US2233123A - Siphon - Google Patents

Description

Feb. 25, 1941.

R. M. FRITTS SIPHON INVENTOR. $440k 5/773 ll I Patented Feb. 25, 194.1 2,233,123

UNITED STATES PATENT OFFICE SIPHON Ralph M. Fritts, Kansas City, Mo. Application April 17, 1939, Serial No. 268,202

1 Claim. (01. 137-20) This invention relates to siphons in the of arm [4, the tubular form is developed into a nature of those used in transferring liquids from flared marginal portion [8. one container to another, and the primary ob- Sealing rings 20 are mounted upon the outer ject is the provision of a small compact and efsurface of arm I4 between rib l6 and the flared iective'siphon which is practical and e fficient in end of arm IS. ,The outside diameter of sealing 5 the laboratory where small bottles are to receive rings 20 is slightly greater than the diameter of liquids from relatively large containers. arm M at the extreme end thereof so that as One of the important aims of this invention priming section 22 is moved along arm [4, rings is to provide a simple, inexpensive and effective 20 will bear against the inner surface 23 to estab- 10 siphon wherein is embodied novel means. for lish a frictional contact that Will preclude the 10 priming the same through the employment of escape of air. which means. the flow of liquid through the Priming section 22 is likewise tubular and siphon may be established without the use of While it m y be made of lass, it has been found complicated pumps or suction devices, the nature pr fera le t employ a cellulose composition of which are objectionable because of the inwhich may be m d n through which ay 15 ability to maintain the same sanitary and free be viewed the liqu d as it passes through body from foreign matter, l0 and said section 22. Section 22 is tele- This invention has for another aim, the prosoopioally u d 0 a m M for movement vision of a siphon that is specially constructed longitudinally thereelohghe inner end of secto have a priming section, telescopically mount tion 22 has a perforated cap 24 secured thereto, 20 on one arm of the tubular body of the sip which circumscribes arm 14 and which engages through the medium of such parts as will estabthe annular rib [6 to lim t t e p f vel of lish a definite seal between the siphon body and Section 22 in e direction l g m 4. said section, all to the end that very short strokes The other end of section 22 s equipped with 25 will be required to create the suction necessary a flexible tubular tip ThiS p e endS 25 to establish a flow of liquid through the siphon lo gitudinally from section 22 and is compressed body by the operator when the siphon is primed as Details of construction and the combination W111 be heremaftel more fully Set downof specially formed parts, more fully hereinafter The free end of arm 14 has an e al bead described and illustrated in the accompanying 23 integral therewith Which e g s the flared 30 drawing, constitute minor objects of th i end of arm l4 to limit the relative movement bevention. tween arm and section l4 and 22 respectively. In the drawing: Thus, section 22 has a limitedmovement in two Figure 1 is a side elevational view of a siphon directions along arm e made to embody the present invention, In some cases, arm I4 is provided with a com- 35 Fig. 2 is a fragmentary longitudinal detailed Pressible Section 30 upon which. is ounted a sectional view through a portion of the siphon pinch-(300L132 that may be Operated to p the taken on line IIII of Fig. l. flow of fluid through body In. I Fig. 3 is a fragmentary longitudinal sectional P more pi S W es less ex- 40 view through a portion of the siphon illustrating pensive manner 0f pp the how of fluid a modified form of th i ti 1 through body I0, after it has been once estab- Fig. 4 is a similar view illustrating a still liShed, is the Vent 34 and plug 35 therefor, further modification of the invention; and, Which is positioned at the bight of the V-shaped Fig. 5 is an enlarged fragmentary detailed body I0. Either, or both of the means just desectional view taken on line VV of Fig. 1. scribed may be employed with the other parts The siphon body is preferably V-shaped, 0f the siphontubular, and formed of glass or other transparent In the illustrated ent of the invenmaterial which may be kept clean through the tion Shown in 3 0f the drawing, e priming 5 use of steam or boiling water. section 22 is the same as shown in Figs. 1, 2 and One arm 8 of tubular body I0 may be projected 5, with the single exception that the free end of into receptacle l2 in the usual manner when the this section is closed by a wall 50. The upper or siphon is to be used. The other arm 14 of body inner end of section 22 in this instance, does not H] is specially formed in that it has an annular have the ring 24 thereon because when a closed outer rib l6 thereon between which and the end end section is used, the same is completely with- 55 drawn from leg l4 so that fluid may be directed into the container being filled.

In the embodiment of the invention seen in Fig. 4, the priming member is not a tubular section embracing the outer surface of leg l4, but is a plunger 52 which extends into leg [4, the free end of which is not flared nor provided with the sealing rings, as mentioned with respect to Figs. 2 and 4. Plunger 52 is provided with rings 54 in the nature of fabric threads, such as seen at 2|] in Figs. 2, 3 and 5. These rings 54 are within an annular groove 56 on plunger 52 and are slightly greater in diameter than the outside diameter of plunger 52 so that a frictional en-.

gagement with the inner surface established.

When operating the siphon made in, accordance with the preferred embodiment of the invention, section 22 is moved outwardly as far as possible or necessary, whereupon tubular tip 26 is compressed and closed by the operator. Section 22 is next forced inwardly along arm l4 so as to expel the trapped air outwardly through arm 8 and through the liquid within receptacle l2. When section 22 has been moved inwardly a sufiicient distance, a quick, outward movement will create a suction or a partial vacuum within body l and section 22 which will insure that liquid in receptacle l2 will be forced out through tubular body 10 and the said section. Obviously, the operator will release his hold upon tip 26 so as to permit the fluid to flow into the receiving bottle or container. To stop the flow of fluid through the siphon, it is but necessary to either close pinch-cock 32 or withdraw plug 36 from opening 34.

When the siphon, such as illustrated in Fig. 3 is to be brought into play, section 22 is completely withdrawn from arm l4 after it has been moved inwardly a sufiicient distance to partly evacuate body I0 and the section. A quick withdrawal of section 22 from its position on arm l4 will establish a flow of fluid upwardly through arm 8 and thence downwardly through arm I4 and out the end thereof, from which section 22 has been withdrawn.

The same action is required when using the form of priming plunger 52 shown in Fig. 4. At the outset, plunger 52 is forced inwardly along arm l4 and thereafter quickly withdrawn to establish the necessary flow of fluid through arm The advantages of siphons embodying any of j the concepts herein described are obvious to those skilled in the art and it is clear that siphons embodying other modified forms of the invention may'be made without departing from the scope of the appended claim.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

A siphon of the character described comprising an angular, tubular body; a tubular priming section telescopically mounted on the body at one end. thereof for sliding movement therealong; and elements on the body and said section for limiting the movement of the latter along the former, said tubular body having sealing rings thereon in frictional engagement with the inner face of the priming section, the end of said body within said priming section being flared and provided with an annular outer rib, said sealing rings being in circumscribing engagement wth the body between the flared end thereof and said outer rib.

RALPH M. FRITTS.

Images