초록 ▼

Complementary elongated members of generally semi-cylindrical cross-section are provided. These members are assembled on pipes to be joined so as to enclose the joint between the pipes, and the members include abutting edges extending lengthwise of the pipes and arranged to be bonded together. The c

Complementary elongated members of generally semi-cylindrical cross-section are provided. These members are assembled on pipes to be joined so as to enclose the joint between the pipes, and the members include abutting edges extending lengthwise of the pipes and arranged to be bonded together. The coupler is provided with one or more recesses extending across the abutting edges of the elongated members. Reinforcing elements are received in each of these recesses and extend across the abutting edges for reinforcing the coupler. The reinforcing members are bonded to the surfaces of the recesses and to the elongated members. In one form of the invention spaced lugs are provided on each of the elongated members and extend transversely of the line formed by the abutting edges. The reinforcing members are in a form of flat keys which are received between spaced lugs, extend transversely across the line of the abutting edges and are bonded to the lugs and to the elongated members. In another form of the invention the recesses extend lengthwise of the coupler and are formed by rabbets provided in the elongated members adjacent the abutting edges. A spline is received within each of the recesses, extends lengthwise of the couplers so as to cover the line of the abutting edges, and is bonded to the walls of the recess. The abutting edges of the elongated members may be formed in a variety of interlocking shapes so as to further insure a water-tight seal.

대표청구항 ▼

A pipe coupler for forming a water-tight seal on an existing pipe comprising: (a) first and second elongated complementary members of generally semi-cylindrical cross-section, said members having abutting edges and being arranged to enclose a leak or joint in the existing pipe; (b) said first and se

A pipe coupler for forming a water-tight seal on an existing pipe comprising: (a) first and second elongated complementary members of generally semi-cylindrical cross-section, said members having abutting edges and being arranged to enclose a leak or joint in the existing pipe; (b) said first and second members including a plurality of spaced lugs projecting from the walls of said members and extending transversely of said abutting edges, the space between each pair of said lugs on said first and second members being aligned and providing a recess having opposing faces and said recess extending across said abutting edges; (c) reinforcing elements received in each of said recesses and extending across said abutting edges for reinforcing said coupler, each of said reinforcing elements having a constant thickness over its entire extent measured in the direction transverse to said faces and being approximately equal to the spacing between adjacent lugs and each of said reinforcing elements having tight engagement with the opposed faces of said spaced lugs; and (d) means for holding said reinforcing elements in said recesses and for causing said abutting edges to adhere to each other.