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Патент USA US3059456

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Oct. 23, 1962
A. R. CONSTANTINI ETAL
3,059,446
MOISTURE VAPORIZER SYSTEM
Filed may a, 1961
2 Sheets-Sheet l
United StatesPatent O?lice
3,059,446
Patented Oct. 23, 1962
2
1
tus with a refrigerating device, there will be seen a refrig
erator 10 having two refrigerating compartments accessi
3,059,446
ble respectively through the left-hand door 11 and right
MOISTURE VAPORIZER SYSTEM
Anthony R. Costantini, Philadelphia, and Anthony Di
Augelus, Manoa, Pa., assignors to Victory Metal Man
ufacturing Company, doing business as Victory Metal
hand door 12, and a compressor compartment concealed
by the lower left-hand panel 13 within which is disposed
all of the refrigeration apparatus with the exception of
the cooling coils 14, which latter are disposed between
the refrigeration compartments extending from front to
Manufacturing Corporation, Plymouth Meeting, Pa.,
a corporation of Pennsylvania
,
Filed May 8, 1961, Ser. No. 108,453
3 Claims. (Cl. 62—150)
rear of the box behind the center mullion 15. The refrig
10 eration apparatus compartment is suitably-apertured at
the bottom and rear, for example, to provide good circu
lation therethrough of the air external to the refrigerator
10, and this compartment is also suitably insulated from
This invention relates generally to moisture vaporizing
apparatus, and more particularly relates to apparatus for
vaporizing moisture accumulated by the action of cooling
coils employed in refrigeration devices, to thereby dispose
the refrigerating compartments by insulation disposed
of condensed water vapor by passing the same back into 15 beneath the floor of the left-hand compartment and be
tween the walls 16 and 17 of the center partition of the
the atmosphere exterior to the refrigerating device and
v refrigerator.
hence eliminate the need for providing a waste water drain
Closing the top of the refrigerator center partition and
normally employed to carry off the condensate into a
disposed immediately below the cooling coils \14 is a drip
plumbing system.
‘
A primary object of this invention is to provide a novel 20 pan 18 which captures the water condensate dripping
downward from the outer surfaces of the cooling coils
moisture vaporizing apparatus adapted for use with a
14, the condensation of course occuring as the air in the
refrigerating device which materially simpli?es the in
refrigeration compartments passes around the coils and
stallation of the latter by making it unnecessary. to pro
is cooled by the cold refrigerant ?owing through the coils
vide a water run-off drainage system normally employed
14. The water collected in the drip pan 18 passes down
to carry off water vapor condensed by the refrigerating
ward through a drain pipe 19 into the vaporizer 2i)‘ which
device during operation‘ thereof.
is located in the compressor compartment. The drain pipe
Another object of this invention is to provide a novel
19 passes ?rst down into the center partition between the
moisture vaporizing apparatus which may be installed
walls :16 and 17 and into a trap 21 before turning laterally
directly in a refrigerating apparatus, during construction
and passing through the center partition wall 16 into the
thereof or subsequent thereto, which includes a heat
compressor compartment. The trap 21 will always con
able water receiver from which vaporization of ‘collected
tain water and will therefore prevent the transmission of
water takes place directly, and in which the means for
heat upward from the vaporizer 2i} through the drain
pipe 19 and into the refrigerated compartments of the
heating the water receiver is automatically activated and
deactivated according to the receiver temperature.
refrigerator 16’. Thus, water accumulating in the drip pan
18 ?ows downward into the vaporizer 20 where it is
transformed from a liquid phase to a vapor phase and
is so installed within a refrigerating device that while water
carried out of the refrigerator by the normal air circula
collected in the heatable receiver is vaporized and re
tion through the compressor compartment within which
moved from the refrigerating device, heat generated by
the vaporizing apparatus is prevented from entering the 40 the vaporizer 20 is located.
As best seen in FIGURES 2, 3 and 4, the vaporizer 20
refrigerated areas of the refrigerating device.
itself includes a shallow rectangular pan 22 to one wall
The foregoing and other objects of the invention will
of which is secured a mounting bracket 23 and from the
become apparent from a reading of the following speci
undersurface of which pan downwardly project a pair of
?cation in conjunction with an examination of the ap
Still another object of this invention is to provide a
novel moisture vaporizing apparatus as ‘aforesaid which
pended drawings, wherein:
FIGURE 1 is a perspective view of a typical refrigera
tor device of the center mullion cooling type having in—
45
angle brackets 24 positioned proximate the opposite ends
of the pan 22, a pancake heater 25, thermostat assembly
26 and a ventilating cover 27 which encloses the heater
and thermostat.
corporated thereinto the moisture vaporizing apparatus
As best seen in FIGURES 3, 4 and 5, the pancake
according to the invention, portions of the refrigerator
being sectioned away to reveal the general organization 50 ty-pe heater 25 is of a generally ?attened circular disc
form and is secured ?atwise in broad surface contact
of parts;
‘with the un-dersurface of the pan 2-2 so that ef?cient heat
FIGURE 2 is an enlarged perspective view of the mois
ture vaporizing device according to the invention‘ shown
in smaller form in the illustration of FIGURE 1;
FIGURE 3 is a bottom view of the moisture vaporizing
~ device of FiGURE 2 with a portion of the bottom cover
sectioned away to disclose the heater and thermostat ar
rangement which operates to heat the above-lying con
densate water receiver and maintain the temperature of
the receiver within certain predetermined limits;
transfer between the heater and the pan is obtained, the
heater being physically secured lby means of the nut 28
and threaded stud 29 which latter projects downward
from the pan undersurf'ace through a central hole pass
ing through the heater. The heater 25 contains an in
ternal spiralled resistance wire’ heating element 30
spiralled generally as shown in FIGURE 5.‘ The ends 31
60 and 32 and tapping point 33 of the resistance wire ele
ment 30 are brought through the bottom of the-case 34
FIGURE 4 is an enlarged front elevation of the mois
‘0f the heater 25 through insulating bushings 3'5 and ter
ture vaporizing device of FiGURE 2 illustrated with the
bottom cover displaced downward to further illustrate the _ minate in threaded studs 36 adapted to thread-edly receive
the nuts 37. The resistance wire intermediate tapping
heater and thermostat structure shown in FIGURE 3;
FIGURE 5 is a representational showing of a resistance 65 point 33 may be taken ‘at a point closer to one end than
to the other of the resistance wire 30 so that four differ
wire type of pancake heater such as that illustrated in
ent resistance values may be obtained by proper strap
FIGURES 3 and 4.
ping of the terminals. Maximum resistance will v‘be real
In the several ?gures, like elements are denoted by
ized by utilizing the terminals 31 and 32 as the points
like reference characters.
‘of electrical input, lower values of ‘resistance beingreal
Referring ?rst to FIGURE 1 for a general understand
ized when connection is made to the terminal pair 32
ing of the organization of the moisture vaporizing appara
8,059,446
0)
0
33 or the terminal pair 31—33, and the minimum resist
ance condition will occur when the terminals 31 and 32
are strapped together as ‘a common terminal and the ter
minal 33 used as the other point of electrical input.
Since the current ?owing through the resistance wire of
the heater is linearly proportional to the amount of re
sistance placed in the circuit, and since the heat gener
ated is proportional to the square of the current ?owing,
then, as would be expected, maximum heat generation
below approximately 140" 'F. the thermostatically con
trolled switch in the thermostat assembly 26 is caused to
close to thereby energize the heater 25. As the pan tem
perature rises, the energy level of the water molecules
is raised and the high energy molecules ‘overcome the
Water surface tension and escape into the atmosphere.
This process continues until all of the water in the pan
22 has been evaporated. Thereafter, the temperature of
the pan 22 will begin a further rise which will continue
will occur with minimum effective resistance and mini~ 10 until the thermostat senses a temperature of ‘approxi
~mately 200° F. and as a consequence caused the con
mum heat will be generated when the maximum resist
tacts of the thermostatically controlled switch to open
ance is employed.
‘
and thereby deenergize the heater 25. The pan 22 will of
Disposed immediately to the left of the heater 25 is
course begin to cool down and when the lower limit
the thermostat assembly 26 which comprises a metal base
38 having a pair of opposite side ?anges 39 disposed ?at
wise against the undersurface of the pan‘ 22 and secured
thereto as, for example, by a pair of spot welds 4ft so
temperature of 140° F. is reached the heater will again
be energized ‘by the thermostat assembly and evapora
that a good surface contact between the thermostat met
al base 38 and the pan 22 results. The thermostat itself
be initiated. The vaporizer apparatus operates continu
ously in this manner and continuously evaporates the
is contained within the plastic body 41 and includes an
internal heat transferring connection to the metal base
condensate water as it is collected.
Having now described our invention in connection with
tion of subsequently collected water in the pan 22 will
a particularly illustrated embodiment thereof, it will be
understood that variations and modi?cations thereof may
occur from time to time to those persons normally skilled
tained within the thermostat body 41, but not visible, is lo GA in the art without departing from the essential scope or
a switch responsive to the condition of the thermostatic
spirit of our invention, and, accordingly, it is intended to
claim the same broadly as well as speci?cally ‘as indicated
element and which switch has terminals 42 brought out
by the appended claims.
to the surface of the thermostat for connection into the
What we claim as new and useful is:
electrical circuit which controls the energization of the
38 so that the temperature of the pan 22 is transmitted
through the thermostat base 38 to the temperature sen
sitive element contained within the body 41. Also con
heater. As shown, 'a jumper link 43 connects one of the 30
thermostat switch terminals 42 to the threaded stud 36
which terminates the resistance wire end '31 of the heater
25, while the other thermostat switch terminal 42 has
secured thereto one conductor 44 of a three wire cable
47, a second conductor 45 of which cable connects to a
1. A refrigerating apparatus including a thermally in
sulated refrigerated compartment subdivided into three
sideeby-side intercommunicating regions, a pair of side
by-side doors having a center mullion therebetween, said
doors opening respectively into the outer ones of the three
refrigerated compartment regions with the center region
jumper strap 48 also secured to the threaded stud 38
extending from front to rear of the compartment directly
terminating the end 32 of the heater resistance wire.
behind the center mullion, a cooling coil located complete
The third wire 46 of the cable 47 grounds the metal va
ly within the center region of said refrigerated compart~
porizer apparatus 20 to the ground point of the electri
ment for cooling the air in the entire compartment, a
cal system by virtue of its connection to the grounding 40 water collecting drip pan disposed completely within said
stud 49. The entire cable 47 is projected through and
refrigerated compartment center region and vertically be~
physically secured to one of the angle brackets 24 by
neath said cooling coil for catching the drippage of water
means of the strain relief 50, and the thermostat and
which condenses on the coil outside surfaces and which
heater units are protected ‘by the enclosing ventilating
has been extracted by the cooling coil from the air within
cover 27, the ends of which ‘are secured to the angle 45 said compartment, heat generating water evaporating
brackets 24 by a plurality of self tapping screws 51.
means located externally to said refrigerated compartment‘
From the foregoing, it will be understood that the
and in communication with the atmosphere, and means
conductors 44 and 45 of the three wire cable 47 are con
for conduiting the condensed water from the drip pan to
nected to a suitable source of electrical current capable
the evaporator means including heat blocking means
of energizing the heater 25 when the thermostatically
effective to prevent transfer of heat from said heat gen
controlled switch in the thermostat assembly 26 closes,
erating evaporator means to said water collecting drip
the heater 25 becoming deenergized when the thermo
pan, said evaporating means comprising a moisture hold
statically controlled switch opens to thereby break the
ing pan, a disc type electrically energizable heater de
electrical continuity between the conductor 44 and jump
vice secured to the undersurface of said evaporator pan in
er strap 43. In a typical case, the heater 25 may be, for 55 broad area contact therewith, a thermostat assembly se
example, a Chromalox type HSP-3 l—-3 and the thermos
cured to the undersurface of said evaporator pan including
tat may be a Klixon type 20‘400L29—324. This particu
a temperature sensitive element thermally coupled to said
lar type of thermostat is one wherein the switch contained
pan and an electrical switch openable under control of
therein is caused to close when the temperature of the
said temperature sensitive element when the latter senses
metal base 38 drops below approximately 140° F. and 60 a pan temperature higher than a ?rst predetermined value
opens when the temperature rises above approximately
and closable under control of said temperature sensitive
200° F. It will thus be appreciated that vaporization of
element when the latter senses a pan temperature lower
water which is collected in the pan 22 takes place by
than a second predetermined value, and conductor means
heat assisted evaporation rather than by ‘any violent boil
coupled‘ to said heater and said thermostat assembly for
ing action which would occur if the temperature of the 65 energizing said heater from a source of electric current
pan were ‘allowed to rise to water boiling temperature.
when said electrical switch closes.
Operation of the vaporizing apparatus is carried out
2. A refrigerating apparatus including a thermally in
in the following manner. Assuming that su?icient water
sulated refrigerated compartment subdivided into three
has been deposited in the ‘drip pan 18 positioned be~
sideAby-side intercommunicating regions, a pair of side
neath the cooling coils 14 of the refrigerating device, 70 by-side doors having a center mullion therebetween, said
so that the water in the trap 21 rises to the point where
doors opening respectively into the outer ones of the three ‘
water ?ow takes place through the pipe 19‘downward
into the vaporizer pan 22, the temperature of the pan
refrigerated compartment regions with the center region
extending from front to rear of the compartment directly
22 will start to drop due to the temperature of the Water
behind the center mullion, a cooling coil located complete
75
?owing thereonto. As soon as the pan temperature drops
ly within the center region of said refrigerated compart
3,059,446
5
ment for cooling the air in the entire compartment, a
water collecting drip pan disposed completely within said
refrigerated compartment center region and vertically be
neath said cooling coil for catching the drippage of water
which condenses on the coil outside surfaces and which
has been extracted by the cooling coil from the air within
said compartment, heat generating water evaporating
means located externally to said refrigerated compartment
6
ing means located externally to said refrigerated com
partment at a lower elevation than said drip pan and in
communication with the atmosphere, and a water drain
extending downward from said drip pan and through the
thermal insulation of said refrigerated compartment to
said evaporator means for conduiting the condensed
water from the drip pan to the evaporator means, said
water drain including a water trap therein effective to pre~
vent transfer of heat from said heat generating evapora
at a lower elevation than said drip pan and in communica
tor means to said water collecting drip pan, said evaporat
tion within the atmosphere, and a water drain extending
ing means comprising a shallow rectangular water re
downward from said drip pan and through the thermal
ceiving pan to one wall of which is secured a mounting
insulation of said refrigerated compartment to said evapo
bracket and from the underside of which pan down
rator means for conduiting the condensed water from the
lwardly project a pair of cover securing brackets positioned
drip pan to the evaporator means, said water drain includ
ing a water trap therein effective to prevent transfer of 15 proximate the opposite ends of the water receiving pan,
a disc type electrically energizable heater device secured
heat from said heat generating evaporator means to said
to the undersurface of said water receiving pan in broad
water collecting drip pan, said evaporating means com
area contact therewith, a thermostat assembly secured to
prising a moisture holding pan, a disc type electrically
the undersurface of said water receiving pan including a
energizable heater device secured to the undersurface of
said evaporator pan in broad area contact therewith, a 20 temperature sensitive element thermally coupled to said
thermostat assembly secured to the undersurface of said
evaporator pan including a temperature sensitive element
thermally coupled to said pan and an electrical switch
openable under control of said temperature sensitive ele
water receiving pan and an electrical switch openable
under control of said temperature sensitive element when
the latter senses a pan temperature higher than a ?rst
predetermined value and closable under control of said
ment when the latter senses a pan temperature higher than 25 temperature sensitive element when the latter senses a
pan temperature lower than a second predetermined
a ?rst predetermined value and closable under control of
value, and conductor means coupled to said heater and
said temperature sensitive element when the latter senses
said thermostat assembly for energizing said heater from
a pan temperature lower than a second predetermined
a source of electric current when said electrical switch
value, and conductor means coupled to said heater and said
thermostat assembly for energizing said heater from a
source of electric current when said electrical switch
closes.
closes, said heater comprising a resistance wire heating
element and including a plurality of terminals projecting
externally of the heater casing which connect to selected
points along the length of said resistance wire, said con
3. A refrigerating apparatus including a thermally in
ductor means being ‘adapted for coupling to selected ones
sulated refrigerated compartment subdivided into three
sideaby-side intercommunicating regions, a pair of side 35 of said plurality of terminals to thereby select a desired
heat output from said heater, and a shallow rectangular
by-side doors having a center mullion therebetween, said
ventilating cover removably secured beneath said water
doors opening respectively into the outer ones of the three
receiving pan to said pair of cover securing brackets and
refrigerated compartment regions with the center region
completely enclosing the heater device and thermostat.
‘extending from front to rear of the compartment directly
behind the center mullion, a cooling coil located com 40
pletely within the center region of said refrigerated com
partment for cooling the air in the entire compartment,
a water collecting drip pan disposed completely within
said refrigerated compartment center region and verti
cally beneath said cooling coil for catching the drippage 45
of water which condenses on the coil outside surfaces and
which has been extracted by the cooling coil from the air
vwithin said compartment, heat generating water evaporat
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,404,3‘17
1,590,286
1,678,885
2,016,368
2,522,718
Pieper _______________ __ Jan. 24,
Davis _______________ _ June 29,
Thomas _____________ __ July 31,
Gaugler ______________ __ Oct. 8,
Huck ______ __________ _.. Sept. 19,
1922
1926
1928
1935
1950
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