Fitting for flexible tubing

Details Fitting for flexible tubing Fitting for flexible tubing

2005-05-31

2005-05-31

Dunwoody, Aaron (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S259000, C285S148160, C411S412000

Reexamination Certificate

active

06899355

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.

REFERENCES:
patent: 928237 (1909-07-01), Baird
patent: 2522684 (1950-09-01), Mitchell et al.
patent: 3408099 (1968-10-01), Appleton
patent: 4603888 (1986-08-01), Goodall et al.
patent: 4875641 (1989-10-01), Endo et al.
patent: 4875719 (1989-10-01), Mylett
patent: 5251938 (1993-10-01), Erickson
patent: 6019559 (2000-02-01), Myers et al.
patent: 3402525 (1985-05-01), None

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