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US 11,292,042 B1Granted
Pulling member
AssigneeConfident & Competent, Inc.
InventorMichael D. Wilson
Life of this patent
Estimating the term…
Abstract
A two piece pulling member is used to form a branched opening with a shoulder in a side wall of a malleable pipe without requiring the pulling member to be inserted from an end of the pipe. The pulling member has a base and a top that are individually placed through the initial hole in the pipe. The base and the top are assembled into a unit inside the pipe.
Claims11
A two piece cylindrical pulling member for forming a branched opening with a shoulder in a side wall of a malleable pipe when pulled by a pulling rod, the pulling member having a radius and a depth and comprising:
- (a) a base having:
- (i) a square portion having an upwardly facing interior face, a central opening, front and rear opposed ends, and a depth about 50 percent of the depth of the pulling member;
- and (ii) two upwardly extending circular segment portions at the front and rear opposed ends with a depth equal to the depth of the pulling member, the circular segments defining parallel opposed chords and having an apothem about 71 percent of the radius of the pulling member and having an arc length of about 90 degrees;
- and
- (b) a top having:
- (i) a square portion having a downwardly facing interior face, a central opening, left and right opposed ends, and a depth about 50 percent of the depth of the pulling member;
- and (ii) two downwardly extending circular segment portions at the left and right opposed ends with a depth equal to the depth of the pulling member, the circular segments defining parallel opposed chords and having an apothem about 71 percent of the radius of the pulling member and having an arc length of about 90 degrees, such that the top fits onto the base with the interior face of the base and the interior face of the top in contact to form a cylinder.
4 more elements
An assembly for forming a branched opening with a shoulder in a side wall of a malleable pipe, the assembly comprising:
- (a) a two piece pulling member having a radius and a depth and comprising:
- (i) a base having:
- (1) a square portion having an upwardly facing interior face, a central opening, front and rear opposed ends, and a depth about 50 percent of the depth of the pulling member;
- and (2) two upwardly extending circular segment portions at the front and rear opposed ends with a depth equal to the depth of the pulling member, the circular segments defining parallel opposed chords and having an apothem about 71 percent of the radius of the pulling member and having an arc length of about 90 degrees;
- and (ii) a top having:
- (1) a square portion having a downwardly facing interior face, a central opening, left and right opposed ends, and a depth about 50 percent of the depth of the pulling member;
- and (2) two downwardly extending circular segment portions at the left and right opposed ends with a depth equal to the depth of the pulling member, the circular segments defining parallel opposed chords and having an apothem about 71 percent of the radius of the pulling member and having an arc length of about 90 degrees, such that the top fits onto the base with the interior face of the base and the interior face of the top in contact to form a cylinder;
- and
- (b) a pulling tool subassembly comprising:
- (i) a pulling rod for attachment to the pulling member;
- and (ii) a pulling tool for applying a pulling force to the pulling rod to pull the pulling member through a hole in a side wall of a malleable pipe to form a branched opening with a shoulder.
8 more elements
A method for forming a branch opening with a shoulder in a side wall of a malleable pipe, the method comprising:
- (a) obtaining a malleable pipe with a hole in a side wall;
- (b) obtaining a two piece pulling member having a radius and a depth and comprising:
- (i) a base having:
- (1) a square portion having an upwardly facing interior face, a central circular opening, front and rear opposed ends, and a depth about 50 percent of the depth of the pulling member;
- and (2) two upwardly extending circular segment portions at the front and rear opposed ends with a depth equal to the depth of the pulling member, the circular segments defining parallel opposed chords and having an apothem about 71 percent of the radius of the pulling member and having an arc length of about 90 degrees;
- and (ii) a top having:
- (1) a square portion having a downwardly facing interior face, a central circular opening, left and right opposed ends, and a depth about 50 percent of the depth of the pulling member;
- and (2) two downwardly extending circular segment portions at the left and right opposed ends with a depth equal to the depth of the pulling member, the circular segments defining parallel opposed chords and having an apothem about 71 percent of the radius of the pulling member and having an arc length of about 90 degrees, such that the top fits onto the base with the interior face of the base and the interior face of the top in contact to form a cylinder;
- and;
- (c) inserting the base of the pulling member through the hole in the pipe;
- (d) inserting the top of the pulling member through the hole in the pipe;
- (e) fitting the top of the pulling member onto the base of the pulling member with the interior face of the base and the interior face of the top in contact to form the pulling member;
- (f) attaching a pulling rod to the pulling member;
- and
- (g) pulling on the pulling rod to pull the pulling member through the hole to form a branched opening with a shoulder.
12 more elements
Dependencies are inferred from the claim text.