Anti-static spiral spring for valve
AssigneeBray International, Inc.
InventorsMadankumar 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, wherein the spring body is coiled; an innermost section of the spring body, wherein the innermost section has an inner protuberance; an outermost section of the spring body, wherein the outermost section has an outer protuberance; wherein the spring is constructed of a conductive material and configured to remove electrostatic discharge from the rotating valve.
Claims19
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, wherein the innermost section comprises an inner protuberance, wherein the inner protuberance is unfixed to the rotating valve;
- an outermost section of the spring body, wherein the outermost section comprises an outer protuberance, wherein the outer protuberance is unfixed to the rotating valve;
- wherein the spring is constructed of a conductive material and configured to remove electrostatic discharge from 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;
- a first interference defined on the inner end section;
- and
- a second interference defined on the outer end section;
- and
- wherein the spring is free-floating.
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, and further wherein the spring is free-floating;
- 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 a second protuberance at 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.
Dependencies are inferred from the claim text.