Soil pipe coupling
First Claim
1. An unshielded soil pipe coupler comprising:
- an annular portion formed from an elastomer having a suitable hardness;
a ridge formed about the inner surface of the annular portion to separate the ends of two pipes to be coupled;
clamping means;
a clamping sleeve of an elastomer having a suitable hardness and formed integrally with the annular portion, said clamping sleeves extending axially from either side of the annular portion to overlap a length of each pipe to be joined, each said clamping sleeves being formed with an annular groove to receive clamping means and defined, in part, by an outwardly projecting ridge to confine the outer edge of the clamping means;
at least one outwardly projecting continuous circumferential ridge formed in the annular groove to separate the clamping means from the clamping sleeve and to stiffen the clamping sleeve;
axially extending inlets extending from at least one side toward the other side in the outer surfaces of the annular portion forming a plurality of equally spaced fingers of a suitable hardness to facilitate a change of shape of the clamping sleeves;
whereby the pipes to be coupled may be inserted into the clamping sleeve until the pipe ends abut the ridge of the annular portion, the clamping means being tightened to bend the fingers and shrink the clamping sleeves about the pipes to be coupled.
1 Assignment
0 Petitions
Accused Products
Abstract
A soil pipe coupler. There is an annular portion formed from an elastomer having a hardness of 95 on the Shore Durometer A Scale. A ridge is formed about the portion'"'"'s inner surface to be inserted between the ends of the two pipes to be coupled. A clamp means is included and clamping sleeves formed from an elastomer having a hardness of 95 on the Shore Durometer A Scale are formed integrally with the annular portion. The clamping sleeves extend axially from either side of the annular portion to overlap a length of each pipe to be joined. Each of the clamping sleeves is formed with an annular groove on the outer surface to position a clamp. The annular grooves have a ridge to support a clamp whereby the pipes to be coupled are inserted into the clamping sleeves until the pipe ends abut the ridge of the annular portion. The clamping means are tightened to shrink the clamping sleeves about the pipes to be coupled.
98 Citations
12 Claims
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1. An unshielded soil pipe coupler comprising:
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an annular portion formed from an elastomer having a suitable hardness; a ridge formed about the inner surface of the annular portion to separate the ends of two pipes to be coupled; clamping means; a clamping sleeve of an elastomer having a suitable hardness and formed integrally with the annular portion, said clamping sleeves extending axially from either side of the annular portion to overlap a length of each pipe to be joined, each said clamping sleeves being formed with an annular groove to receive clamping means and defined, in part, by an outwardly projecting ridge to confine the outer edge of the clamping means; at least one outwardly projecting continuous circumferential ridge formed in the annular groove to separate the clamping means from the clamping sleeve and to stiffen the clamping sleeve; axially extending inlets extending from at least one side toward the other side in the outer surfaces of the annular portion forming a plurality of equally spaced fingers of a suitable hardness to facilitate a change of shape of the clamping sleeves; whereby the pipes to be coupled may be inserted into the clamping sleeve until the pipe ends abut the ridge of the annular portion, the clamping means being tightened to bend the fingers and shrink the clamping sleeves about the pipes to be coupled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification