Holding tank drain plug

Details Holding tank drain plug Holding tank drain plug

2008-07-15

2008-07-15

Ridley, Richard W L (Department: 3682)

Lubrication

Automobile crank and gear case service

C215S357000

Reexamination Certificate

active

10828808

ABSTRACT:
The present invention is an apparatus for draining fluid from a holding tank. The apparatus further comprises a first portion having an axial bore extending therethrough, the axial bore being defined by an upper end and a lower end. An outer wall surrounds the axial bore extending from the lower end to the upper end. The upper end is adapted to engage an existing drain of the holding tank such that fluid communication is established between the axial bore and the holding tank. At least one notch is formed within the outer wall of the bore. A second portion has a plate member with a plurality of leg members. The lower end of the bore being is permanently affixed to the plate member. A reservoir surrounds the leg members. The reservoir has a base portion with an external wall extending upward therefrom to surround the leg members. Each leg member extends downward into the base portion and being permanently affixed thereto. The base portion has an aperture for providing an outlet for drainage of the fluid from the holding tank.

REFERENCES:
patent: 2509426 (1950-05-01), Fransen
patent: 3836117 (1974-09-01), Panicali
patent: 4470577 (1984-09-01), Warwick
patent: 5368181 (1994-11-01), Myers
patent: 6443427 (2002-09-01), Coupal

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