US2096791A - Cooling device - Google Patents

Description

Oct. 26, 1937. P. A. CUSANELLI COOLING DEVICE Filed Sept. 1, 1936 2 Sheets-Sheet l Fig- 470:.

Inventor a2 Attorney,

Oct. 26, 1937.

P. A. CUSANELLI COOLING DEVICE Filed Sept. 1, 1936 2 Sheds-Sheet g Fig 8.

fig: 6.

WM A tlor ney Patented Oct. 26, 1937 UNITED STA-TES- COOLING DEVICE Paul ArCusanelli, St. Louis, Mo., assignor of oneihalf .to Lorenzo Caudera, St. Louis, Mo.

7 Application September 1, 1936; Serial No. '98;91'5

3 Claims.

This invention relates to certain'new and useful improvements in cooling devices for liquids, semi-solids and similar substances, the peculiarities-ofwhich will be and claimed.

More-specifically invention has for. its main objectto provide means for lowering'the temperature of a liquid, -semi-solid,- or other substance in a receptacle, by the refrigerating action 0 ofice, chemicals-or other-refrigerant deposited in a container submerged at or near the center of said receptacle, said containerbe'ing of metal or other suitable non-corrosive heat-conducting substance that will not contaminatesaid liquid orsemi-so'lid substance nor be corroded thereby.

Anotherobject is to reduce the loss of insufficiently cooled liquid-drawn from' such "receptacle preliminary to withdrawing the cooled liquid.

Another object is to effect readily the recharging of the refrigerant container.

Another object is to detachably secure the refrigerant container in the desired position within said receptacle. V 1 Other objects and features-of construction will appear and be described hereinafter. V

In accompanying drawings in which like reference numerals indicate corresponding parts, Fig; 1 represents a top 'p'la'n'view of 'a barrel I t as the receptacle for liquid contained thereinmnd -'one -fo-rm 'o'f nay-improvement applied-thereto;

Fig. 2, a verticalcentralsecti'onal 'elevation of Fig. 1 and showing the form of my refrigerant container as permanently applied to the barrel A inthe-fac'tory where built; l I 3, aplan view of a 'cap for the refrigerant container;

Fig. 4, aside view of the same; I Fig. 5, a top view of the refrigerant container shown in'Fig. 2; q 7 h Fig. 5a, a side view of the same;

'Fig. 6, a vertical central sectional elevation-sim- -llar to Fig. 2 of the receptacle,- with'my refrigerant container shown detachably mounted in the head'of the receptacle, and adapted'for application to a barrel as alreadybuflt; V V V Figil, a horizontal section of Fig. 6 on'the line 1-1, looking upward;

Fig. -8, a detail "side view of the form of refr'igerant container shown in Fig. :6; and

Fig.9,a central vertical sectional elevation of 'a receptacle for ice-cream 'or similar semi-solid substance, a cover therefon and a suitable refrigerant container removably secured in'central po- -'si-t-ionin sa-i'dreceptacle. 7

Referring to the drawings the numeral I deshereinafter fully described ignates a receptacle for liquid, semi-solid -or other substance to becooled within the receptacle; receptacle may be cylindrical; barrel-shaped as shown or other desired form, andmaybe closed for withstanding the'outward pressure of beer or similar liquids stored therein under pressure of gas or otherwise, such as a'beer barrel as illustrated,'from which the liquid may be drawn through a valvular outlet 2 when sufficiently cooled by the action of my cooling deg 10 vice. a

'My cooling device preferably consists 'of a tube 3 closed at the inner end, and having the other end provided with ascrew cap-4. This capped end is securely mounted in the head =5, orlother 15 wall of-the barrel or other receptacle. Within thetube is deposited a refrigerant such as dry ice, chemicals -or other suitable refrigerant material. The walls of said tube or other form of container forthe refrigerant, are preferably of 20 a suitable metal, such as aluminum, which will readily conduct theheat of the liquidorother. substance being cooled through the walls of'the' container under the refrigerating action of the V melting ice,-chemicals or other refrigerant ma- 25 terial with which the container is charged.

For illustration of'my invention, the barrel shown in Figs. 1 and '2-i1lustrate the permanent form of attachment of theouter end of the refrigerant-container as mountedin the head of'i31) a barrel when said barrel is being built at the factory. The sealing flange linear; the outer end of the container is engaged with the inner face of the barrel head 5, andfseal-ed'against the escape of liquid or air by the usual sealing 35 ring and fastening means for said flange; The end of. the tube beyond the flange is tightly swaged or otherwise secured in the head 5.

The walls 3 of said container extend downward at or near the center of the receptacle'in the preferred location of the container as submerged in the liquid.

When desired to charge or recharge the container with the refrigerant substance, access is had to the container by removing the cap 4. The 4 cap, may be screwed or otherwise secured in the outer end of the container, so thatthe barrel or other receptacle may be readily handled and. transported, without danger of the refrigerant I escaping from its container.

The barrel described is provided with the usual bung *l for filling the same and any desired plugged inlet 8 for charging the barrel in the usual manner by which expansive pressure is "given to the liquid therein. $5

When it is desired to apply my refrigerant container to a barrel or other receptacle already constructed, the outer end of the container is modified by making the wide annular disc-flange 6' on the said end so that it will bear upon the outer face of the barrel head. An upward peripheral rim 9 at the edge of this flange forms a saucer and facilitates turning it and guides the deposit of the refrigerant in the container. Any suitable means for securing the sealing engagement of said flange with the outer face of the head may be employed, such as by a wedge projection 8 extending from the side of the tube below the outer flange 6, and having its inclined upper face flrm- 1y engaged with the inner face of said barrel head by turning the container similar .to a screw cap on a fruit jar. The wedge shape provides increased transverse strength to correspond to increased reaction of screw-like engagement. The

Wide annular disc-flange extends radially beyond and'cover's the notches. f -To facilitate the mounting of this modified detachable form of container in a barrel head already built, such wedge-shaped projection 8 is made in multiple, such as three and correspond to equally spaced portions of screw threads. These projections will pass through openings 9 in the barrel head and be screwed into firm wedging contact with the inner face of the barrel head, as indicatedin'Figs. 6 and '7, and draw the outer flange 6' tight against the head in sealing position. Any suitable screw fastening or other means to prevent backward rotation of the wedge projections 8 may be employed. Referring again to Figs. 6, 7 and 8 it will be seen that the ice tube 3 can be quickly removed from the opening in the head of the keg to allow cleaning the keg. This opening also facilitates spraying pitch to line the barrel before putting the beer in it; this is much better than the usual practice of spraying the inside of the barrel through the bunghole.

' This desired detachability is secured in my construction by the screw-wedging action of the inclined upper faces of the projections 8 which are like spaced portions of screw threads; and such radial lateral projections as shown being on the outer surface of the tube 3 adjacent the flange, by engaging the under side of the head or otherwise,'will act to draw down the upper flange 6' upon a washer or other sealing means between said flange'and the top of the head. Also the rim 9' on the flange 6, affords leverage in turning the tube into and out of screw engagement,

and guides the ice being placed in the tube 3. This rim and'i lange are located below the top ends of the barrel staves so'that they are protected thereby from damage or dislodgment when transporting the barrel. The tube with its lateral projections spaced inward from the flange, the outer end flange and its peripheral rim, are integrally cast or otherwise formed in one piece; the screw-threaded rotaryaction is obtained by any suitable means such as a spanner wrench engaging the flange in order to screw it tightly against a sealing washer or other means to pre vent leakage. I

Other means than the openings 9 for the passage downward of the wedge-shaped projections 8 similar to portions of screw threads, may be used, and His evident that the cooling tube 3 can be quickly placed in position in the barrel, or removed therefrom, by rotating the same into and out of its sealing position.

Leaks sometimes occur in a barrel or keg, and another advantage of my opening in the head of the same is to facilitate access to the inside for repairing said leak or leaks between the joints of the staves which evidently must be done from the inside, on account of the outward pressure of the charging gas. Also my detachable construction facilitates washing the beer keg after use and before refilling.

The receptacle for the material to be cooled by my device may be closed and resistant to internal pressure as described in the application of my device to a beer barrel; in the use of my cooling device for other material, such as ice- 'cream, the receptacle may be similar to that shownin Fig. 9 in which the receptacle l' is provided with a suitable removable cover ID to protect the contents and give ready access thereto.

In this exemplification, I prefer to make the tubular container 3 secured in its central position by a screw fastening such as a stud l l forming the screw connection between the bottom H of 1 the receptacle I and the bottom end [3- of the refrigerant container, other suitable substance to be cooled is thus sub-c ject to the cooling action of the refrigerant in the container submerged therein.

1 For recharging the container 3', the cap 4' may be removed; or if desired the container may be unscrewed from its screw connection. with the bottomof the receptacle, and removed from the receptacle for cleaning, recharging, or any other reason. 1

I: do not confine myself to the construction hereinshown and described except by the appended claims.

- By mydevice the usual cooling coil between the barrel and the service point is done away with. The cooled liquid is drawn directly from the barrel and does not suffer contamination from the usual contact with the metal of the cooling coil.- In my device the cooled liquid suffersno delay in reaching the service point and avoids contamination and the cooled liquid is delivered directly to the customer. The usual cooling coil is unsanitary and expensive; my device also avoids the usual waste of beer which has to be drawn from the coil after it has been there severalhours and this waste is avoided in my device as I draw it directly in its cooled condition from the barrel.

Having fully described my invention whatI claim as new and desire to secure by Letters Patent, is:

1. In combination, a beer keg having an open ing in one head, and a cooling device detachably disposed therein and comprising a closed refrigerant tube characterized by an end flange bearing on the outer face of the head in sealing position, and having an upwardly extending peripheral rim thereon, and wedging means carried by said effect sealing engagement of flange and head, said rim affording leverage for the rotary wedging action and a guide for directing the refrigerant material being deposited into said tube.

2. A cooling device having a refrigerant container cast or formed integrally in one piece and consisting of a tube permanently closed at one end and characterized by a wide annular disc-flange at the other end extending radially beyond lateral radial projections having inclined bearing surfaces spaced from the flange and spaced apart around the outside of the tube,

substantially as described.

tube and rotatably engaging said head to 7 The ice-cream or detachably disposed in said opening and comprising a closed refrigerant tube having an end tion to pass through said notches during insertion of the tube, each of said projections being wedge-shaped in cross-section and bearing against the inner wall of the head upon rotation of the tube relative thereto for securing the tube 5 to the head. 7

PAUL A. CUSANELLI.

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