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Патент USA US3088532

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May 7, 1963
Filed July 28, 1959
a: N
A frog/v5 7
United States Patent 0
Earl Fredrick Feilbach, Broadway, Washington
Township, NJ.
Filed July 28, 1959, Ser. No. 830,084
1 Claim. (Cl. 158-53)
Patented May 7, 1963
the handle has also served as one of the conduits for the
It is still a further object of this invention to provide an
improved liquid gas burner in which the assembly of the
burner is facilitated.
Many different types of jobs require different amounts
of heat. In such cases, it is desirable to have a universal
type burner adaptable to use combustion chambers of
This invention relates to liquid burners, and more par
various sizes.
ticularly, to vaporizing burners which use lique?ed butane 10
It is still a further object of this invention to provide
or propane gas.
an improved standard type liquid burner adapted to pro
Burners utilizing butane, propane and other types of
vide combustion chambers of different sizes.
liquid fuel which are readily vaporized into gas, are well
In accordance with the present invention, a butane or
known. In these types of burners, the liquid fuel is gen
propane liquid fuel burner includes a tapered shape
erally stored in suitable pressurized tanks. During opera 15 vaporizing chamber connected to a source of liquid fuel.
tion, the liquid fuel is vaporized into a combustible gas
A nozzle is disposed to project a ?ame adjacent the vapor
by applying heat. The heat and continued vaporization
izing chamber to heat the liquid fuel to transform it into
of the liquid fuel is maintained by the combustion of the
a combustible gas. An adjustable valve controls the gas
vaporized gas by a ?ame discharged from the nozzle of
?ow from a conduit of relatively large area to a conduit
20 of relatively small area, with the latter conduit ‘being
the burner.
A very high degree of constant heat is required in many
connected to the nozzle of the burner. The conduit of
applications using butane or propane gas burners. For
‘ relatively large area serves as a handle for the burner
example, one such application is in connection with heat
as well as a heat exchanger. A combustion chamber is
ing kettles which are used for melting tar, asphalt or the
adapted to be detachably mounted to the vaporizing
like for highway maintenance, paving, roo?ng and water
chamber and may be of various sizes. The entire ar
proof operations. In these, as well as other applications,
rangement of the burner is designed to facilitate easy
a projecting ?ame and heated gases are directed into an
assembly of the various parts.
immersed melting member embodying a longitudinally
Other objects and advantages of the present invention
extending ?ue near the bottom of the kettle and extend
will be apparent and such suggest themselves to ‘those
ing from end to end. The heating ?ue is designed to be 30 skilled in the art, from ‘a reading of the following speci
totally immersed in the molten material, with the burner
\ ?cation and claim in conjunction with the accompanying
being provided in connection therewith for introducing
drawing, in which:
the ?ame for heating. The con?guration of the burner is
FIGURE 1 is a longitudinal view, partly in cross sec
often of an odd size or shape and must be designed to
accommodate a particular type kettle or other container
tion and partly broken away, of a burner illustrating one
holding the material to be heated. In ‘designing such
burners, it is often necessary to have both the liquid and
FIGURE 2 is a view taken along lines 2—2 of FIG
URE 1.
Referring to the drawing, a burner 10 includes a
distributor block 12 connected to a source of liquid fuel
the vaporized gas travel relatively long distances through
conduits or pipes.
An undesirable feature found in many burners used
heretofore is the poor degree of control of the ?ow of the
gas into the burner nozzle. Among the reasons for this
poor cont-r01 in many cases is that the nozzle of the burner
has been directly connected to a large enclosure or con
duit with the vaporized gas passing into a large enclosure
or conduit from a relatively small enclosure or conduit
through a manipulatable valve. With the vaporized gas
passing from a relatively small conduit to a large conduit,
form of the present invention, and
(not shown) and a block 14 connected together by various
conduits, as will be described.
A cylindrical member 16 is welded or otherwise suit
ably attached to the block 14. An inner cylindrical
member 18, of irregular shape, is attached to the block
14 and to the cylindrical member 16 to form a vaporizing
. chamber 26. The vaporizing chamber 26 is dimensioned
to the size of apertures in the block 14 at one end and
gradually becoming wider in dimensions towards its
a ?ne degree of control of the flow of gas to the burner
50 center. As the vaporizing chamber further extends away
nozzle ‘was not practical.
from the block 14, it becomes narrower ‘and tapers to a
It is an object of this invention to provide a liquid gas " I. point where it is attached to the cylindrical member 16.
burner having an improved means for controlling the ?ow
of gas to the burner nozzle.
The irregular shape of the vaporizing chamber 26 formed
by the cylindrical member 16 and the member 18 pro
In some types of burners used ‘heretofore, the vaporiz 65 vides various advantages during burner operation, as will
ing chamber of the burner surrounded the projecting
be described.
?ame ‘and in effect actually became part of the combus
During burner operation, the liquid fuel passes through
tion chamber. This arrangement often resulted in burn
an opening 20 in the distributor block 12, through a con
duit 22, through an opening 24 in the block 14 and into
out of the vaporizing chamber due to carbonization of the
liquid fuel in the chamber.
60 the vaporizing chamber 26. The conduit 22 may be a
long tubular element welded or otherwise suitably at
It is a further object of this invention to provide an
tached to the distributor block 12 and the member or
improved gas burner using liquid fuel in which the likeli
hood of burnout of the vaporizing chamber due to car
block 14.
A nozzle 28 for projecting a ?ame is suitably mounted
bonization of the liquid fuel is minimized.
In many types of burners of odd sizes and shapes, es 65 to the block 14. When the liquid fuel enters into the
vaporizing chamber 26, it is heated and is quickly vapor
pecially those using long conduits or handles, the actual x? ized
into a combustible gas. The gas, being much larger
assembly of the burner during manufacture is often a
than the original liquid fuel, expands as it
problem. For example, the conduits must often be
becomes heated and escapes through an opening 30‘ into
welded to various distributor blocks and other elements
a relatively large chamber or heat exchange area 32.
associated with the burner. Often the conduits must be 70 The large chamber or heat exchange area is formed by
surrounded by a long protective handle. In some cases,
a pipe or tubing 34 and a slip ring or connector 36 con
nected between the distributor block 12 ‘and the block
14. As shown, the slip connector 36 is welded to the
tubing 34. The particular arrangement of the tubing 34
and the slip connector 36 facilitates the assembly of the
a problem. The arrangement of the tubing 34 and slip
connector 36 in the present invention helps to minimize
this problem. In assembling the burner shown, the tub
ing 34 and connector 36 may be held loosely surrounding
5 the inner conduits or tubings 22 and 42 while these con
burner, as will ‘be described.
duits are welded to the blocks 12 and 14‘. The freedom
The gas from the chamber 32 then passes through an
of movement of the tubing 36 up or down makes this
opening 38 in the distributor block 12 to an adjustable
possible. After the tubings 22 and 42 are welded in
valve 40. The valve 40 may be set to various positions
place, the top of the tubing 34 may be welded to the
to control the amout of gas ?owing from the opening
38 to a. conduit 42. The conduit 42 is suitably attached 10 block 12 and the bottom of the slip connector may be
welded to the block 14. The slip connector 36 may then
to the distributor ‘block 12 and the block 14 and provides
be welded to the tubing 34.
means for transferring the gas from the valve 40 tov an
Various other features facilitate the manufacture and
opening 44 in the block 14 which leads to the nozzle 28.
assembly of the burner shown. Spacer rings to provide
The block 14 includes a number of apertures 46 to
permit air to pass through the block 14 to support the 15 openings, such as 24 and 30, are not necessary because
the openings may be drilled with the exteriors of the
combustion of the gas during ‘burner operation. While
openings being plugged or welded, as illustrated by a
these apertures are shown as circular, as they would be
weld connection 56. The all welded construction of the
if they were drilled, it is obvious that one or any number
burner shown eliminates the need for ?eld adjustments
of openings of different sizes may be employed.
A cylindrical member 48 is detachably mounted to the 20 as the burner is actually a sealed unit. The use of weld
connections after drilling helps to avoid mechanical
member 16. The member 16 includes a ring 52 rigidly
closing after drilling and minimizes the danger of hazard
welded to its outer periphery having openings to permit
screws 52 to pass therethrough.
The member, num
ous gas leaks due to heat or thread burnout.
The arrangement involving the connection of the cylin
bered 48, forming the combustion chamber for the burner,
includes a ring 54 welded to its inner periphery. The 25 drical member 48 makes it possible to provide combus
tion chambers of various sizes with the same basic burner.
ring 54 includes tapped openings which are adapted to
receive the screws 52 to hold the member 48 attached
to the member 16.
In operation, the burner 10 may be considered as in
Thus a standard burner may be used and adapted to
jobs requiring different size combustion chambers.
It is apparent to those skilled in the art that various
The ?rst conduit includes the 30 modi?cations to the embodiment shown may be employed
without departing from the scope of the present inven
tubing 22 which leads the liquid fuel to the vaporizing
tion. For example, the main portion of the burner in
chamber 26. The second conduit includes the tubing 34
the member 16 and the member 48 are shown in
which leads the gas from the vaporizing chamber to the
direct line with the conduits. These members may be at
control valve 40. The third conduit includes the tubing
42 which leads the gas from the control valve 40 to the 35 right angles with respect to each other, or any other
desired angle, with respect to the conduits. Various dif
nozzle 28. A single control valve is preferred in the
ferent means may be employed to connect the member 48
present invention to eliminate any hazard of disconnect
to the member 16.
ing the burner with the main fuel supply on.
What is claimed is:
It is noted that an important feature of the present in
A burner comprising a block member having apertures
vention is that the conduit leading from the vaporizing
therein to permit the passage of air therethrough, a
chamber to the control valve is relatively large. This
vaporizing chamber connected to said block member, a
arrangement assures adequate area to permit full expan
conduit for connecting a source of liquid fuel to said
sion of the gas after the liquid fuel has been vaporized.
vaporizing chamber through said block member, a nozzle
The tendency of the fuel to remain in its liquid state to
45 centrally disposed on said block member and extending
cause faulty burner operation is thereby minimized.
towards said vaporizing chamber for projecting a ?ame
The relatively large heat exchange area provided by
to heat said liquid fuel to transform said liquid fuel into
the tubing 34 also makes it possible to provide microm
a combustible gas, said vaporizing chamber being tapered
eter adjustment of the control valve 40 in controlling
to be out of the direct path of said projecting ?ame, a
the amount of gas into the burner nozzle. Because the
gas ?ows from a relatively large area 32 into a relatively 50 distributor block, an adjustable valve for controlling gas
?ow included in said distributor block, a second conduit
small area of the tubing 42, this ?ne degree of control
of relatively large area for conducting said combustible
of gas ?ow is possible. In some of the burners used
cluding three conduits.
heretofore, the ?ow of gas was from a small to a large
area, making it impractical to provide adequate control
gas from said vaporizing chamber to said valve, a third
conduit of relatively small area with respect to said sec
of the gas ?ow. It is noted that the tubing 34 may also 55 ond conduit for conducting said combustible gas from
said valve to said nozzle, a slip connector, said second
serve as the handle for the burner. The tubing 34 may be
including a main tube member connected to said
considered as the main member.
slip connector, said second conduit and said slip connector
The irregular shape of the vaporizing chamber 26
surrounding said ?rst and third conduits, the main tube
formed by the members 16 and 18 help to prevent burn
out resulting from carbonization of the liquid fuel With 60 member being connected to said distributor block and the
slip connector being connected to said block member.
in the vaporizing chamber. The member 18 is tapered
as it extends away from the block 14. This arrange
References Cited in the ?le of this patent
ment keeps the vaporizing chamber substantially out of
the path of a projecting ?ame from the nozzle 28. Here
tofore in many cases, the ?ame from the nozzle was 6 a 1,460,630
Wiederwax ___________ __ July 3, 1923
within the vaporizing chamber area and often caused car
bonization and burnout of the vaporizing chamber asso- ,
Hymer _____________ __ Feb. 19, 1929
Sehylander ___________ __ Oct. 14, 1958
Switzerland __________ __ Apr. 16, 1937
ciated with the burner.
In burners involving a relatively large number of
Welded connections, the assembly of such burners is often .70.
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