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Publication numberUS888393 A
Publication typeGrant
Publication dateMay 19, 1908
Filing dateAug 3, 1907
Priority dateAug 3, 1907
Publication numberUS 888393 A, US 888393A, US-A-888393, US888393 A, US888393A
InventorsEmma L Dunning
Original AssigneeEmma L Dunning
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 888393 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED MAY 19, 1908.



XYYU exfiov Em m all D2002 Wflnesses:



To all whom it may concern:

Be it known that I, EMMA L. DUNNING, a citizen of the United States, residing at the city of Providence, in the county of Providence, State of Rhode Island, have invented certain new and useful Improvements in Vaporizers, of which the following is a specification.

My invention relates to a device adapted to contain a chemical liquid for purifying the air in sick-rooms, work-shops, and other places where pure fresh air is required. The

object in view being to provide a liquid receptacle with means for throwing oil the vapor of said liquid in order to destroy the foul odor in the atmosphere of sick-rooms, workshops, or other places where air may become impure.

A further object of my invention is to provide a device of this character with a locking means to insure a proper working of the interior parts from being tampered with by a miscreant, while the device is in use.

To the above ends essentially my invention consists in the novel construction and combination of parts, as hereinafter described and claimed.

In the accompanying sheet of drawings, Figure 1 represents a perspective view of my improved vaporizer. Fig. 2 is a transverse sectional view of the device, taken in line of Fig. 1, showing the device in operative position upon the wall of a room, and, Fig. 3 is a modification of the cover-closing means for the receptacle.

Like reference characters indicate like parts.

a designates a rectangular-shaped receptacle having a hinged cover I) and integral brackets c, c, which are provided with holes (1, (l to receive screws 6, e therethrough for securing the device to the wall f of a room.

A layer of absorbent material 9 is folded upon a rod-extension 7L whose ends are secured centrally on the end walls a, a of the receptacle, and this layer of absorbent material is partially submerged in my specially prepared chemical liquid, designated by reference letter i. The capillary action of the absorbent material 9 draws up the liquid from its volume i, so that the portion of the absorbent material above the level of the liquid is kept continually saturated and the vapor caused by the constant evaporation of the li uid, from this distended portion of the absorbent material, passes out through perforations j, formed in the walls of the des pecification of Letters Patent.

Application filed August 3, 1907.

Patented May 19, 1908.

Serial No. 386,996.

vice, and co-mingles with and destroys the foul odor in the atmosphere of a room.

The cover I), which is hinged to the rear longitudinal wall of the receptacle, as at a point I) in Fig. 2, has a centrally depending tongue 6 secured by solder upon said cover, and said tongue is provided with an opening b to receive therethrough a pin 7c, which is secured to the front wall of the receptacle and projecting within the same. The tongue b is of spring-metal and has its lower portion curved, in order to pass over in contact upon the point of the pin it, which, when the cover is closed, enters the opening b of the springtongue 6 and holds the device in a locked condition, in the manner shown in Fig. 2.

To unlock the device, a common pin Z is used for entering through a fine perforation m formed in the front wall of the receptacle and forcing the spring-tongue b from its connection with the pin it to the dotted position indicated in Fig. 2, when the cover will then be free to swing open.

The manner of unlocking the device acts as a puzzle to any other than the owner or person having charge of the device, thus the interior parts are protected and a proper working of the device is assured.

As a modification to the concealed means of locking the device, as described, the cover I) may be independent of the receptacle and have its longitudinal edges curled, as at n, n in Fig. 3, in order to slide and hold by frictional contact upon the beaded edges n, a, formed on the front and rear walls of the receptacle.

By my construction and arrangement of parts, I provide a neat and useful device for the purpose intended, and having means to insure an effective working while the device is in use.

What I claim and desire to secure by Letters-Patent, is-

The combination of the receptacle a provided with vent openings j, j; the rod-extension 71 the layer of absorbent material g; the pin 7c; and the cover I) hinged to said receptacle and having the tongue if provided with an opening to receive said pin therethrough, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.


l/Vitnesses JAMES MOGANN,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2494640 *Nov 2, 1946Jan 17, 1950Airkem IncLiquid diffuser
US2572329 *Aug 21, 1948Oct 23, 1951Clyde C FosterRoom deodorizer
US3885738 *Feb 19, 1974May 27, 1975West Chemical Products IncVolatilizing dispenser
US4931258 *Feb 23, 1989Jun 5, 1990Surco Products, Inc.Vandal-proof deodorant cabinet
US5567361 *Jul 14, 1995Oct 22, 1996Harper; Edward C.Fragrance enhancer apparatus
US9476604 *Jun 27, 2016Oct 25, 2016Raymond D. MathewsRoom humidifier
Cooperative ClassificationY10S261/88, A61L9/12