US2024475A

US2024475A - Drain strainer

Info

Publication number: US2024475A
Application number: US17478A
Authority: US
Inventors: Rossman Jess
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-04-20
Filing date: 1935-04-20
Publication date: 1935-12-17
Anticipated expiration: 1952-12-17

Description

Dec. 17, 1935. J RQSSMAN 2,024,475

DRAIN STRAINER Filed April 20, 1935 .7144 A TTORNE Y Patented Dec. 17, 1935 UNITED STATES PATENT OFFICE Application April 20, 1935, Serial No. 17,478

1 Claim.

My invention relates to improvements in drain strainers. It relates particularly to the type of strainers which are adapted to be removably fitted in the outlet drain pipe of a wash bowl,

bath tub, sink or similar water container, and which is adapted to receive the usual rubber drain plug.

One object of my invention, is to provide a novel strainer of the kind described, which is adapted for use in diiferent styles of outlet fittings, and which has novelmeans for being securely held in its operative position and without liability of its being accidentally withdrawn with the withdrawal of the rubber plug.

A further object of my invention is to provide novel securing means adapted to have holding engagement with the usual bridge or baflle in the drain pipe, when the bridge or baffle is at diiferent distances from the inlet of the drain pipe.

Another object of my invention, is to provide a novel strainer, which is simple, cheap to make, strong, durable, not likely to get'out of order, which is readily applied to its operative position, which can be as readily removed for cleaning, and which is efiicient in its operation.

vIn the accompanying drawing which illustrates my invention,

Fig. l is' a vertical sectional view showing my improved drainer in operative position in the drain pipe of a wash bowl, portions only of the bowl and drain pipe being shown.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Figs. 3 and 4 are respectively top and bottom 35 viewsof the spiral spring.

Similar characters of reference designate similar parts in the different views.

My improved strainer is provided with a cup like body I, having in its bottom small perfora- 40 tions 2. The upper end of the body I has a diverging annular flange 3 which is adapted to rest on the upper side of the bottom of the bowl 4.

The upper end of the inner side of the body I is slightly flaring, as shown, to conform to the periphery of the usual rubber plug 5, which is adapted to be seated in the body I, when the latter is seated in the drain pipe 6.

For securely holding the body I in the drain pipe 6, while permitting the body I to be revolved in opposite directions, I provide a spiral member 5 I, which, preferably, is a coil spring, the upper end of which is fastened in any suitable manner, as by a screw or rivet 3, to the center of the bot tom of the body I.

The coil spring 1 extends downwardly a dis- 10 tance sufficient for it tobe extended past and to be screwed into holding engagement with the usual baffle bridge 9 with which the drain pipes of this type are commonly provided.

In applying the strainer to a container, as the 15 wash bowl 4, the spiral spring I is inserted into the drain pipe 6 and the body I is inserted bottom down into the drain pipe 6 so as to be seated therein with the flange 3 resting on the upper'side of the bottom of the bowl, the body 20 being rotated in a direction such that the spiral spring will be screwed into holding engagement with the bridge 9. When the body I is seated, the spiral spring I will releasably hold it in its operative position, against any pulling effect caused 25 by withdrawal of the plug 5.

When the strainer is to be removed for cleaning, it is revolved in the opposite direction, thereby unscrewing the spiral spring from engagement with the bridge 9, thus releasing the strainer so that it may be removed.

Various modifications of my invention, within the scope of the appended claim, may be made 7 without departing from its spirit.

What I claim is:- A drain strainer having a perforate cup shaped body adapted to be removably fitted in the open upper end of a drain pipe having a transverse bridge below and spaced from said end, said body being adapted to have a stop plug removably fitted therein, and a spiral member attached at one end to and extending below said body and adapted to be screwed into and out of holding engagement with said bridge.

JESS ROSSMAN.