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Publication numberUS1737532 A
Publication typeGrant
Publication dateNov 26, 1929
Filing dateDec 13, 1928
Priority dateDec 13, 1928
Publication numberUS 1737532 A, US 1737532A, US-A-1737532, US1737532 A, US1737532A
InventorsGeorge B Allen
Original AssigneeGeorge B Allen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air purifying and deodorizing device
US 1737532 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Nov. 26, 1929. G. B. ALLEN AIR PURIFYING AND DEODORIZING DEVICE Filed Dec. 15, 1928 i? $2? al,

gft/manto@ @fafa-EA LAE/Y Q-(QMM dwomg/ Patented "Nov. 26, 1929 GEORGE B. ALLEN, or ATLANTA, GEORGIA AIR PURIFYING ANP DEODORIZING DEVICE Application led December 13, 1928. Serial No. 325,886.

This invention relates to air purifying de vices, and more particularly to a device adapted for use in refrigerators for purifylng and deodorizing the air therein. I

An important object of the inventionis to provide a device adapted to be -placed 1n a refrigerator or other place in4 which odors are apt to be present, and which is adapted to absorb such odors.

A further object is to provide a device of the above mentioned character which permits foods of different kinds to be placed in an ice box without the danger of one vfood becoming contaminated by the odor or iavor of another food therein.

A further object is to provide an air purifying and deodorizing device of the character referred to'which is convenient in form, and which is adapted to be shipped without becoming contaminated with odors whereby the purifying and deodorizing agent will be fresh and uncontaminated when placed 1n a refrigerator or the like.

A further object is to provide a metalllc or similar container having a body of an absorbent deodorizing material therein and perforated to permit a circulation of airtherethrough, and to provide means for substantially sealing the perforations untll such time as it is desired to place the device 1n a refrigerator .or the like. I

A further object is to provide a devlce of the above mentioned character having novel means for retaining the sealingmeans in po- Sition.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the drawings I- have shown one embodiment of the invention. In this showing,

Figure 1 is a perspective view showing the sealing means removed,

Figure 2 is a section on line 2 2 of Figure 1 showing the sealing means in position, and,

Figure 3 is a fragmentary horizontal sectional view on line 3-3 of Figure 1.

Referring to the drawinfrs, the numeral designates a container preferably formed of sheet metal having end walls il and side 5 walls 12. Top and bottom walls 13 and 14.-

are connected to the side and end walls by sultable seams 15 which extend upwardly and y downwardly beyond the top and bottom walls to form lnwardly inclined flanges 16 for a purpose to be described. The top and bottom Walls 13 and 14:' are perforated as at 17. `One of the end walls 11 is provided with an opening -18 normally closed by a cap 19 havingaflange 20 seating against the end wall 11 and an inwardly projecting cylindrical 0g flange portion 21 frictionally engaging with- 1n the openin 18., T-he cap 19 is removed whereby a bo y of an absorbent deodorizing material 22 may be introduced into the container through the opening 18. The body of material 22 preferably contains a number of ingredients such as charcoal combined with other ingredients having germici'dal qualities whereby the body of material as a whole is adapted to absorb gases and odors and at the same time has the eifect of retarding decomposition of adjacent perishable materials.

When the container is filled with the body of material 22 a pair of sealing members 23 is arranged against thetop and bottom walls 13 and 14, the sealing members being engaged by the inwardly inclined flanges 16'to be retained in position thereby. The sealing members are in the form of sheets of material 'corresponding in size substantially to the size @o of the top and bottom walls 13 and 14:, and these sheets of material may be impregnated with paraffin or otherwise treated to rend them substantially moisture-proof. fn shi-pment the device with the sealing members in position is preferably wrapped in moisture excluding material such as paraiin paper, glassine or the like, to insure the exclusion of moisture and odors 'from the device untilit is ready for use. I

rl`he operation of the device is as follows:

The container is filled with the purifying and deodorizing material 22 in the manner referred to whereupon the sealing members 23 are pressed into posit-ion against the perforated walls 13 and 14, the sealing members being retained in position by frictionalengagement with the inclined flanges 16.1.;The A. device is then wrapped in a suitable moisture` 100 excluding covering whereupon it is ready for shipment.

When it is desired'to use the device, the wrapping is removed whereupon the sealing members readily may be removed by prying them from the top and bottom walls of the container. The device is particularly adapted for use in refrigerators, and the circulation ot' air in a refrigerator is such that odors or any impurities in the air will be absorbed by the material 22. It has been found that various kinds of foods may be placed in a refrigerator without danger of one food becoming contaminated by another food. For example, the present device will prevent the contamination of fresh butter or other food by the presence of anyrancid butter which may have been left in a refrigerator; The device is relatively cheap to manufacture and will absorb odors over substantially long periods of time, It has'been found that a device of convenient size may be made which will be thoroughly efiicient in operation in a refrigerator for at least three months. l

While theI device has been described as being'particularly adapted for' use in refrigerators, it will be apparent that it may be ernployed in toilets, sick rooms, or any other places as may be desired. When employed in a refrigerator the germicidal ingredients have the effect of retarding the decomposition of foods.

The provision of the sealing members permits the device to be stored over considerable l periods of time, and to be shipped without losing its effectiveness whereby the body of material 22 is always fresh and eective for absorbing odors when the device is un-v Wrapped for use.

The body of material 22 is granular in form and is normally dry, and since it consists principally of and consequently its use is wholly inoffensive. When employed for purifying the air in a refrigerator, it cannot contaminate any/of the articles of food therein. 4

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred eXaILple-Q the same and that various changes in the shape,size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

I claim: A device of the character described comprising a sheet metal container having side and end walls, and opposite relatively closely arranged walls provided with perforations,

each of said last named walls being connected to the other walls by a seam forming a flange the opposite portions of which are inclined inwardly toward each other,.a body of a deodorrzing material in said container, and a sealing sheet arranged against each of Said opposite walls to seal the perforations therein, said sheets frictionally engaging said anges to be held in position thereby.

In testimony whereof I aliix my signature.


charcoal, it is odorless v Aons

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2581684 *Jun 9, 1947Jan 8, 1952Western Sales Agency CorpDesiccator
US2585289 *Oct 22, 1945Feb 12, 1952Stanley WallaceChemical container and package
US3047370 *Jul 28, 1959Jul 31, 1962Grace W R & CoTransparent soda lime cartridge
US3854912 *Sep 11, 1972Dec 17, 1974Lau Prod LtdCombined grease trap and air filter for range hoods
US4063665 *Dec 6, 1976Dec 20, 1977Chemtrust Industries CorporationSupply container and dispensing unit assembly
US4302224 *Oct 12, 1979Nov 24, 1981Greene & Kellogg, Inc.Compact oxygen concentrator
US4306892 *Feb 6, 1981Dec 22, 1981Tec-Air, Inc.Disposable air freshening packet
US4333752 *Jan 14, 1980Jun 8, 1982Michlin Chemical CorporationAdsorbent cartridge for the exhaust of diazo process machines
US4543112 *Apr 30, 1984Sep 24, 1985Figgie International Inc.Sorbent type filter assembly for a respirator and method of making same
US4604110 *Feb 28, 1985Aug 5, 1986General Time CorporationFilter element, filter, and method for removing odors from indoor air
US5224975 *Jun 19, 1990Jul 6, 1993Purnell Gabriel LLitter box deodorizer
US5240487 *Oct 14, 1992Aug 31, 1993Metro-Pacific Holdings (Canada) Inc.Warm air register filter and scent dispenser
US5468447 *Dec 13, 1994Nov 21, 1995Harrison-Clifton Inc.Refrigerator freshener
US5525145 *Dec 17, 1993Jun 11, 1996Hodge; JosephFiltering apparatus for a forced air duct grill
US5690719 *Oct 19, 1995Nov 25, 1997Hodge; JosephRemovable filter for a forced air duct grill
US5772959 *Oct 11, 1996Jun 30, 1998Harrison-Clifton, Inc.Refrigerator freshener
US6238467 *Sep 24, 1999May 29, 2001Gore Enterprise Holdings, Inc.Rigid multi-functional filter assembly
US6790261Sep 13, 2002Sep 14, 2004Glenwood DeltsFilter frame and method
US8663366 *Sep 21, 2010Mar 4, 2014Jeffrey Brent CollinsDevice and method for removing humidity/moisture from a closed container or area
US20050211099 *Mar 23, 2004Sep 29, 2005Doughty David TSpiral composite adsorbent material
US20050211100 *Mar 10, 2005Sep 29, 2005Doughty David TShaped composite adsorbent material
US20110265645 *Nov 3, 2011Jeffrey Brent CollinsDevice and Method for Removing Humidity/Moisture from a Closed Container or Area
U.S. Classification96/152, 422/5, 239/34, 96/226, 239/55
International ClassificationF25D17/04
Cooperative ClassificationF25D17/042, F25D2317/0415
European ClassificationF25D17/04A