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Publication numberUS1315163 A
Publication typeGrant
Publication dateSep 2, 1919
Filing dateOct 8, 1918
Publication numberUS 1315163 A, US 1315163A, US-A-1315163, US1315163 A, US1315163A
InventorsNathan Schwartz
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Nathan schwartz
US 1315163 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Patented Sept. 2, 1919..



Specification of Letters Patent.

Patented Sept. 2, 1919.

Application filed October 8, 1918. Serial No. 257,417.

To all whom it may concern."

Be it known that I, NATHAN SCHWARTZ, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Separator, of which the-following is a full, clear, andexact description.

The object of the invention is to provide a new and improved separator more especially designed for use in respirators, gas masks .and similar devices, and arranged to dissolve, neutralize, filter or separate poisonous fumes, smoke, gases or dust contained in the air breathed b the user. Another object is to permit 0 freeing the air of, at

separator with neutralizing agents whenever deemed necessary.

With these and other objects in view, the invention consists of certain novel features of cbnstruction as hereinafter shown and described and then specifically pointed out in the claims. i

A practical embodiment of theinvention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a perspective view of the separator;

Fig. 2 is an enlarged sectional side elevation of the same; and v Fig. 3 is a plan view of the same with part brokenout.

Thecasing 10 of the separator is made of wood or light metal and is provided with partitions 11 and 12 to divide the interior of the casing into chambers 13, 14 and 15. The bottomlfi of the casing 10 is provided with an inlet opening 17 across which is stretched wire gauze 18 to prevent large solid matter from entering the separator. The partition 11 is provided with-an"open-' ing 20 across which is stretched wire gauze 21, a large mesh textile fabric 22 such as grit gauze, and a piece of silk 23, the said members 21, 22 and 23 overlying one the other to provide a filtering means. The'parti-tion 12 is provided with an. opening 25 across which is stretched wire gauze 26.

" The openings 17 and 25 are located in the.

upper portions of the bottom 16 and the par with an outlet neck 30 connected by a tube 31 'or other means with a respirator, gas mask or the like devlce or contrlvance, for

use indrawing the air to beinhaled through the separator.

The chamber 13 contains a receptacle 40, preferably made of wire gauze, and filled with charcoal or other filtering material 41, and the saidreceptacle 40 is provided with a removable cover 42 extending in the top opening of the chamber 13. The cover 42 is normally held in closed position by the bottom 43 of a spring catch 44 attached by a screw 45 to the partition 11. The filling material 41 is charged with a reacting chemical agent for dissolving, neutralizing or separating, at least, one of the poisonous elements contained in the .fumes, smoke or gases in the air drawn through the separator. The chamber 14 is filled with an absorbent material such as a sponge or the like saturated with another chemical agent for dissolving,

.neutralizing or separating another of the poisonous elements contained in the fumes, smoke or gases with which the a r may be charged. The upper open end 51 of the chamber 14 is normally closed by a hinged lid or cover 52 held in closed position by a member 53 of the spring catch 44. The

sponge 50 is charged with a chemical for dissolving, neutralizing or separating another poisonous element that ma Ybe contained in the air passing through t e caslng. Thus the charcoal 41 may be saturated with a solution of sodium hydrate for neutralizing carbon dioxid that is contained in the air passing through the casing, and the sponge 50 may be saturated with a suitable chemical for neutralizing carbon monoxid that may be in the air andwhich is not neutralized by the solution of sodium hydrate contained in' the charcoal. In practice, the charcoal 41 is referably in a granular state and any dust rom the charcoal and any dust that may be in the air passing through the casing 1sprevented from passing from the chamber 13 into the chamber 14 by the superimposed layers 21, 22 and 23 above mentioned.

It is understood that by drawing the air through the casing in a zigzag manner it comes in contact with most of the charged K ner the sponge 50 may be removed from the compartment 14 for cleaning or other purposes or for conveniently replacing it by another sponge or other absorbent material.

Having thus described my invention, I claim as newand desire to secure by Letters Patent 1. Aseparator for respirators, gas masks and the like, comprising a receptacle having at least two chambers of which one is provided with an inlet and another is provided with an outlet, the chambers being connected with each other for the passage of air, charged with extraneous matter, from one to the other, one of the chambers containinga wire gauze cage having a removable cover and charged with a filtering material and a neutralizing agent and the other chamber containing an absorbent material charged with another' neutralizing agent, the said chamber containing the absorbent material having a cover for removal of the absorbent material and recharging it with a neutralizing agent, and means for holding the covers of the chamber and cage closed.

2. A separator for respirators, gas masks and the like, comprising-a casing provided with partitions dividing it into chambers, the partitions being provided with openings arranged out of alinement with each other, and covered with filtering means, the casing being provided with an inlet opening in alinement with the opening of the partition adjacent the end of the casing opposite that having the inlet opening, said and in alinement with each other, one of the chambers containing a filtering material and a neutralizing agent and the other an absorbent material, and closures for the openings in the top of the casing.

4. A separator for respirators, gas masks and the like, comprising a casing having openings in its top and provided with a partition dividing it into chambers and having an opening covered with a separating material, the chambers having inlet and outlet openings respectively in alinement with each other and out of alinement with the opening of the partition, a cage in the chamber having an inlet and containing a filtering material and a neutralizing agent and the chamber having the outlet containing an absorbent material and covers for the chambers, one of the covers also serving as a closure for the cage.

5. In a separator for respirators, gas masks and the like, a casing having two communicating chambers, one for receiving a cage containing a filtering material and the other for containing an absorbent material, the casing having openings leading to the said chambers, a cover for the opening of the chamber containing the absorbent material, a cover for the cage and opening of the chamber containing the same, and a spring catch secured upon the casing and having its ends engaging the said covers.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3149940 *Jul 10, 1961Sep 22, 1964Drager Otto HDust filter in series with parallel rows of gas filters
US3417549 *Aug 21, 1967Dec 24, 1968Blanche E. LeosisExhaust filter device
US4088461 *Jul 12, 1976May 9, 1978Auergesellschaft GmbhCombination of a supplementary filter and respirator filter
US4337276 *Feb 19, 1980Jun 29, 1982Toppan Printing Company, LimitedMethod for storing produce and container and freshness keeping agent therefore
US4384972 *Jun 15, 1978May 24, 1983Toppan Printing Co., Ltd.Foodstuff freshness keeping agents
US4684510 *Dec 20, 1985Aug 4, 1987Hewlett-Packard CompanyMethod and apparatus for prevention of atmospheric corrosion of electronic equipment
US4859220 *Feb 16, 1988Aug 22, 1989Teledyne Industries, Inc.Cabinet controller
U.S. Classification96/138, 55/479, 55/482
Cooperative ClassificationB01D46/30