US 12,110,990 B2
Flexible drain pipe
J. Todd Grayson, McComb, OH (US)
Assigned to CRUSHPROOF TUBING COMPANY, McComb, OH (US)
Filed by CRUSHPROOF TUBING COMPANY, McComb, OH (US)
Filed on Aug. 4, 2023, as Appl. No. 18/365,408.
Application 18/365,408 is a continuation of application No. 16/600,678, filed on Oct. 14, 2019, granted, now 11,761,564.
Claims priority of provisional application 62/860,848, filed on Jun. 13, 2019.
Claims priority of provisional application 62/744,930, filed on Oct. 12, 2018.
Prior Publication US 2023/0383873 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F16L 11/15 (2006.01); E03C 1/284 (2006.01)
CPC F16L 11/15 (2013.01) [E03C 1/284 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drain pipe assembly, comprising:
a first flexible pipe including a first end, a second end, and a plurality of convolutions formed therein, the plurality of convolutions defined by alternating ribs and valleys, and the first flexible pipe being formed of an elastomeric material, the elastomeric material of the flexible pipe configured to compress and form a substantially fluid-tight seal, the first end of the first flexible pipe being manually cut back at a predetermined location to establish a desired distance between the first end and the second end of the first flexible pipe and to form a single sealing convolution, the single sealing convolution being a first complete convolution of the plurality of convolutions at the first end;
a first female connector disposed proximate the first end of the first flexible pipe and configured to receive the single sealing convolution of the first flexible pipe, a flange of the first female connector positioned behind the single sealing convolution and received in one of the valleys disposed immediately adjacent the single sealing convolution of the first flexible pipe; and
a retainer coupled to the flexible pipe and disposed proximately below each of the first end of the flexible pipe and the first female connector, the retainer configured to receive a portion of the flexible pipe by engaging with a convolution of the plurality of convolutions, thereby preventing the flexible pipe from moving relative to the retainer.
 
13. A kit for a drain pipe assembly, comprising:
a first flexible pipe including a first end, a second end, and a plurality of convolutions formed therein, the plurality of convolutions defined by alternating ribs and valleys, and the first flexible pipe being formed of an elastomeric material, the elastomeric material of the flexible pipe configured to compress and form a substantially fluid-tight seal, the first end of the first flexible pipe being configured to be manually cut back at a predetermined location to establish a desired distance between the first end and the second end of the first flexible pipe and to form a single sealing convolution, the single sealing convolution being a first complete convolution of the plurality of convolutions at the first end;
a first female connector including a flange and configured to be disposed proximate the first end of the first flexible pipe and configured to receive the single sealing convolution of the first flexible pipe;
a first male coupling configured to be coupled to the first female connector to compress the single sealing convolution;
a retainer configured to dispose a portion of the flexible pipe therethrough to form and retain a trap in the first flexible pipe, the retainer coupled to the flexible pipe and disposed proximately below each of the first end of the flexible pipe and the first female connector, the retainer configured to receive the portion of the flexible pipe by engaging with a convolution of the plurality of convolutions, thereby preventing the flexible pipe from moving relative to the retainer; and
a clamp configured to fit around the second end of the first flexible pipe, the clamp operable to compress and couple the second end of the first flexible pipe to a pipe received therein.
 
19. A method of installing a drain pipe assembly, comprising:
providing a kit for a drain pipe assembly including
a first flexible pipe including a first end, a second end, and a plurality of convolutions formed therein, the plurality of convolutions defined by alternating ribs and valleys, and the first flexible pipe being formed of an elastomeric material, the elastomeric material of the flexible pipe configured to compress and form a substantially fluid-tight seal,
a first female connector configured to be disposed proximate the first end of the first flexible pipe;
a first male coupling configured to be coupled to the first female connector;
a retainer coupled to the flexible pipe and disposed proximately below each of the first end of the flexible pipe and the first female connector, the retainer configured to receive a portion of the flexible pipe by engaging with a convolution of the plurality of convolutions, thereby preventing the flexible pipe from moving relative to the retainer;
cutting back, manually, the first end of the first flexible pipe at a predetermined location to establish a desired distance between the first end and the second end of the first flexible pipe and to form a single sealing convolution, the single sealing convolution being a first complete convolution of the plurality of convolutions at the first end;
disposing the single sealing convolution proximate the first end of the first flexible pipe within the first female connector and coupling the first female connector to the first male coupling of a waste line to form the seal; and
coupling the second end of the first flexible pipe to a sink basin.