US1424522A - Liquid separator - Google Patents

Description

C. A. SANBORN.

LIQUID SEPARATOR.

APPLICATION FILED AUG.H. 1919.

Z 2 9 I 9 11 W A d e t H e lu a CORA A. SANBORN, 0F BROOKLYN, NEW YOR.

LIQUID SEPARATOR.

aaaeaa Specification of Letters Patent.

Patented Aug. 1, 1922.

Application filed August 11, 1919. Serial No.- 316,621.

To all wbomiit may concern:

Be it known that I, (101m A. SANnonN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Liquid Separators, of which the following is a specification.

This invention has to do with the provision of means for drawing oif the liquid in a receptacle, particularly the cream from the top of a bottle of milk by siphon action, one of the principal features of the invention residing in the fact that the means employed may be made of aluminum, or other light metal, which permits of their being kept in a. sanitary condition without deterioration or loss of efiiciency.

Heretofore, devices for this general purpose have been so designed that it was necessary to have one or more of the operating parts constructed of rubber or other elastic material. Such prior devices have been found to be bothersome, of limited durability, and objectionable from a sanitary standpoint, for the reason that the surfaces and pores of the rubber parts absorb particles of cream and foreign matter, making it necessary to sterilize after every use thereof. Sterilization, especially if by boiling, soon breaks down the structure of elastic bodies, and renders them incapable of functioning properly.

,A preferred embodiment of this invention, which overcomes all of these objections, is illustrated in the accompanying drawing which serves as the basisof a mere detailed description which follows. Obviously, however,'the. invention is susceptible of other embodiments of varied constructional form, wherefore, the drawing and description are to .be taken in an illustrative rather than in a limiting sense.

In the drawing- Fig. l is partly in elevation, and partly in vertical section through the assembly of the invention in association with a bottle of milk;

Fig. 2 is a detail of the annular supporting member; and

ig. 3 is a detail of the diaphragm.

In the embodiment shown, the operating arts comprise an annular supporting member 10,'a diaphragm 16 and a siphon tube 20. Said supporting member comprises a convex sustaining flange 11 adapted to rest upon the rim of a milk bottle 12, a depending vertical guide flange 13 of such diameter as will cause it to fit tightly in the neck of said bottle, and an annular strip 14, intermediate said sustaining flange 11 and guide flange 13, adapted to seat within the internal annular groove 15, provided on standard milk bottles to receive the closure disks customarily employed.

The diaphragm 16 is formed of a cylindrical shell 17 having an outwardly disposed flange 18 at the'top thereof, and an annular convexed cap 19 having a small vent 19 in the ridge thereof. The inner portion of said cap is turned down to form a vertical margin of suflicient width to engage and firmly hold the short leg of siphon 20 in any aflixed position therein.

The internal diameter of guide flange 13 and the external diameter of the cylindrical shell 17 are so proportioned that movement of the latter through the former will create a considerable degree of friction.

In operation, the supporting member 10 is placed upon the rim of a milk bottle, with the guide flange 13 bearing tightly against the neck thereof. The diaphragm 16 and siphon tube 20 are assembled with the short leg of the latter partially projecting through the annular cap 19. Thus assembled, the lower end of cylindrical shell 17 is brought into engagement with the guide flange as shown by dotted lines in Fig. 1, forming an air chamber within the diaphragm 16. In this position, the lower end of the short leg of the siphon tube should be Within the body of the cream in the bottle. With a finger tip of the operator covering the, vent 19*, the diaphragm is then pushed down, until the flange 18 rests upon the strip- 14of the supporting member 10, when the finger tip is removed from the vent 19*. In the meantime the confined air within the diaphragm 16, having been subject to compression, has

forced a portion of the cream through the short leg, over the bend and into the long leg of the siphon tube 20 thus initiating the siphon action, which is continued, by the pressure of external air entering the diaphragm through the vent 19.

After the diaphragm has'reached the limit of its downward movement, attention should be given to see that the open end of the short leg of the siphon is positioned adjacent the lower level of the cream in the bottle, as the amount of liquid to be withdrawn in this I be deposited, being tention of air, and a siphon tube having one leg thereof in frictional engagement with said c'a v 2; A 1 iquid separator comprising an annular sup orting member adapted to fit within the neo of a receptacle, a diaphragm provided with a cylindrical shell and an annular cap having a" vent therein, said diaphragm being adapted to slidethrough said supporting member and cooperating therewith to form a closure for retention of air, and a siphon tube having one leg thereof in 'a diaphra frictional engagement with said cap.

3. A liquid separator comprising an annular supporting member having a convex sustaining flange and a depending guide flange, gm provided with a cylindrical shell and with an annular cap having a vent therein, said diaphragm being adapted to slide against said form an air retaining closure, and a siphon In Fig. 1 I have isa suitable re-- tube having one leg thereof in guide flange and coop-- crating with the supportingmember totube'having one'leg thereof in frictional engagement with said cap.

4. A liquid lar supporting member having a convex sus.-

taining flange adapted to rest upon therim separator comprising an annu of a receptacle and a depending guide flange adap/ed to fit within the neck o said receptacle, a diaphragm provided with a cylindrical shell and with an annular cap havin a vent therein and slidable within 'sai \guide flange, and a siphon tube having one 8 sa1d cap.

5. A liquid separatorcomprising an annular supporting member having a convex sustaining flange adapted to rest-upon the rim of a receptacle, a depending guide-flange 4 adapted to fit within the neck' of said receptacle and an annular strip intermediate said flan es, a diaphragm having a cylindrical shel ,.-an outwardly disposed'flang'e at the top thereof and an annular convexed cap having a vent in the ridge thereof, said diaphragm being slidable within said sustaining member and adapted to rest'thereupon through engagement of said outwardly disposed flange withsaidstrip',

gagement with said cap.

thereofdn frictional engagement with and a siphon frictional en In witness whereof I have hereunto signed my name in-the presence of two subscribing witnesses.

CORA SANBORN- Witnesses:

DENZIIJ S. BRADLEY, ELoIsn T. HENDRICKSON.

Images