US2450205A - Compressible powder dispenser - Google Patents

Description

Sept. 28, 1948. w. H. ROSE COMPRESSIBLE POWDER DISPENSER :Filed Jan; 8, 1946 I N VEN TOR. Wz/Zmm Zion BY I Patented Sept. 28;, 1948 UNITED STATES PATENT orrlcr.

2,456,205 COMPRESSIBLE POWDER DISPENSER William H.

Rose, Jersey City,

N. J.; Hudson County National Bankexecutor of said William H. Rose, deceased Application January 8, 1946, Serial No. 639,778

7 Claims. (Cl. 222-193) I of the top member and the side member being Another object of my invenlon is to agitate a powder within a container both during pressure to cause the powder to be ejected from'the con tainer and during the release of said pressure.

It is well recognized that the presence of powder in any of the air passages in devices of this character will have a tendency to pack and thus clog these passages to an extent that will greatly decrease, if not completely retard the efficiency of the device, 7

It is well known, further, that as the interior end of a powder-exit tube must be positioned in the lower portion of the container in order to remove as much powder as possible, this portion of the powder mass becomes packed and hence dificult to remove.

The devices of my invention are directed to overcome the mentioned and other undesirable features of my powder dispensers, and I hereinafter show and explains that I have overcome these undesirable features.

In the accompanying drawings of modified forms of the devices of my invention, similar parts are designated by similar numerals. V

Figure 1 is a vertical section of one form of a device of my invention. I

1 Figure 2 is a section through the line 2-2 of Figure 1.

Figure 3 is a vertical section through a modified form of a device of my invention.

Figure 4 is a section through the line 4-4 of Figure 3.

Figure 5 is a plan view of the air-delivery tube shown in Figs. 3 and 4.

. The particular form of a device of my invention shown in Figures 1 and 2 of the accompanying drawings comprises a tubular casing having the-resilient side member ID, the rigid top member H and the. rigid bottom member l2, the side member being fixedly attached to the top member H by means of the annular channel l3 side member ID can fixedly attached to the bottom member l2 by means of the annular channel IA of the bottom member.

It will be noted that the central portion of the be pressed inwardly and will return to its natural position upon the release of said pressure.

The side member In may consist of a single sheet, a plurality of superimposed sheets or a sheet wrapped upon itself to form a laminated sheet of a suitable resilient material, among which are rubber, cardboard, metal and synthetic resins.

Positioned within the casing and supported by g; the top member II is a powder-exit tube IS, the

upper end of the tube l5 being open outwardly at the casing and the lower end of the tube [5 being positioned above thebottom member l2.

Positioned longitudinal to the exit tube It and abutting thereon is an air-circulating tube l6. Positioned over each of the openings-of air-circulating tube 16, and fixedly attached thereto, is a disc of air-pervious, powder impervious material l'l, among which materials are felt, fibers, materials, glass sponge, wood and cellulose fibers, in such physical construction as to allow of the passage of air therethrough and prevent the passage of powder therethrough upon the compression of the side of the container and upon the release of such pressure allow the side to return to its original position.

The powder-exit tube l5 and the air-circulating tube I6 are maintained in the desired position with respect to each other by means of clamps l8, IS.

The operation of the device is as follows: a fine powder I9 is introduced into the device and, the central portion of the tubular member side is pressed inwardly, thus forcing the air from the air from the air chamber 20, through the upper air-pervious, powder-impervious material I! thence through the air circulating tube It, thence through the lower air pervious, powder impervious material ll into the powder mass l9. This forced passage of air will agitate the powder in the lower portion of the device and will thence pass outwardly of the device through the powderexit tube, carrying a portion of the powder l9 with it.

Upon release of the pressure upon the side of the device, air will be withdrawn inwardly through the powder-exit tube l5 into and agitating the powder mass is and thence upwardly through the powder mass I9 and the air-circulating tube l6 into the air chamber 28.

It will be noted that during the last described operation, the lower air-pervious, powder-impervious materiall'l will allow of the passage of air through the tube 6, but will prevent the powder from entering it, thus preventing clogging thereof.

It will also be noted that the upper air-pervious, powder-impervious material will prevent the pow; der from entering the air-circulating tube when the device is agitated during shipment or storage, 01 when the device is positioned otherwise than in its normal upright position.

The construction of my devices and the composition of their elements prevent, thereiore, the entrance of the powder into the air-circulating tube l6, thus preventing the powder from clogging the tube, while allowing passage of air there: through to allow of the emission of powder through the powder-exit tube I 5.

The modified form of a device of my invention shown in Figures 3 and 4 of the drawings is similar to that shown in Figures 1 and 2 as evidenced by the corresponding numerals, differing therefrom, however, as follows:

In this form of my device the powder-exit tube 15 is positioned vertically through the air-circulating tube 22 and the upper end of the aircirculating tube is closed by means of a disc of air-pervious, powder-impervious material l'l', fixedly' attached thereto with a central opening 23 therethrough for the inclusion of the powder-exit tube [5. The lower end at the air-circulating tube 2'! is closed by means of a disc 24 similar to that employed for the closing of its upper end, except that the disc is positioned between the side of the air-circulating disc 2'! and the side of the powder-exit tube l and may be frictionally retained therein or may be adhesively attached thereto.

It will thus be seen that my invention presents powder dispensing devices, operatable by compression of its side member and in which there is an air-pervious, powder'non-impervious element preventing the powder from clogging its necessary air passage while allowing the passage of air to accomplish its practical application.

I do not limit myself to the particular size, shape, number, arrangement or material of parts as s ec fica ly h n nd d sc ibed as these ma be varied within the scope Qi' my invention.

What I claim is:

1. A pow d spens r ompri a on ate a ing having ex ble re ili t si e emb r and rigid end members; a powder-exit hollow tubular m m e pen a h ds an hav n it upper open end pos i n d out ide sa d ca n ad a n one d m mb r and ts ow r open end positioned ins de ai cas n djac nt t e other end m mb us forming n x t ning for said casing; an air-circulating tubular member Within said casing, the lower end of Which is adjacent to the lower end of said powder-exit member and means adapted to allow the passa e of air thrQugh said air-circulating tubular member while preventing the passage of powder therethrough.

2. A powder dispenser comprising an elongated casing having flexible resilient side members and rigid end members; a powder-exit hollow tubular member open at both ends and having its upper open end positioned outside said casing adjacent ne nd m b nd s low o en nd sitioned inside said casing adjacent the other end member, thus forming an exit opening for said casing; an air-circulating tubular member within said casing, the lower end of which is adjacent to the lower end of said powder-exit member, means adapted to maintain said powder-exit member and said air-circulating member adjacent to each other, and means adapted to allow the passage of air through said air-circulating tubular member while preventing the passage of powder therethrough.

3. A powder dispenser comprising an elongated casing having flexible resilient side members and rigid end members; a powder-exit hollow tubular member open at both ends and having its upper open end positioned outside said casing adjacent one end member and its lower open end positioned inside said easing adjacent the other end member, thus forming an exit opening for said casing; an air-circulating tubular member within said casing, the lower end of which is adjacent to the lower end of said powder-exit member and means adapted to close the ends of said air-circulating member and allowing the passage of air through said air-circulating tubular member while preventing the passage of powder therethrough.

4. A powder dispenser comprising an elongated casing having flexible resilient side members and rigid end members; a powder-exit hollow tubular member open at both ends and having its upper open end positioned outside said casing adjacent one end member and its lower open end positioned inside said casing adjacent the otherend member, thus forming. an exit opening for said casing; an airscirculating tubular member within said casing, the lower end of which is adjacent to the lower end of said powder-exit member and air: pervious, powder-impervious means carried by said air-circulating member adapted to allow the passage of air through said airecirculating tubular member while preventing the passage of pow.- der therethrough.

5. A powder dispenser comprising an elongated casing having flexible resilient side members and rigid end members; a powder-exit hollow tubular member open at both ends and having its upper open end positioned outside said casing adjacent one end member and its lower open end positioned inside said casing adjacent the other end member, thus forming an exit opening for said casing; an air-circulating tubular member within said casing, the lower end of which is adjacent to the lower end of said powder-exit member and airpervious, powder-impervious means carried by said air-circulatingmember adapted to close the ends of said air-circulating member and allow the passage of air through said tubular member while preventing the passageof powder therethrough.

6. A powder dispenser comprising an elongated casing having flexible resilient side'members and rigid end members; a powder exit hollow tubular member open at both ends and having its upper open end positioned outside said casing adjacent one end member and its lower open end positioned inside said casing adjacent the other end member, thus forming an exit opening for said casing; an air-circulating tubular member within said casing, the lower end of which is adjacent to the lower end of said powder-exit member, said powder-exit member being positioned longitudinally within said air-circulating member and air-perloua po e m e v ous mean adap d to Close the ends of said air-circulating member and allow he ass ge of. ai u h s ai -c r u a n tubular member while preventing the passage of powder therethrough.

7. A powder dispenser comprising an elongated casing having flexible resilient side members and rigid end members; a powder-exit hollow tubular member open at both ends and having its upper open end positioned outside said casing adjacent one end member and its lower open end positioned inside said casing adjacent the other end member, thus forming an exit opening for said casing; an air-circulating tubular member within said casing, the lower end of which is adjacent to the lower end of said powder-exit member, said powder-exit member being positioned longitudinally within said air-circulating member and air-pervious, powder-impervious means carried by said air-circulating member adapted to close the ends of said air-circulating member and allow the pas sage of air through said air-circulating tubularmember while preventing the passage of powder therethrough.

WILLIAM H. ROSE.

REFERENCES CITED The following references are of record in the file of this patent:

Number UNITED STATES PATENTS Houghton Sept. 19,1944

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