Deformable mechanical pipe coupling with shoulder pipe elements
First Claim
1. In combination, interconnectable pipe coupling segments and a pair of pipe elements, each said coupling segment being positionable straddling facing end portions of said pair of pipe elements for securing said pipe elements together in end-to-end relationship, said pipe elements each having a raised circumferential shoulder positioned at said end portion, and wherein each said segment comprises:
- first and second arcuate surfaces positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate surfaces subtending an angle of less than 180° and
having a radius of curvature greater than a radius of curvature of outer surfaces of said pipe elements on said raised circumferential shoulders;
first and second arcuate landings positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate landings subtending an angle of less than 180° and
having a radius of curvature greater than said radius of curvature of said outer surfaces of said pipe elements on said raised circumferential shoulders; and
connection members for adjustably connecting one coupling segment to another, said connection members being adjustably tightenable for drawing one of said arcuate surfaces and said arcuate landings of said segments into contact with outer surfaces of said pipe elements, said segments being deformable upon adjustable tightening of said connection members so as to substantially conform the curvature of one of said arcuate surfaces and said arcuate landings to said outer surfaces of said pipe elements.
1 Assignment
0 Petitions
Accused Products
Abstract
A mechanical pipe coupling formed of segments attached end to end surrounding a central space is used to connect pipe elements having a raised circumferential shoulder in end to end relationship. The segments have arcuate surfaces and arcuate landings which subtend an angle less than 180° and which have a radius of curvature greater than the radius of curvature of outer surfaces of the pipe elements on the raised circumferential shoulder. The segments are maintained in spaced relation allowing the pipe elements to be inserted into the central space without disassembling the pipe coupling. Connection members attaching the segments to one another are tightened to engage the arcuate surfaces or the arcuate landings with outer surfaces of the pipe elements to effect the connection.
-
Citations
29 Claims
-
1. In combination, interconnectable pipe coupling segments and a pair of pipe elements, each said coupling segment being positionable straddling facing end portions of said pair of pipe elements for securing said pipe elements together in end-to-end relationship, said pipe elements each having a raised circumferential shoulder positioned at said end portion, and wherein each said segment comprises:
-
first and second arcuate surfaces positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate surfaces subtending an angle of less than 180° and
having a radius of curvature greater than a radius of curvature of outer surfaces of said pipe elements on said raised circumferential shoulders;first and second arcuate landings positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate landings subtending an angle of less than 180° and
having a radius of curvature greater than said radius of curvature of said outer surfaces of said pipe elements on said raised circumferential shoulders; andconnection members for adjustably connecting one coupling segment to another, said connection members being adjustably tightenable for drawing one of said arcuate surfaces and said arcuate landings of said segments into contact with outer surfaces of said pipe elements, said segments being deformable upon adjustable tightening of said connection members so as to substantially conform the curvature of one of said arcuate surfaces and said arcuate landings to said outer surfaces of said pipe elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. In combination, a pair of pipe elements and a pipe coupling, said pipe coupling being positionable straddling facing end portions of said pair of pipe elements for securing said pipe elements together in end-to-end relationship, said pipe elements each having a raised circumferential shoulder positioned at said end portion, and wherein said pipe coupling comprises:
-
first and second coupling segments, each said coupling segment having first and second arcuate surfaces positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate surfaces subtending an angle of less than 180° and
having a radius of curvature greater than a radius of curvature of outer surfaces of said pipe elements on said raised circumferential shoulders;each said coupling segment having first and second arcuate landings positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate landings subtending an angle of less than 180° and
having a radius of curvature greater than said radius of curvature of said outer surfaces of said pipe elements on said raised circumferential shoulders; andsaid first and second coupling segments being connected to one another end to end surrounding a central space, each said coupling segment having connection members adjustably connecting one said coupling segment to another, said connection members being adjustably tightenable for drawing one of said arcuate surfaces and said arcuate landings of said segments into contact with said outer surfaces of said pipe elements when said pipe elements are inserted into said central space, said segments being deformable upon adjustable tightening of said connection members so as to substantially conform the curvature of one of said arcuate surfaces and said arcuate landings to said outer surfaces of said pipe elements. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. In combination, a pair of pipe elements and a pipe coupling, said pipe coupling being positionable straddling facing end portions of said pair of pipe elements for securing said pipe elements to one another in end-to-end relation, said pipe elements each having a raised circumferential shoulder positioned at said end portion, said coupling comprising:
-
a plurality of coupling segments, each said coupling segment having first and second arcuate surfaces positioned in spaced apart relation to one another on opposite sides of each said segment, each of said arcuate surfaces subtending an angle of less than 180° and
having a radius of curvature greater than a radius of curvature of said outer surfaces of said pipe elements on said raised circumferential shoulders;each said coupling segment having first and second arcuate landings positioned in spaced apart relation to one another on opposite sides of said segment, each of said arcuate landings subtending an angle of less than 180° and
having a radius of curvature greater than said radius of curvature of said outers surfaces of said pipe elements on said raised circumferential shoulders; andsaid coupling segments being connected to one another end to end surrounding a central space, each said coupling segment having connection members adjustably connecting one coupling segment to another, said connection members being adjustably tightenable for drawing one of said arcuate surfaces of said segments and said arcuate landings into contact with said outer surfaces of said pipe elements when said pipe elements are inserted into said central space, said segments being deformable upon adjustable tightening of said connection members so as to substantially conform the curvature of one of said arcuate surfaces and said arcuate landings to said outer surfaces of said pipe. - View Dependent Claims (27, 28, 29)
-
Specification