Tubing and connector system

Details Tubing and connector system Tubing and connector system

2006-09-05

2006-09-05

Bochna, David (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S903000, C285S242000

Reexamination Certificate

active

07100947

ABSTRACT:
A tubing and connector system including a plastic tubing or hose having a helical outer surface, a plastic lock nut having a helical internal surface with the same thread pitch as the pitch of the tubing outer surface, and a fitting having several barbs formed on its outer surface. The tubing and connector system has few parts and is easy to assemble by having the inner surface of the tubing engage the barbs of the fitting, and the lock nut, being mounted on the outer surface of the tubing, is rotated over the tubing and the fitting so as to squeeze the tubing between the lock nut and the fitting. Disassembly for washing is also easily accomplished by backing the lock nut away from the fitting and pulling the tubing off of the fitting.

REFERENCES:
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patent: 4457544 (1984-07-01), Snow et al.
patent: 4625998 (1986-12-01), Draudt et al.
patent: 4729583 (1988-03-01), Lalikos et al.
patent: 5042844 (1991-08-01), Iida et al.
patent: 5738385 (1998-04-01), Homann et al.
patent: 5794986 (1998-08-01), Gansel et al.
patent: 5984375 (1999-11-01), Merrett
patent: 6209929 (2001-04-01), Ikegami et al.
patent: 6581979 (2003-06-01), Ikegami et al.
patent: 2229988 (1990-09-01), None

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