Dennis R Sweat

US Patent:

20020167166, Nov 14, 2002

Filed:

Apr 8, 2002

Appl. No.:

10/118455

Inventors:

Donald Klein - Jackson TN, US
Dennis Sweat - Bells TN, US

International Classification:

F16L043/00

US Classification:

285/239000, 285/251000, 285/259000, 285/179000

Abstract:

An improved fitting having an improved flexible tubing tip to connect to flexible tubing, e.g., FUNNY PIPE brand polyethylene pipe, used for sprinkling systems and other fluid delivery systems. According to one aspect of the present invention, one or more annular barbs are positioned at or toward the back of the portion of the fitting inserted into the flexible tubing, with a threaded or spiral or helix portion being positioned at the front of the portion of the fitting inserted into the flexible tubing. According to another aspect of the present invention, the threaded or spiral or helix portion of the fitting is slightly tapered to facilitate insertion into the flexible tubing. According to yet another aspect of the present invention, a double helix spiral thread is used.