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Publication numberUSRE11941 E
Publication typeGrant
Publication dateOct 22, 1901
Filing dateApr 11, 1901
Publication numberUS RE11941 E, US RE11941E, US-E-RE11941, USRE11941 E, USRE11941E
InventorsThomas N. Thomson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US RE11941 E
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



SPECIFICATION forming part of Bessued Letters Patent No. 11,941, dated October 22, 1901. Original No. 863.762, dated February 26, 1901. Application for reissue filed April 11, 1901. Serial No. 55,418.

To all whoml it 11i/wy concern;

Beit known that I, THOMAS N. THOMSON, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Disinfecting Appliances, of which the following Yis a specitcation, reference being had therein to the accompanying drawings.

This invention relates to plumbing accessories; and the object of the invention is to provide a convenient and economical device for diiusiug disinfectant through the plumbing system of the habitation where it is used.

Tothis end the invention consists of the construction, arrangement, and combination of the` several parts herein described, and illustrated in thc'accompanying drawings, in which- Figure 1 is a side elevation of my disinfecting appliance when set in the upright position for use. Fig. 2 is a cross-section taken on the line a: a: of Fig. 1.

In the drawings, 1 designates a can or receptacle conical in form, preferably made of tin, and provided near its base with a bottom y 2, which is designed to be soldered into its when the coloring is less noticeable.

place after the disiufecting salts are placed within. The said disinfect'ing salts may be cast or molded into cakes in the shape of a frustum of a cone, so that they can be readily placed within by hand during the lmaking of the device. The upper end of the can has an opening 3, designed as an air-passage, and intermediate of the base and the top is a small water-passage 4. The opening 3 is covered .with a hood 5, which is suitably attached near the apex of the conical can, leaving air-passages downward at 6 6, which passages, opening below the level of 3, are designed to form an air-trap when the can is submerged.

The operation of the device is as follows: The receptacle of the can is filled about threefourths full with permanganate of potassium or any other suitable disinfecting salts.l I prefer permanganate of potassium, among other reasons, because of the coloring which it gives to the waterin which it is used, thus evidencing the ldiffusion of the disinfectant,

so that replenishment may be attended to The can, with its contents, lis designed to be set upright on the bottom of a flushing-tank, such there may be in the can and dissolving'somo of the disinfecting salt 7.` `When the device is fully submerged,the water will stand within the hood about on the level of the line y y, th us sealing the passage 3 against any circulation of water therethrough. This is aprovision against wasting of the disinfectant, since if the passage '3 were left open the liquid within the upper partofthe can becoming heavier with the solution would `pass-outward at 4 grad uallyand diiuse the con tents continually through the flushing-tank. By preventing the said-circulation through the openings the device may sit in a flushing-tank for an unlimited -amount of time without diliusing any appreciable amount of the disinfectant, except wh en the water is drawn from the tank as it is casually used. It will be readily seen that when the water is drawn from thetank or when it sinks below the level of the opening 4 the solution will discharge into the water of the tank until it sinks to the level of the opening 4. In this way a small or limited portion of solution of the contents of the can is diffused into the flushing-tank every time that it is' drawn Off, and it is evident that the oftener it is draw-n oi the lessvlengthof time it will have for becominga strong solution,and hence things desirable', so that a certain amount of disinfecting will he accomplished in any event and the ,disinfectant not needed is preserved from waste when the tank is not used.

I do not wish to be conned to the exact construction shown in the drawings, as it is evident that the details of my invention may be varied without departing from the spirit of the invention. For example,the receptacle might be made any shape instead of coneshaped, as shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Asa new article of manufacture, a disinfecting device comprised in a cono-shaped receptacle adapted to be immersed in a flushing-tank and havinga perforation in the side thereof adapted to serve as a passage for water therethrough and a perforation in the apex of the cone, the said perforation covered with an air-tight hood, the sides thereof extending downward snbstan tially parallel tO the convex sides of the cone, and permitting passage of air between the hood andthe walls of the cone and adapted to be sealed by the water when the cono is set upright on its base in water whose level rises above the level of the lower edges of the hood aforesaid, the said receptacle adapted to contain any suitable disinfecting salt to be diiused by solution into the water making ingress and egress of the said receptacle during the operation of the device, substantially as specified.

2.v A dsinfecting device consisting of a receptacle adapted to contain a disinfectin g subc stance and tobe immersed in a dashing-tank and provided with two openings, one higher than,V the other, the lower one for the passage of water in and out, and the upper one for and inclose said opening forming an air-passage between the walls thereof and said receptacle adapted to be sealed by the water in which the receptacle is immersed when the level of the same rises above the lower edge of thel hood. Y

In testimony whereof I atlx my signature in the'presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5422074 *Jul 15, 1993Jun 6, 1995Envirotrust Technologies, Inc.Methods for treating infectious wastes