A preassembled mechanical pipe coupling having spacers is disclosed. The coupling has a plurality of interconnectable segments that straddle the ends of pipe elements to be joined. The segments have arcuate surfaces that engage outer surfaces of the pipe elements. Spacers, positioned between the seg
A preassembled mechanical pipe coupling having spacers is disclosed. The coupling has a plurality of interconnectable segments that straddle the ends of pipe elements to be joined. The segments have arcuate surfaces that engage outer surfaces of the pipe elements. Spacers, positioned between the segments, maintain them in spaced apart relation sufficient to allow the pipe elements to be inserted between the segments. The segments have adjustably tightenable connection members for connecting the segments and drawing them to one another. When the connection members are tightened and the effect of the spacers is overcome, the arcuate surfaces are brought into engagement with the outer surfaces of the pipe elements.
대표청구항▼
What is claimed is: 1. A pipe coupling positionable straddling facing end portions of a pair of pipe elements for securing said pipe elements together in end-to-end relationship, wherein said end portions of said pipe elements have an outer surface of substantially cylindrical profile and wherein s
What is claimed is: 1. A pipe coupling positionable straddling facing end portions of a pair of pipe elements for securing said pipe elements together in end-to-end relationship, wherein said end portions of said pipe elements have an outer surface of substantially cylindrical profile and wherein said pipe coupling comprises: a plurality of coupling segments, each said coupling segment having a pair of arcuate surfaces adapted to interface with the cylindrically profiled outer surfaces of said pipe elements, said arcuate surfaces being in spaced apart relation lengthwise of one another; each said coupling segment having connection members for adjustably connecting one coupling segment to another; a spacer positioned between said coupling segments, said spacer being held between said segments solely by friction between said spacer and said segments, said spacer for maintaining said coupling segments in spaced apart relation at a distance forming an opening at ends of said segments greater than an outer diameter of said pipe elements, said end portions of said pipe elements being insertable between said coupling segments in said end-to-end relationship; and said connection members being adjustably tightenable for drawing said segments together, said spacer being removable from between said segments, removal of said spacer allowing for tightening of said connection members permitting said arcuate surfaces to engage said outer surfaces of said pipe elements when said portions of said pipe elements are inserted between said coupling segments in said end-to-end relationship; a seal for sealing the facing end portions together. 2. A pipe coupling according to claim 1, wherein said spacer comprises a block-shaped body positioned between said connection members. 3. A pipe coupling according to claim 1, wherein at least one of said arcuate surfaces subtends an angle of less than 180° and, at least one of said segments being deformable upon adjustable tightening of said connection members so as to conform the curvature of said arcuate surfaces to the outer surfaces of said pipe elements. 4. A pipe coupling according to claim 1, wherein said arcuate surfaces project radially inwardly from said segments, at least one notch being formed in at least one of said arcuate surfaces proximate to one end of said segment, said notch providing clearance for insertion of said end portions of said pipe elements between said segments. 5. A pipe coupling positionable straddling facing end portions of a pair of pipe elements for securing said pipe elements together in end-to-end relationship, wherein said end portions of said pipe elements have an outer surface of substantially cylindrical profile and wherein said pipe coupling comprises: first and second coupling segments, each coupling segment having a pair of arcuate surfaces adapted to interface with the outer surfaces of said pipe elements, said arcuate surfaces being in spaced apart relation lengthwise of one another; each said coupling segment having a pair of lugs projecting outwardly from opposite ends thereof, said lugs on said first segment being in facing relation with said lugs on said second segment; a pair of fasteners extending between each of said lugs in said facing relationship; a pair of spacers, one said spacer positioned between each of said lugs in said facing relationship, said spacers being held between said lugs solely by friction between said spacer and said lugs, said spacers for maintaining said coupling segments in spaced apart relationship at a distance forming an opening between said lugs in said facing relationship greater than an outer diameter of said ripe elements so as to allow said end portions of said pipe elements to be inserted between said coupling segments in said end-to-end relationship; and said fasteners being adjustably tightenable against said lugs for drawing said segments together, said spacers being removable from between said lugs removal of said spacers permitting said segments to be drawn together upon tightening of said fasteners, said arcuate surfaces engaging said outer surfaces of said pipe elements upon tightening of said fasteners when said end portions of said pipe elements are inserted between said coupling segments in said end-to-end relationship; a seal for sealing the facing end portions together. 6. A pipe coupling according to claim 5, wherein said spacers comprise block-shaped bodies positioned between said lugs in said facing relation. 7. A pipe coupling according to claim 5, wherein said arcuate surfaces subtend an angle of less than 180°, said segments being deformable upon removal of said spacers from between said segments and adjustable tightening of said fasteners so as to conform the curvature of said arcuate surfaces to the outer surfaces of said pipe elements. 8. A pipe coupling according to claim 5, wherein said arcuate surfaces project radially inwardly from said segments, a pair of notches being formed in each of said arcuate surfaces proximate to each end of said segments, said notches providing clearance for insertion of said end portions of said pipe elements between said segments when said segments are in said spaced apart relationship.
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Bowsher Mark A. (Flint TX), Clamp with teeth for grooved pipes.
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