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US 9,810,359 B2Granted
Pipe coupling
AssigneeSpears Manufacturing Co.
InventorsWayne Spears, Robert Wayne Spears, II, David E. Littleton
Life of this patent
Estimating the term…
Abstract
Each gripper washer 22 is disposed between a gasket retaining ring 18 and an end connector 14. The gripper washers 22 can be any size and dimension, and made from any material, including but not limited to plastic, polyvinyl chloride, or metal. The gripper washers 22 are a washer-like structure, typically a metallic structure that comprises an interior diameter, a concentric inner periphery and an exterior periphery 24. Each gripper washer 22 is disposed between a gasket retaining ring 18 and an end connector 14, such that the exterior periphery 24 of the gripper washer 22 is in contact with, or in close proximity to, the shoulder 20 of the gasket retaining ring 18.
Claims20
A pipe coupling comprising:
- a) a cylindrical body for accepting and retaining ends of a pair of spaced apart pipe sections, the cylindrical body comprising two opposed ends, the two opposed ends each comprising an interior surface;
- b) an end connector attached to each of the opposed ends of the cylindrical body, each end connector comprising an axially facing interior surface and a radially facing interior surface, the axially facing interior surface having a groove formed therein;
- c) a gasket disposed within an indentation defined within the interior surface of each of the opposed ends of the cylindrical body;
- d) a gasket retaining ring disposed between each end connector and the corresponding gasket, each gasket retaining ring having a shoulder disposed within the groove of the corresponding end connector;
- and
- e) a gripper washer disposed between each gasket retaining ring and end connector, each gripper washer comprising a concentric interior periphery composed of a plurality of gripping fingers;
- wherein the shoulder of each of the gasket retaining rings prevents the corresponding gripper washer from contacting the radially facing interior surface of the corresponding end connector.
4 more elements
A pipe coupling comprising:
- a) a cylindrical body for accepting and retaining ends of a pair of spaced apart pipe sections, the cylindrical body comprising two opposed ends, the two opposed ends each comprising an interior surface;
- b) an end connector attached to each of the opposed ends of the cylindrical body, each end connector comprising an axially facing interior surface and a radially facing interior surface, the axially facing interior surface having an annular groove formed therein;
- c) a gasket disposed within an indentation defined within the interior surface of each of the opposed ends of the cylindrical body;
- d) a gasket retaining ring disposed between each end connector and the corresponding gasket, each gasket retaining ring having a shoulder disposed within the groove of the corresponding end connector;
- and
- e) a gripper washer disposed between each gasket retaining ring and end connector, each gripper washer comprising a concentric interior periphery composed of a plurality of gripping fingers;
- wherein the shoulder of each of the gasket retaining rings prevents the corresponding gripper washer from contacting the radially facing interior surface of the corresponding end connector and the gasket retaining rings and the end connectors are made from a same material.
4 more elements
A pipe coupling comprising:
- a) a cylindrical body for accepting and retaining ends of a pair of spaced apart pipe sections, the cylindrical body comprising two opposed ends, the two opposed ends each comprising an interior surface;
- b) an end connector attached to each of the opposed ends of the cylindrical body, each end connector comprising an axially facing interior surface and a radially facing interior surface, the axially facing interior surface having a groove formed therein;
- c) a gasket disposed within an indentation defined within the interior surface of each of the opposed ends of the cylindrical body;
- d) a gasket retaining ring disposed between each end connector and the corresponding gasket, each gasket retaining ring having a shoulder disposed within the groove of the corresponding end connector;
- and
- e) a gripper washer disposed between each gasket retaining ring and end connector, each gripper washer comprising a concentric interior periphery composed of a plurality of gripping fingers;
- wherein the shoulder of each of the gasket retaining rings prevents the corresponding gripper washer from contacting the radially facing interior surface of the corresponding end connector and the gasket retaining rings and the end connectors are made from polyvinyl chloride.
4 more elements
Dependencies are inferred from the claim text.