US2000467A

US2000467A - Cooling, freezing and heating apparatus

Info

Publication number: US2000467A
Application number: US561841A
Authority: US
Inventors: Lindseth Theodore
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-09-09
Filing date: 1931-09-09
Publication date: 1935-05-07
Anticipated expiration: 1952-05-07

Description

y 7, 1935. T. LINDSETH 2,000,467

COOLING, FREEZING, AND HEATING APPARATUS Filed Sept. 9, 1931 IN V EN TOR. 77/500065 50 055771 BY @Qavwww A TTORNEY lin Patented May 7, 1935 S ptember]; 1031. he. at)

e ch- 01014514 My invention relates tocooling,

tion are: 3 I

First. to provide an apparatus of this class a heating'medium' I Second, to provide 'an'appa'ratus oi this class adapted for small installs; l conduit 3, there is provided a blower 4, so as to maintain a flow of air therethrugh.- The other end of the air'conduit coil 2 is connected to an which is particiflarly M0118; 0

Third, to provide anapparatusof'this class which enables a room or roomstnere-- with'to be maintained at'a given temperature anywhere from a-point considerab 1? ing toa moderately hottemperature;

. l'burth. to'provide anapparatus of this classwhich maintains acirculation of air in the room with which itis'connected so as to maintains uniform throughout the room: and

Fifth. to provide on the whole a noveily constructed ireez'ing'and heating apparatus" which is extremely simple or construction pro-' portionalto its functions, disable, eiiicient in its actionkamlj which will readily deteriorate or get out of order.

with theseand otherobiefcts in view as" will appear hereinafter; my invention consists of cer-'- tainnovel featuresof construction, combinationand enter parts and portions as will be hereinafter "described in detail and par i larly set forth in the appended-clams; reference I V is an electrically operated uimmersion heater *the characters of reference thereon, which form a part of this application. in which:

Figure l is a diagrammatical sectional view of the apparatus with parts and portions as shown in elevation; Fig. 2 is a transverse sectional view taken along section line 2-4 of Fig. 1; Fig. 3 is another transverse sectional view taken alo section line H of Fig. i; Fig. 4 is an enlarged transverse sectional view of the heating means taken through 4-4 of Fig. 3; and Fig. 5 is a diagrammatical view showing the thermostat and its relation to the reirigeration and heating units.

Similar characters of reference refer to simi lar parts and portions throughout the several views of the drawing.

Brine tank I, air conduit will, air intake conduit I, blower 4, air outlet conduit 5, freezing coils 0 and 1, expansion valve 8, refrigerating unit 8, heater l0, and thermostat ll, constitute the principal parts and portions of my cooling, freezing and heating apparatus.

A brine tank I is located as near as feasible to the room or chamber C in which the temperatingapparatmandtheobiectsofmyinwn heatinsulatingmaterial.

whichthe' air cooling is ture is to be controlled. The tank is filled with brine and the walls and top arerprovided with Coiled within the brine tank. I is an air condui'tl of relatively lame cross section. The upper end of the coil 2 is connected to an intake conduit 3 whichleads from the chamber C to the 6011. Somewhere between the air intake outlet-conduit I which leads from the coil to the {chamber 0' preferable near the floor thereof.

Arrangedinthebrinetankareapairoitreez- I surrounds the other air conduit coil, as shown in Figsgl andz. The freezing coils 6 and I are connected together and form a single length of pipe, the ends of which protrude from the brine tankfthe intake plpebelng provided with a which may mm the iorm of an open loop, the ends Ifla ofwhich protrude from the side of the brine tank, as shown in Fig. 3.

The heater comprises a core or heating element iilb such as carbon or resistance wire, which is adapted to become heated when current passes therethrough, the core surrounded by suitable insulating material Illc, which is retained in place by suitable Jacket or casing ltd. The insulation prevents actual contact between the brine and the heating element lllb, thereby eliminating the possibility of a short circuit.

The ends I01: 01' the heater i0 protrude through the side wall of the tank and are connected to a suitable source of electricity. The ends may be enclosed in a suitable box illd mounted on the outside of the brine tank.

If it is desired to cool the chamber, the refrigerating unit 8 is started, which enables the freezing coils 6 and I to reduce the temperature of the brine in the tank I, at the same time the blower circulates air through the air conduit 2, thereupon the brine cools the air therein. By regulating the expansion valve 8 of the refrigerating unit 9, the action of the freezing coils may be controlled, so that the temperature of the brine is regulated, and the temperature of the same is brought to the desired point.

Should it be desired to warm the chamber, the refrigerating unit is turned oil and the circuit through the heater II is turned on, whereby the brine is warmed so as to, in turn, warm the air within the air conduit coil, thus the temperature of the chamber may be held at any point throughout an extremely wide range.

The above may be accomplished automatically by means of a suitable thermostat controlled switch I I arranged to control the heating unit or the refrigerating unit, thus permitting a continuous range of temperature control beginning below and terminating above normal temperature.

Although the liquid within the tank I is referred to as brine, any liquid having a low freezing point and a high vaporization point may be used. Certain kinds of oils may be used as well as many solutions. If liquids which do not conduct electricity are used, the heating element need not be provided with insulation.

It is obvious from the construction as illustrated in the drawing and described in the foregoing specification, that there is provided a cooling, freezing and heating apparatus as aimed at and set forth in the objects of the invention, and though I have shown and described a particular construction, combination and arrangement of parts and portions, I do not wish to be limited to this particular construction, combination and arrangement, but desire to include in the scope of my invention the construction, combination and arrangement substantially as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

i. In a cooling, freezing and heating apparatus, an air circulating system including a chamber, an air conduit connected therewith, and fan means for maintaining circulation of air through said conduit and chamber, a portion of said conduit arranged in a coil, a tank for receiving said coil, 9. temperature transmitting medium contained in said tank in direct contact with said coil and immersing the same, freezing coils positioned and arranged both inside and outside of the coil in said conduit and immersed in said temperature transmitting medium, a heating medium positioned in alignment with and below the coil in said conduit immersed in and in direct contact with the temperature transmitting medium in said tank,.said freezing coils forming guide means for directing the temperature transmitting mediums as heated around said conduit coil.

2. In a cooling, freezing and heating apparatus, an air circulating system including a chamber, an air conduit connected therewith, and means for maintaining circulation of air through said conduit and chamber, a portion of said conduit arranged in a coil, a tank for receiving said coil, a temperature transmitting medium contained in said tank in direct contact with and immersing said coil, freezing coils positioned and arranged both inside and outside of the coil in said conduit and in said temperature transmitting medium, a heating medium positioned in alinement with and below the coil in said conduit immersed in and in direct contact with the temperature transmitting medium in said tank, said freezing coils forming guide means for di recting the temperature transmitting mediums as heated around said conduit coil, and an automatic control means common to both said cooling means and said heating means.

3. In a cooling, freezing and heating apparatus, an air circulating system including a chamberinwhichtheairistobecooledorheated. an air conduit connected at its opposite ends to the upper and lower sides of said chamber, a coil intermediate its ends, a suction fan intermediate said coil and the upper end of said conduit, a tank in which said coil is mounted, brine in said tank in direct contact with said coil and immersing the same, freezing coils positioned inside of said coil in said conduit, other freezing coils positioned and arranged outside of the coil in said conduit and all immersed in said brine, an electric immersion heater positioned in alinement with and directly below said coilinsaidconduitandimmersedinsaidbrine in said tank, said-freezing coils forming guide means for directing the heat from said electrical cirgmersion heater as heated around said conduit 'I'HEODOREIW 0