Anti-static spiral spring for valve
AssigneeBray International, Inc.
InventorsPartha CHINNASAMY, Madankumar MUTHUSAMY, Satish SHEWALE, Vasanthakumar CHINNADURAI, Patrick O'CONNELL
Life of this patent
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Abstract
The disclosure relates to a spring for a rotating valve, having a spring body of the spring, wherein the spring body is coiled; an innermost section of the spring body; an outermost section of the spring body; wherein the spring is constructed of a conductive material and configured to remove electrostatic discharge from the rotating valve; wherein one of either the innermost section or the outermost section is unfixed to the rotating valve.
Claims23
A spring for a rotating valve, comprising:
- a spring body of the spring, wherein the spring body is coiled;
- an innermost section of the spring body;
- an outermost section of the spring body;
- wherein the spring is constructed of a conductive material and configured to remove electrostatic discharge from the rotating valve;
- and
- wherein one of either the innermost section or the outermost section is unfixed to the rotating valve.
A valve having a valve body, wherein an obturator within the valve body is rotated by a valve stem, comprising:
- a spring having a spring body coiled around the valve stem;
- wherein the spring is in electroconductive communication with the valve stem and the valve body;
- wherein the spring comprises a flat, spiral spring shape;
- an inner end section of the spring body;
- an outer end section of the spring body;
- wherein the spring is free-floating at one of either the inner end section or the outer end section;
- and
- further wherein the spring is affixed in position at one of either the inner end section or the outer end section.
A method for dissipating an electrostatic discharge from a valve having a valve body, comprising the following steps:
- providing a spring wrapped around a stem of the valve, wherein the spring is connected to the stem and the valve;
- wherein the spring comprises two to three coils and comprises a flat spiral spring form;
- wherein the spring defines a first protuberance at an innermost section of the spring and wherein the spring defines an outermost section of the spring;
- and
- contacting the stem with the spring at the first protuberance, and further contacting the stem with the spring along an interior surface of the spring, wherein the spring is free-floating at one of either the innermost section or the outermost section.
Dependencies are inferred from the claim text.