вход по аккаунту


Патент USA US3022870

код для вставки
Feb. 27, 1962 -
Filed Des.v 2, 1957
2 Sheets-Sheet 1
Feb. 27, 1962
c, c, BrrTNER
Filed Dec. 2, 1957
2 Sheets-Sheet 2
2o .,
way; u
Patented Feh.-27, 1962
for presetting the vent for the desired rate of airventing
1 Claim. (ill. 183-41)
With these and other objects in view which will be
come ‘more apparent as the description proceeds, this
invention comprises the novel structure and combina
tions of parts hereinafter described and more particularly
pointed out and de?ned in the appended claim.
and ‘sealing the same at the desired rate.
Charles C. Bittner, 4122 N. Ashland Ave, Chicago, ill.
Fiied Dec. 2, 1957, Ser. No. 7%,120
This invention relates to an air vent device for steam
heating systems, preferably attached to steam radiators
In the accompanying drawing which illustrates the
and steam return lines and concerns itself primarily with
preferred form of this invention and in which similar
means for releasing air from the system and keeping the 10 reference numerals refer to similar features in the differ
air out for maintaining proper circulation of the steam
ent views:
thru the system thru ?ltering means for separating for
FIG. 1 is an elevational view of an air vent device in
eign matter from the ?uid entering the device and protect
volving this invention,
ing the valve mechanism which controls the air vent
FIG. 2 is an elevational View of the air vent device in
from harmful sludge and crystalloid deposits and against 15 disassembled form,
lack of proper performance.
FIG. 3 is a longitudinal view in section thru the air
More particularly, the invention concerns itself pri
vent device,
marily with an air vent device for radiators in which a
.FIG. 4 is an elevational view of the air vent device
?ne mesh ?lter is incorporated for ?ltering out all foreign
connected to a radiator shown partly in section, and
matter such as sludge from the air and steam entering the 20
FIG. 5 is a perspective view of a support member in
device from the radiator or heating system and causing
the air vent device for supporting the ?oat valve and
such foreign matter to be deposited in a sluge well in
cartridge ?lter.
the bottom of the device for discharge back to the radiator
In referring now to the drawing, there is shown in
or other suitable place. Thus, the invention seeks to
FlGS. l to 4 an air vent device consisting of a casing C
keep the vent valve and other parts of the device in
comprising an upper or vent section 1 and a lower or
proper functioning condition and free from dirt and , adapter section 2. having a threaded pipe nipple ‘3 which
is adapted for connection to a radiator section 15. While
At the present time, there are two types of air vent
the casing C is shown in two sections for convenience
valves in use, one is termed the open type which lets the
of assembling the parts, it may be made in one piece if
air out of the system when the boiler generates steam 30 desired. The lower part of the casing C or the adapter
and lets the air in when the steam condenses, but which
1 section 2 has a sludge well 4A ‘at the nipple 3. A plug
does not operate e?‘iciently, especially under thermosta ic
4!- in the bottom of the adapter section 2 closes an outlet '
control using on and off ?ring. In the use of this type
opening to this Well. The plug 4 can be removed and a
of valve, the system is loaded with air when the boiler
drain pipe substituted as will later appear.
sends forth steam and the steam will not travel thru 35
The air vent section 1 of the casing has an air vent
pipe lines as long as there is air to hold it back. So the
or hole 13 in its top and a lower port 13A for the escape
air must ?rst be ejected from the system by the force
of any condensate that may ?nd its way between the
of the steam. This requires time since there is only a
wall of the casing and the bellows B. The section 1 has
needle point opening in the vent and as a result, a
a drip extension 7 with a port 8 at the lower terminal.
40 This extension 7 is designed to carry downward or cause
The other type of air vent valve is the vacuum type - to drip any condensate that might creep up the surface
which lets the air out during steam pressure, but does
of the casing, into the well 4A. The vent section 1 has
not let the air in when the steam condenses. As now
its lower end portion reduced and threaded as indicated
constructed, the vacuum valves must require much higher
at 12 for connection to'the adapter section 2. The drip
steam pressure and must be periodically removed to
45 extension 7 is likewise of reduced diameter. This re
drain out the water and dirt, otherwise they become
duced portion has an interior rib 11 which forms a lateral
clogged up with sludge, crystalloid deposits and water.
support ‘for a ?lter 5 which preferably consists of ?ne
Installations have been made with vacuum valves where
mesh wire, but which may be made of any suitable ?lter
throttling of the steam occurs.
minutes later, the valves would get clogged upv and sput
ter dirty water which would damage articles in the sur
rounding area.
It is an object of this invention to overcome the above
ing material. _
The ?lter 5 is tubular and has its ends closed by similar
?ne mesh wire pieces 6. The upper end of the ?lter is
secured to the bottom part of a support member 9 which
noted objections in air vent devices in the provision of
is frictionally held in the section 1 by ?anges 9B, the ?lter
?ltering means which protect the vent valves from harm
5 being held by downwardly directed ?anges or clamps
ful foreign matter which clogs up the vent mechanisms 55 10 on the support member 9. It will be noted that the
with water and causes faulty action.
it is also an object of this invention to maintain the
vent device in an endurabie condition to perform properly
to obtain satisfactory circulation of steam in one pipe
rib 1?. also serves to space the ?lter from the wall of
the section 1 of the casing and the wall of the reduced
portion spaces the ?lter from the wall of the section 2.
Thus the filter is well exposed to incoming ?uids such
steam systems.
as air and steam which pass mainly thru apertures 9C
it is a further object of this invention to apply the 60 in the support member 9.
?ltering means to vent devices controlled by either the
The air vent section 1 houses a valve mechanism which
open type of valve or the vacuum type of valve or other
in the present instance is shown as of the vacuum type,
types of valves.
but which may be of any other suitable type. This valve
It is also an object of this invention to prevent sludge,
mechanism is designed for controlling the ?ow of air
foreign matter and water from entering the vent and 65 thru the air vent hole 13 and comprises a bellows B having
valve compartment and forming crystalloid deposits on
its upper end closed except for an air passage Bl extend
the valve mechanism such as the seating and operating
ing thru the neck B2, with its lower end open. This lower
end has an annular exterior ?ange B3 which extends
it is a further object of this invention to drain the
under the lower edge of section 1 or at the welded junc
sludge and water and foreign matter from the vent device.
ture of the upper part '1 and the threaded portion 12.
It is a further object of this invention to provide means
It will be noted that the neck B2 extends toward the
neck containing the vent hole 13 on casing section 1
for the'passage of air to and from the device. The upper
engaging the outer surface of the ?lter 5. The plate 9 is
part of the bellows is expansible as indicated at B4 while
thru the apertures 9C therein. From the foregoing, it
will be apparent that the ?lter protects the valve mecha
ism ‘from becoming clogged up by sludge or foreign
matter and results in a proper functioning of the valve
the lower portion B5 is rigid and anchored by the annular
?ange B3. Within the bellows B, there is a valve V
which has an enlarged hollow portion V1 at its base
which is seated upon the support member 9 between the
upstanding ?anges ‘EA thereof (FIG. 5). The enlarged
portion V1 which is slightly spaced from the wall of the
formed to allow venting air or ?uid to pass around it and
It will now be appreciated that this invention will ma
terially improve the operation of steam systems using one
bellows for the passage of air and steam supports a 10 pipe systems with vacuum valves. And that it can also
be used with the two pipe systems where it is applicable.
needle valve V2 which has a point V4 which extends
The importance of the invention exists in maintaining
into the neck B2 of the bellows for controlling the air
proper circulation of steam and maintaining heat in steam
passage B1. As the upper portion B4 of the bellows
radiators for longer durations.
expands and contracts thru pressure, the needle valve will
In addition, it should also be appreciated that this in
control the flow of air and steam thru the vents 13. The 15
vention provides the means for remedying defective steam
bellows and valve constitute a valve mechanism that is
heating systems now in use that fail to function properly
well known in the art and forms no part of this invention
in that it prevents the clogging up of air vent valves and
except in so far as it may co-operate therewith.
maintains steady and good circulation of steam. Further,
In E16. 4, the air vent device is shown connected to
a radiator section 15 shown partly in section. It will be 20 it saves fuel which is an economical factor and reduces
fuel dirt and maintenance.
noted that the nipple 3 is connected to the radiator so
I am aware that many changes may be made and vari
that about 1/4 of an inch thereof protrudes beyond the
ous details of structure may be modi?ed without depart
inner wall surface of the radiator in order to reduce
' ing from the principles ofwthis invention, so 1 do not
the ejection of condensate and foreign matter which may
propose limiting the patent granted otherwise than neces
have accumulated upon the Wall of the radiator. The
sitated by the appended claim.
plug 4 has been removed and a drain pipe 111 has been
substituted therefor. This drain pipe 1.4 connects in
In an air vent device for steam radiators, a casing hav
union with a short pipe 14A which connects with the
ing an upper section with an air vent adjacent the upper
radiator section 15 below the nipple 3 for discharging
end of said section, valve mechanism in said casing for
sludge ‘and condensate into the radiator as indicated at
controlling said air vent, said upper section having a
17. Thus when in use, air and steam which may be
lower drip extension of reduced diameter, said drip ex
termed fluids, enter the device thru nipple 3 and pass
_ tension having a port for preventing the Strati?cation of
thru ?lter 5 where sludge and all foreign matter will
air and a lower section removably attached to said upper
?lter out and fall into the well 4A from where it will
vdescend thru pipes 14 and 14A to the‘ radiator or any 35 section and extending over said reduced drip extension,
a screening ?lter attached within said upper section and
suitable place. As a result, the vent valve will not be
extending substantially two thirds of its length into the
come clogged up or function improperly and impair the
lower section, a nipple extending from said lower section
circulation of the steam. From the ?lter, the clean air
adapted for attachment to a radiator and means ‘for drain
and steam will pass thru the apertures in the plate 9 and
exert pressure against the valve V ‘and also pass between 40 ing sludge from said lower section.
the wall of the bellows and the valve to‘the outlet 13.
References Cited in the file of this patent
FIG. 4 also shows the flow of ?uid to the nipple 3 at
its ends secured in a. lead seal 20. The diameter of the
wire 19 should be of a particular dimension to leave an
escape for air thru the vent hole 13 in accordance with
the desired rate of venting. Accordingly, the air vent
ing thru the vent hole can be rated in accordance with 50
the diameter of the wire 19 which canbe changed as
16 and the escape of air thru air vent 1-3 by the arrow 18
along the side of the wire 19 which extends thru the
vent hole 13 and around portions of the radiator with
Hilliard ______________ -._ Mar. 1, 1910
Kelsey _______________ __ Ian. 9, 1912
Keynton ____________ __ Jan. 16, 1917
Dougherty ____ __' _____ __ June 1, 1926
Ostrander ____________ __ July 26, 1927
Donnelly ________ _2____ June 24, 1930
Campbell ____________ .._ Mar. 1, 1932
Kettnich _______ a. ____ __ Dec. 7, 1937
desired by selecting wires of different diameters.
The supporting member for the valve and ?lter 5 is
shown‘in FIG. 5 and consists of the plate 9 provided
with ?anges 9B for securing to the wall of the casing
thru a soldered bond. This plate 9 has upstanding ?anges
Barton et al. ___~ ______ .._ Sept. 25, 1945
Diederich ____________ __ June 10, 1952
Shaw _______________ __ Feb. 16, 1954
9A which form a seat therebetween for the base of the
?oat valve V and downwardly directed ?anges 10‘ for
Great Britain __________ .._ Oct. 5, 1895
Без категории
Размер файла
428 Кб
Пожаловаться на содержимое документа