LOW-TORQUE VALVE
First Claim
1. A valve for controlling a fluid flow, comprising:
- a. a valve body;
b. a valve stem securable within said valve body;
said valve stem having a control portion configured for blocking said fluid flow and a tail portion configured to transfer a rotating torque;
c. a deformable valve seat carried thereon in a coaxial and rotating manner;
said valve stem and valve seat having inner and outer surfaces, respectively, conformal to each other;
wherein said outer surface of said valve stem has a circumferentially-arranged stepped area;
said deformable valve seat when secured within said valve is deformed such that a space between said circumferentially-arranged stepped area of said outer surface and said inner surface of said valve seat is filled by said valve seat.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve for controlling a fluid flow including (a) a valve body; (b) a valve stem securable within the valve body; the valve stem having a control portion configured for blocking the fluid flow and a tail portion configured to transfer a rotating torque; and (c) a deformable valve seat carried thereon in a coaxial and rotating manner; the valve stem and valve seat having inner and outer surfaces, respectively, conformal to each other. The outer surface of the valve stem has a circumferentially-arranged stepped area; the deformable valve seat when secured within the valve is deformed such that a space between the circumferentially-arranged stepped area of the outer surface and the inner surface of the valve seat is filled by the valve seat.
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Citations
6 Claims
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1. A valve for controlling a fluid flow, comprising:
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a. a valve body; b. a valve stem securable within said valve body;
said valve stem having a control portion configured for blocking said fluid flow and a tail portion configured to transfer a rotating torque;c. a deformable valve seat carried thereon in a coaxial and rotating manner;
said valve stem and valve seat having inner and outer surfaces, respectively, conformal to each other;wherein said outer surface of said valve stem has a circumferentially-arranged stepped area;
said deformable valve seat when secured within said valve is deformed such that a space between said circumferentially-arranged stepped area of said outer surface and said inner surface of said valve seat is filled by said valve seat. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification