Stopper for opening

Details Stopper for opening Stopper for opening

1981-03-02

1982-06-15

Hall, George T.

Receptacles

Closures

Removable closure retained by ductile in situ deformation

220DIG19, B65D 3900

Patent

active

043346324

ABSTRACT:
A stopper for plugging an opening formed in a panel comprises a flange portion for pressed contact with the surface of the panel and an insertion portion extended downwardly from the lower surface of the flange portion and adapted for insertion into the opening in the panel. The insertion portion is formed in the shape of a boss, provided in the interior thereof with an annular groove which opens into the upper surface of the insertion portion, and gives rise to outer circumferential walls of a small thickness. The outer circumferential walls are provided with a plurality of internally hollowed engaging projections disposed in the radial direction and are provided on the outer wall surfaces thereof with engaging claws adapted for fast engagement with the opening in the panel. The stopper thus constructed possesses watertightness and ability to provide tight fastening and is easy of operation.

REFERENCES:
patent: 3021975 (1962-02-01), Sarafinas
patent: 3168961 (1965-02-01), Yates
patent: 4290536 (1981-09-01), Morch

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