Sept- 24, "19.46- w. F. GALLAGHER‘ ' 2,403,058 _ IHYGROSCOPIC MATERIAL DISPENSER fFiledvFeb. 14, 1944 I _ ‘ " 3mm William.‘ F; Gallagher‘ 5%., cawdxam W Patented Sept. 24, 1946 2,408,058 UNITED STATES PATENT OFFICE 2,408,058 HYGROSCOPIC MATERIAL DISPENSER William F. Gallagher, Spring?eld, Mass. Application February 14, 1944, Serial No. 522,294 1 Claim. (Cl. 222—211) ‘(Granted under the act of March 3, 1883, as 1 amended April 30, 1928; 370 0. G. 757) 2 The invention described herein may be manu with numerous perforations 9 of suflicient size to factured and used by or for the Government for permit the granular material which is to be governmental purposes without the payment to dispensed by the device to pass into the tube 6 me of any royalty thereon. without di?iculty. The granular material Ill may This invention relates to a dispensing container be inserted within the container by removal of for granular materials and particularly to those the cap 4. types of granular materials such as salt which In use, the pressure within the container I are hygroscopic and tend to cake by absorption is increased by depressing the ?exible cap 4 either of moisture. manually or by suitable mechanical means. Both in the home and industry considerable 10 This produces a movement of air thru the per di?iculty has been experienced in dispensing of forations 9 and out the end 1 of tubing 6. Such smal1 amounts of hygroscopic material. A dis air movement carries along a portion of the gran pensing container for such material should, from ular material 10 into the tubing 6 and such por the standpoint of convenience, be ready for inp tion is forcibly ejected out of the container l mediate use without removing any type of cover. 15 thru the end portion 7 of the tubing 6. Under such conditions the dispenser must neces With the construction as disclosed however the sarily have at least one opening exposed to the provision of at least one full turn 8 in the tubing air and accordingly caking of the hygroscopic ‘5 forms a trap for any water vapor that may material within the dispenser occurs due to the attempt to enter within the container l thru absorption of the water vapor from the air with the open end portion 1 of the tubing 6. It is which it is in contact through such openings. a Well-known fact that water vapor, being lighter Accordingly, it is an object of this invention than air, will tend to collect in the top regions to provide an improved dispenser for granular of any enclosed space which is free of air cur material which is always ready for use. Thus when the container is not in use, A particular object of this invention is the pro 25 rents. any vapor that penetrates into tube 5 through vision of a dispenser for hygroscopic materials the open end ‘i will tend to collect in the upper which prevents the absorption of moisture in the :bend portions of the coil 8 and remain there, air by the hygroscopic material and yet is always out of contact with the granular material, since ready for use. there will be little air movement within the con The speci?c nature of the invention as well tainer. Thus the amount Of moisture entering as other objects and advantages thereof will the interior of the container over long periods clearly appear from a description of a preferred of non-use will be greatly reduced and the embodiment as shown in the accompanying granular material It] is effectively kept free of drawing wherein the hygroscopic material dis contact vwith water vapor. Hence, if the material penser is illustrated in longitudinal section. 35 I6 is hygroscopic, the tendency for it to cake In the accompanying drawing there is shown or harden will be substantially eliminated. in assembled relation a preferred embodiment I claim: of this improved dispenser. The dispenser com A granulated material dispenser comprising a prises a hollow container shell I having a large open end 2 and a restricted open end 3. A dia phragm cap 4 of rubber or other suitable ?ex ible moisture proof material is tightly secured container arranged to receive said granulated material therein, a ?exible cap secured across one end of said container, a discharge opening formed in the opposite end of said container, a to the large end 2 of the dispenser by means piece of tubing having one end connected to said of the threads 5 or any other conventional fast ening means. The end 1 of a piece of hollow 45 discharge opening and the other end thereof extending substantially through the length of tubing 6 is secured in air sealing relation to the said container and perforated to permit passage small end 3 of the container I. The hollow of the granulated material into said tubing, said tubing 6 projects within the container I and is tubing being formed into at least one complete coiled about within the container,‘ having at least one full turn portion 8. The portion of 50 loop intermediate its said perforated end and discharge end to form a vapor trap. ‘ tubing 6 beyond the full turn coil 8 is provided WILLIAM F. GALLAGHER.