Plastic retainer for fluid coupling

Details Plastic retainer for fluid coupling Plastic retainer for fluid coupling

1991-10-16

1992-11-10

Reese, Randolph A.

Pipe joints or couplings

Essential catch

Leaf spring

285 93, 285921, 285320, 285924, 29237, F16L 3700

Patent

active

051618320

ABSTRACT:
A unique plastic retainer is disclosed having a pair of axially spaced cylindrical rings. Retainer arms for retaining an upset portion of a tube within a housing bore extend from a rear ring, and a plurality of webs connect the front and rear cylindrical rings of the retainer. When a tube is initially inserted into the housing bore, it contacts an inner periphery of the arms. The retainer then moves axially forwardly within the bore for a small distance until the forward ring abuts a seal package within the housing. Further movement of the retainer is then prevented, and the upset portion of the tube causes the arm to flex radially outwardly at a flex point in the rear ring. The upset portion may then move axially beyond the arms into a fully connected position within the housing.

REFERENCES:
patent: 2441344 (1948-05-01), Bosworth
patent: 3711125 (1973-01-01), Dehar
patent: 3805567 (1974-04-01), Agius-Sinerco
patent: 4524995 (1985-06-01), Bartholomew
patent: 4610468 (1986-09-01), Wood
patent: 4681351 (1987-07-01), Bartholomew
patent: 4890866 (1990-01-01), Arp
patent: 4915421 (1990-04-01), Dennany, Jr.
patent: 4944536 (1990-07-01), Bartholomew
patent: 4964658 (1990-10-01), Usui et al.
patent: 5002315 (1991-03-01), Bartholomew
patent: 5009454 (1991-04-01), Bartholomew

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