Receptacles – Closures – Removable closure retained by friction
Patent
1995-05-31
1999-11-16
Shoap, Allan N.
Receptacles
Closures
Removable closure retained by friction
220601, 220661, B65D 640, B65D 3900
Patent
active
059841389
ABSTRACT:
Tanks, such as air tanks and other compressed gas tanks as well as fuel tanks, have bushings formed by flowdrilling holes in the tanks after the tanks have been configured in substantially their final shape. The bushings are of the same material and unitary with the tank walls and have smooth bores which receive push-to-connect couplings. The push-to-connect couplings have at least two annular barbs which engage the walls of the bushings with an interference fit so as to prevent withdrawal of the push-to-connect couplings. The push-to-connect couplings are sealed with O-rings disposed between the barbs. The depth of insertion is determined by an annular flange on an outer collar of the push-to-connect coupling which engages the outside surface of an outer rim of the bushing.
REFERENCES:
patent: 1179853 (1916-04-01), McCulloch
patent: 3939683 (1976-02-01), van Geffen
patent: 4175413 (1979-11-01), van Geffen
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patent: 4298221 (1981-11-01), McGugan
patent: 4428214 (1984-01-01), Head, Jr. et al.
patent: 4454741 (1984-06-01), Hoogenboom
patent: 5230539 (1993-07-01), Olson
patent: 5340166 (1994-08-01), Puttonen et al.
Dana Corporation
Eloshway Niki M.
Shoap Allan N.
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