Pipe coupling with V-shaped tongue and recess
First Claim
1. A coupling for joining together a pair of pipe ends in coaxial engagement, each said pipe end having a circumferential groove formed in an outer surface thereof, each said groove being defined by a pair of annular side surfaces arranged in spaced relation and facing one another, said coupling comprising:
- first and second coupling portions each having an arcuate shape substantially conforming to said pipe ends, said first coupling portion having a free end comprising a V-shaped tongue extending therefrom, said second coupling portion having a free end comprising a V-shaped recess oriented for receiving said V-shaped tongue, said first and second coupling portions being circumferentially positionable about said pipe ends on opposite sides thereof with said V-shaped tongue interfitting within said V-shaped recess;
a pair of keys positioned in spaced relation to one another on each side of each of said coupling portions, each said key comprising a first arcuate surface facing substantially radially inwardly from said coupling portion and having a width sized to interfit within said groove between said annular side surfaces on one of said pipe ends when said coupling portions are circumferentially positioned about said pipe ends, said first arcuate surface being circumferentially engageable with said outer surface of said pipe within said groove; and
means for attaching said first and said second coupling portions to one another when circumferentially positioned about said pipe ends on opposite sides thereof to join said pipe ends together.
1 Assignment
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Accused Products
Abstract
A coupling for axially joining pipe ends together is disclosed. The coupling is divided into a pair of coupling portions which clamp around the pipe ends opposite one another. Each coupling portion has a pair of keys which engage circumferential grooves in the surfaces of the pipe ends. Each coupling portion has a free end with a V-shaped tongue extending therefrom and an opposite free end with a V-shaped recess. When clamped around the pipe ends, the V-shaped tongue on one coupling portion engages the V-shaped recess on the other coupling portion. The tongues each have an apex and the recesses each have a vertex which may be offset from the centerline of the coupling.
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Citations
21 Claims
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1. A coupling for joining together a pair of pipe ends in coaxial engagement, each said pipe end having a circumferential groove formed in an outer surface thereof, each said groove being defined by a pair of annular side surfaces arranged in spaced relation and facing one another, said coupling comprising:
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first and second coupling portions each having an arcuate shape substantially conforming to said pipe ends, said first coupling portion having a free end comprising a V-shaped tongue extending therefrom, said second coupling portion having a free end comprising a V-shaped recess oriented for receiving said V-shaped tongue, said first and second coupling portions being circumferentially positionable about said pipe ends on opposite sides thereof with said V-shaped tongue interfitting within said V-shaped recess;
a pair of keys positioned in spaced relation to one another on each side of each of said coupling portions, each said key comprising a first arcuate surface facing substantially radially inwardly from said coupling portion and having a width sized to interfit within said groove between said annular side surfaces on one of said pipe ends when said coupling portions are circumferentially positioned about said pipe ends, said first arcuate surface being circumferentially engageable with said outer surface of said pipe within said groove; and
means for attaching said first and said second coupling portions to one another when circumferentially positioned about said pipe ends on opposite sides thereof to join said pipe ends together. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A coupling for joining together a pair of pipe ends in coaxial engagement, said coupling comprising:
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first and second coupling portions each having an arcuate shape substantially conforming to said pipe ends, said first coupling portion having a free end comprising a V-shaped tongue extending therefrom, said second coupling portion having a free end comprising a V-shaped recess oriented for receiving said V-shaped tongue, said first and second coupling portions being circumferentially positionable about said pipe ends on opposite sides thereof with said V-shaped tongue interfitting within said V-shaped recess;
a pair of arcuate surfaces positioned in spaced relation to one another on each side of each of said coupling portions and facing substantially radially inwardly, said arcuate surfaces being circumferentially engageable with said outer surface of said pipe; and
means for attaching said first and said second coupling portions to one another when circumferentially positioned about said pipe ends on opposite sides thereof to join said pipe ends together. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification