US1502451A

US1502451A - Respirator

Info

Publication number: US1502451A
Application number: US362195A
Authority: US
Inventors: William H Wood
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-03-01
Filing date: 1920-03-01
Publication date: 1924-07-22
Anticipated expiration: 1941-07-22

Description

July 22, 1924.

W. H. WOOD HESPIRATOR Filed March 1,

jz/e zzz d f %6' g M716 Patented July 22, 1924.

PATENT WILLIAM H. Wool), or soU'rI-I; EUCLID, OHIO.

RESPIRATOB.

Application filed March 1, 1920.' Serial No. 362,195.

To all whom it may-concern:

Be it known that I, VVILLIAM H. 'Woon, a citizen of the United States, residing at South Euclid, in the county of Cuyahoga and Stateof Ohio, have invented a certain new and useful Improvement in Respirators, of whicht'he following is a full, clear, and exact description, reference being-hadto the accompanying drawings.

This invention relates to" respirators, such as are-employed for thepurpose of preventing the inhalationof dust and other particles in suspension by operators in various industries. It is the general object of the invention to provide arespirator of this character which is more eflicient in operation than those in general use. Further and more limited advantages of the invention are to provide a respirator which is simple and economical of production; which can be worn without discomfort; which will be capable of long-continued use; which may be conveniently assembled; which can be readily'adjusted to accommodate variation in facial contours; and which will permit the easy removal and renewal of the straining or collecting element.

I accomplish these objects in and through the construction and arrangement of parts illustrated in the drawings forming part hereof, wherein Fig. 1 represents a perspective view of an embodiment of my respirator showing its manner of use; FigJQa similar view of the separated component parts of the respirator; and Figs. 3 andt vertical sectlonal views through the respirator.

The respirator shown herein comprises three parts, namely: a combined carrying and clamping member; a cooperating clamping member; and a straining or sedimen-t-removing member or element adapted to-be interposed between and clampedby thefirst two members against the faceo the wearer;

Describing the parts by reference characters, 1v denotes the combined carrying and clamping member. This-member is an open frame which may be made of any suitable rigid material andis so shaped as to engage and conform more or less closely at its base-portion to the bridge of the nose as well as to the cheeks and chin of the wearer, being provided with a central arch 2 in the interior of one end thereof for application to the bridge of the nose.

The opening 3 within the frame of the member 1 is large, in order to provide ample tob'e explained hereinafter.

Cooperating, with the member 1 is the clamping member 6, which is ofthesame general contour as the member 1, the inner surface of said member being extended and preferably beveled, as shown at 6*, whereby the application of the member 6 to the member 1 will result in clampingthe strainer element 7 therebetween and enable the members tobeadjusted relatively to each other to force, the strainer element against the bridges of the noses and the cheeks and chins ofv various faces. The member 6 is shown as provided with. a pair of loops 8 buttoned onthe heads 9 of studs secured to opposite sides thereof.

Each loop 8 extends through a loop'lO in an elastic strap 11, one of which is provided with a hook 12 and the other with a a ring 13 the ring being adiustably conn'ected with-its strap by means of a loop 14- in said strap and a buckle 15. This con structio renables the respirator to be easily applied and to be secured firmly in place; to be adjusted to accommodate wideavariations in contours of faces and of heads; and, in all cases, to press or force the edgesof the strainer (which is preferably of yielding porousmaterial, such as gauze or light toweling) into dust-excluding contact with the face, the inner edges of themembers 1 and 6 serving as the pressing or forcing means and. the memberl conforming so closely tothe faces of various prospective wearers as to secure this result.

In Figs. 3 and l there is shown the manner inwhich the beveling of the outer surface ofthe" member 1 andthe inner, surface ofthemember- 6 enables my device to conformto wide variations inthe bridges ofthe noses of the prospective wearersa'nd still preserve a dust-excluding contactbetween the strainer member and the face. In Fig. 3, the device is shown as applied to a face having a nose with a prominent bridge. In Fig. 4, it is shown as applied to the face of a wearer having a nose with a depressed bridge. In each case, the inner edge of the strainer member, by adjustment of the members 1 and 6, is pressed into close contact with the nose, chin and cheeks of the wearer, and all three of the members are retained in such adjusted relation by means of the straps 11. This pressing of the strainer member in contact with the face is rendered possible by the cooperation between the surfaces 5 and 6 whereby the inner edge of one of said members is substantially flush with the inner edge of the other, the extent of their surfaces and their inclination giving a direction to the strainer member which will force it into contact with the face, even thoughtlie inner edges of the members 1 and 6 may not be actually flush.

The members 1 and 6 may be made of any light material such as aluminum or wood, and the complete device may be worn with out the discomfort which is a necessary incident to the use of the ordinary, heavy respirator. a

, When it is desired to replace the strainer element, it is necessary only to move the member 6 away from the member 1, which will permit the strainer element to be removed from the latter member and to be sterilized and reused. The construction of the members 1 and 6 insures a maximum breathing surface, which adds materially to the comfort of the wearer. A further advantage of the invention resides in the fact thatthe respirator may be used indefinitely, requiring only the renewal of the strainer element from time to time; and, as pointed out, this element may be sterilized and re-used indefinitely.

Having thus described my invention, what 1 claim is:

1. A respirator comprising a rigid open base member shaped to conform to the face of the wearer, an open clamping member, and a strainer member of yielding material interposed between the first two members and projecting inwardly beyond the inner edge of the base member, the base member having an extended outer bearing surface, the said surface and the inner surface of the clamping member being shaped to permit the clamping member to be adjusted to various positions upon the base member and to cause the edge of the strainer member to engage the face of the wearer.

2. A respirator comprising an open base member shaped to conform to the face of a wearer; a strainer member of yielding ma terial overlying said base member and adapted to be clamped between said base member and a clamping member in position to extend inwardly to engage the face of a wearer; and an open clamping member having that edge adjacent the face of the wearer also shaped to conform to the face of the wearer, adapted to clamp said strainer member between itself and said base member in position to extend inwardly to engage the face of the wearer, and adjustable upon said base member to permit cooperation be tween said clamping member and said base member to compensate for variations in the face of the wearer and thus cause said strainer member to closely engage the face of the wearer despite said variations.

3. A respirator comprising an open base member shaped to conform to the face of a wearer; a strainer member of yielding material overlying said base member and adapted to be clamped between said base member and a clamping member in position to engage the face of a wearer; an open clamping member having that edge adjacent the face of the wearer also shaped to conform to the face of the wearer, adapted to clampsaid strainer member between itself. and said base member in position to engage the face of the wearer, and adjustable upon said base member to permit cooperation between said clamping member and said base member to compensate for variations in the face of the wearer and thus cause said strainer member to closely engage the face of the wearer despite said variations; and means for securing all of said the head of the wearer.

4. A respirator comprising an open base member shaped to conform to the face of a wearer; a strainer member of yielding ma terial overlying said base member and adapted to be clamped between said base member and a clamping member in position to extend inwardly to engage the face of a wearer; an open clamping member having that edge adjacent the face of the wearer also shaped to conform to the face of the wearer, adapted to clamp said strainer member between itself and said base member in position to extend inwardly to engage the face of the wearer, and adjustable upon said base member to permit cooperation between said clampingmember and said base member to compensate for variations in the face of the wearer and thuscause said strainer member to closely engage the face of the wearer despite said variations; and

members to means for securin all of said members to the head of the wearer.

signature.

WILLIAM H. WOOD.