided over said preassembled valve body so as to substantially cover exterior surfaces of said inner housing and said housing cap.
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Abstract
A valve molded entirely of resin includes a valve body having an inner housing, a housing cap fitted in the inner housing, a valve element such as a ball, and a stem coupled to the valve element and actuatable to move the latter for providing selective communication between ports in the inner housing and the housing cap. The valve body is covered with a frame molded of resin and substantially covering the exterior surface of the valve body.
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Citations
13 Claims
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1. A valve, comprising:
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a preassembled valve body of resin, including an inner housing having a fist port therein and having a cavity therein which is in fluid communication with said first port, a housing cap having a portion lockingly held in said cavity in said inner housing and having a second port therein which is in fluid communication with said cavity in said inner housing, a valve element movably supported in said cavity so as to permit adjustment of the degree of fluid communication between said first and second ports, and a driving stem which extends through an opening in said inner housing and is coupled to said valve element for effecting movement thereof; and a cover of resin provided over said preassembled valve body so as to substantially cover exterior surfaces of said inner housing and said housing cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of making a valve, comprising the steps of:
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preassembling a valve body which is made of resin, said valve body including an inner housing having a first port therein and having therein a cavity which is in fluid communication with said first port, a housing cap having a portion lockingly fitted in said cavity in said inner housing and having a second port therein which is in fluid communication with said cavity in said inner housing, a valve element movably supported in said cavity so as to perit adjustment of the degree of fluid communication between said first and second ports, and a driving stem which extends through an opening in said inner housing and is coupled to said valve element for effecting movement thereof; and thereafter molding a cover of resin over said valve body so as to substantially cover exterior surfaces of said inner housing and said housing cap. - View Dependent Claims (11, 12, 13)
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Specification