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Патент USA US3094153

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' June 18, 1963
1' A. BEACH
3,094,143
COMBINATION EXPANSION TANK VALVE
Filed June 23, 1960
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2 Sheets-'Sheet 1
June 18, 1963
T A. BEACH
3,094,143
COMBINATION EXPANSION TANK VALVE
FîLle‘d'June- 23, 1960
2 Sheets-Sheet 2
Fig. 4
23
Ffg. 5.
23
23
>
INVENTOR.
TAW/YM!) 3576// .
BY
.
United States
Tice
3,094,143
Patented June 18, 1963
1
2
3,094,143
member 18 is provided with an upper threaded end 20,
and arranged below the threaded end 20 is a shoulder 21
having ñat lfaces whereby suitable tools such as a wrench
CQMBINATION EXPANSION TANK VALVE
T Arnold Eeach, 59 Bemis Road, Weston, Mass.
Filed .lune 23, 196i), Ser. No. 38,249
1 Claim. (fill. 137-588)
can be arranged in engagement therewith. The interior
of the portion 19 is hollow so as to provide «a passageway
22 lfor a purpose to be later described. The body Imem
ber 18 is also provided with opposed fluid inlet »and out
let fittings 23 and 24, and a hose or conduit 25 is adapted
to be connected to the outlet fitting 24, while the iitting
expansion tank.
One of the main purposes of the invention is to pro 10 23 is .adapted to be suitably connected to the conduit 14,
as for example as shown in the drawings.
vide a combination expansion tank valve which can be
There is provided in the interior of the :body member
adjusted to control the water when an lexpansion tank is
1S Áa tapered valve seat which is indicated generally by the
being iilled, and wherein the valve can also be set or ad
numeral 26, :and the valve seat 26 includes upper and
justed so as to permit the water to be removed and where
lower .separated tapered sections 27 .and 28, FIGURE 3.
in the air in .the tank can be replaced or replenished so
The numeral 29“ indicates a tapered valve member which
as to prevent vacuum hold back on the water in the tank.
is rotatably and vertically movable in the valve seat 26,
Another purpose of the invention is to provide a com
and the valve member 29 has a closed bottom as in
bination 'expansion tank valve which includes a tapered
dicated by the numeral 30, while the upper end of the
seating valve therein, and wherein there is also provided
a ball seating seal arrangement which prevents water 20 valve member 2.9 is open. The interior of the valve mem
ber 29 is |hollow as indicated by the numeral 3d, so that
from spilling back through the air tube, and in addition
the interior 31 communicates with the lower portion of
the combination »expansion tank valve of the present in
the passageway Z2. The valve member ‘29 ‘further in
vention is constructed so that if water pressure becomes
cludes a -side wall portion 32 which is provided with a
excessive in the lexpansion tank, pressure will push down
on a movable valve member to compress a spring so as 25 slot 33 therein, FIGURE 2.
As shown in the drawings an externally threaded skirt
to permit water to pass out of a port or opening so as to
or ilange 34 depends trom the body member 18, and the
relieve excess pressure temporarily and at the same time
skirt 34 is provided with a hollow interior which deiines
provide a warning or signal means regarding the condi
a bore or chamber ‘35 that communicates with the lower
tions present in the system.
A still further object `or purpose of the invention is to 30 end of the valve seat 26, FIGURE 3. A sleeve 36
threadedly engages the Iskirt 34, and the lsleeve 36 is pr0~
provide an improved combination expansion tank valve
The present invention relates to a valve and especially
to a valve -for use in controlling the water in filling an
which will be durable and eiiicient in use, one which will
be simple and easy to manufacture, and one which can be
placed upon the market at a reasonable cost.
With these and other objects and advantages in View,
the invention consists of a novel construction, arrange
ment and formation of parts, as will be hereinafter more
vided with a shouldered portion 37 on its upper end
whereby .a suitable tool such as a wrench can engage the
iiat surfaces of the shoulder 37 in order to conveniently
rotate the sleeve 36. The upper inner portion of the
sleeve 35 is recessed as at 3S, and a sealing member or
washer 39‘ is positioned in the bottom `of the recess 38,
and there is provided a coil spring `40 which engages the
specifically described, claimed land illustrated in the ac
bottom wall 3i) of the valve member 2.9` as `for example
companying drawings, Iforming a part of this specification,
and in which drawings:
40 as shown in FIGURE 2. The sleeve 36 is provided with
a port or opening 41 in the inter-mediate portion thereof.
FIGURE l is a ‘fragmentary sectional view illustrating
The numeral I42 indicates packing which is arranged ad
the combination expansion tank valve installed in a hot
jacent the lower end of the sleeve 36, and a gland nut
water heating system in a building.
or retainer 43 serves to maintain the packing `42 in place
FIGURE 2 is .an enlarged vertical sectional view taken
through the combination expansion tank valve of the 45 contiguous to the lower end of lthe sleeve 36.
The numeral 44 indicates a hollow vertically disposed
present invention.
tube which extends through t-he gland nut 43 and through
FIGURE 3 is a fragmentary sectional view showing
the sleeve 36, and this tube `44 also extends through the
the parts separated or disassembled.
valve member 29 and through the passageway 22 in the
FIGURE 4 is a `fragmentary sectional view showing the
upstanding portion 19, and -the valve member 29‘ and tube
valve in drain position.
44 are secured together in any suitable manner. The
FIGURE 5 is .a view similar to 'FIGURE 4, but show
tube 44 is provided with an aperture 45 which is mounted
ing the valve in a different position.
for movement into and out of registry or alignment with
Referring in detail to thedrawings, the numeral 10
the por-t 41 in the sleeve 36, as for example as shown in
indicates the combination expansion tank valve of the
present invention and in FIGURE l there is illustrated a 55 FIGURE 2. A plug 46 closes the lower end of the hollow
tu-be `44, anda handle or knob 47 is affixed to the bottom
use of the valve 10' wherein it will be seen that the
of the tube 44 in any suitable manner, so that by manually
numeral 11 indicates a hot water heating boiler for heat
gripping the handle 47 the tube 44 can be rotated in order
ing radiators, and a heating means 9 is adapted to be con
to turn the Valve member 29 in the seat 26.
nected to radiators on all of the various floors of the
building. The numeral `12. indicates -a portion of a build 60
A fitting 4S is suitably ‘affixed to the upper end of the
ing in which the various elements are located, Aand the
tube 44, and mounted in the ,fitting -48 is a support mem
numeral l13 indicates a return ilow from the radiators,
be.; 49 which has a vertically disposed passageway 50
while the numeral 14 indicates a conduit which is con
therein, and there is provided an arcuate valve seat 51
nected between the heating main 9‘ and the valve 10, and
adjacent the upper end of the support member 49. A ball
the numeral §15 indicates a water -supply line ¿for the ‘heat
valve S2 is mounted for movement into and out of bridg
ing system. The expansion tank 1-6 may be supported in
ing or closing relation with respect -to the valve seat 51 and
a suitable location in the building by means of brackets
passageway Si?, and the ball valve 52 is normally urged
or the like as indicated by the numeral 17.
or ‘biased down into engagement with the seat l51 by
As shown in the drawings the combination expansion
means
of a spring member 53-. The upper end of the
tank valve 10 of the presen-t invention includes a body 70
fitting 48 may be closed or turned inwardly as indicated
member 1S which is provided with an upstanding portion
by the numeral S4 so as to provide a retainer for the spring
1_9, FIGURE I2. The upstanding .portion 19 of the body
,
3
3,0
Y
53, and an aperture or opening 55 is arranged in the top
portion 54 of the ñtting 48.
From the foregoing, it is apparent that there has been
provided a combination expansion tank valve, and it is
to be noted that the valve `1t) can be used in different sys
tems wherein water which is to be heated for the purpose
of heating a building or other area. The valve 10 is
adapted to be arranged »as shown in FIGURE 'il so that its
upper threaded end 20 threadedly engages la suitable yboss
or opening in the bottom of the expansion tank 16, and
with the parts Iarranged las shown in FIGURE 2 for ex
ample, water yfrom the tank 16 will drain down through
»the passageway 22 and then pass through the interior 31
and this water will then pass out through the slot 33 and
out through the ñtting 24 and then through the hose 25
thus draining for disposal. At the same time, with the
parts arranged as shown in FIGURE 2> air can enter
through the port `41 and then Ithrough the aperture 45 and
this air can then pass upwardly through the hollow tube
44 and then through the passageway 50, and as the Water
in the tank '16 is passing downwardly through the pas
sageway `22, it will be `seen that a vacuum Ipressure will
be present above the water in the tank -and this will have
the effect of lifting the ball valve 52 against the `force of
the spring 53 and with the ball valve 52 in raised posi
tion, the -air can enter the tank through the passageway 50
and through the aperture 55 so as to displace the water
which is being drained out of the expansion tank.
The view shown in FIGURE 4 corresponds to the view
shown in FIGURE 2 so that it will be seen that the water
can pass out through the slot 33 and then through the Íitting
24. In FIGURE 5 the valve member 29 is shown in a
shifted position which is 180 degrees yout of phase with the
position shown in FIGURE 4 so that the slot 33 is in
.
94,143
4
accompanying drawings, certain alterations and changes
may appear to one skilled in the art to which this in
vention relates, during the manufacture or use of the
same, and therefore, the right to make such alterations
and changes as shall fairly fall within the scope of the
appended claim is reserved.
What is claimed is:
A combination expansion tank valve comprising a body
member including Ian upstanding portion having an upper
externally threaded end, said upstanding portion having
`an inner vertically disposed passageway therein, a shoulder
on said body member below said threaded end, said body
member including a riluid inlet and a ñuid outlet, a tapered
seat in said body member, .a rotary tapered valve member
resiliently held into engagement with said seat by means
of a coil spring engaging the lower end of said valve
member, said tapered valve member having a closed
lower end and an open top, and the interior of the tapered
valve member being hollow and the interior of the tapered
valve member communicating with the passageway in
said upstanding portion, said tapered valve member also
including a side wall portion having a slot therein, an
externally threaded skirt depending from said body mem
ber, said skirt having `a hollow interior which defines a
cylindrical bore that communicates with the lower end of
the valve seat, a sleeve threadedly engaging said skirt and
said sleeve including an upper shouldered portion, a sealing
element mounted in the upper portion of the sleeve, there
being a port in the intermediate portion of said sleeve,
a hollow vertically disposed tube extending through said
sleeve, and said tube also extending through the tapered
valve member and through the passageway in the upstand
ing portion of the body member, said tube lbeing ñxedly
secured to said tapered valve member, there being an
registry with the ñtting `23 instead of being in registry 35 aperture in said tube mounted for movement into and out
or alignment with the fitting 24. Thus, «with the parts
of registry with the ports in said sleeve, `a plug closing a
arranged as »shown in FIGURE 5, the water from the con
lower end of said tube, a handle connected to the bottom
duit 14 will enter through `the fitting 23 and then pass
portion of the tube, a fitting on the upper end of the tube,
in through the slot 33 and then pass upwardly through
a support member in said fitting provided with a vertically
the valve interior 31 and then pass upwardly through the 40 disposed passageway yand :an upper arcuate seat, and a
spring pressed ball valve mounted for movement into and
The spring S3 will normally urge the ball valve 52 into
out of opened and closed relation with respect to said
passageway 22 and this water will then enter the tank 16.
closed or bridging relation with respect to the valve seat
arcuate seat.
5-1. The tube 44 has the handle 47 a?ñxed thereto in any
suitable manner, and the tube 44 is suitably secured to
References Cited in the ñle of this patent
the valve member 29 so that as the ltube 44 is rotated by
UNITED STATES PATENTS
means of the handle l47 the valve member 29 will like
173,695
Varwig ______________ __ Feb. 15, 1876
wise be rotated. The spring 40 serves to urge or bias the
408,617
Hay _________________ __ Aug. 6, 1886
valve member 29 upwardly into snug engagement with the
y1,383,100
Green _______________ __ June 28, 1921
tapered valve seat 26.
50
2,018,853
Hitchcock ____________ __ Oct. 29, 1935
Suitable material can be used for making the various
2,107,704
Kronquest ____________ __ Feb. 8, 1938
parts, and the size and shape of the various elements can
2,448,206
Bailey ______________ __ Aug. 31, 1948
be changed or varied as desired or required.
2,770,402
Quam ______________ __ Nov. 13, 1956
While there has been described a preferred embodi
2,810,398
Carlson ______________ __ Oct. 22, 1957
ment of the in_vention and I have illustrated the same in the
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