Tube couplings

Details Tube couplings Tube couplings

1993-02-25

1994-12-06

Nicholson, Eric K.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285322, 285308, F16L 37092

Patent

active

053704231

ABSTRACT:
The disclosure relates to tube couplings having a moulded plastics coupling body with a throughway having a tapered cam surface extending to an open end. A moulded plastics collet is located in the open end of the coupling body and has an annular portion with an encircling flange at the outer end of the body and four equi-spaced slots extending into the collet from the other end to divide the collet into four resilient fingers which are pressed inwardly by the tapered cam surface to engage and grip a tube extending through the collet into the body. The slots have T-shaped ends adjacent the annular part of the collet to increase the flexibility of the fingers at their roots.

REFERENCES:
patent: 3653689 (1972-04-01), Sapy et al.
patent: 4304426 (1981-12-01), Francis
patent: 4573716 (1986-03-01), Guest
patent: 4653781 (1987-03-01), Sheets et al.
patent: 4915421 (1990-04-01), Dennany, Jr.
patent: 4923220 (1990-05-01), Guest et al.
patent: 5042848 (1991-08-01), Shiozaki

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