Drain guard

Details Drain guard Drain guard

1974-12-19

1976-07-20

Granger, Theodore A.

Liquid purification or separation

Structural installation

Grated inlet surface drain

E03F 100

Patent

active

039705595

ABSTRACT:
A drain guard is disclosed having a tubular body with a funnel-shaped portion at its upper end. The tubular body has an annular recess extending about the inside periphery thereof proximate the bottom end of the guard. The recess receives a sealing grommet therein for sealing the space between a tube on which the guard is positioned and the inner periphery of the tubular portion of the guard. Stop lugs are positioned about the inner periphery of the tubular portion of the guard at the junction of the funnel-shaped end portion thereof for limiting the upward movement of the tube on which the guard is positioned through the drain guard. A liquid permeable seat is positioned on the funnel-shaped end portion of the drain to permit the ingress of water or other liquids with respect to the drain guard. In an alternative embodiment of the invention, a rubber grommet is affixed to the inside periphery of the drain guard at the junction of the tubular and funnel shaped portions thereof with the grommet serving to limit the upward movement of the tube on which the guard is positioned and to seal the space between the guard and the tube to inhibit the passage of liquids therebetween.

REFERENCES:
patent: 2859875 (1958-11-01), Wilkie
patent: 3040895 (1962-06-01), Sisk
patent: 3670894 (1972-06-01), Friedl
patent: 3674149 (1972-07-01), Donalson
patent: 3751078 (1973-08-01), O'Brian
patent: 3784235 (1974-01-01), Kessler et al.
patent: 3809412 (1974-05-01), Glover

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