US1789269A - Electric paint burner - Google Patents

Description

Jan. 13, 1931. c. H. BEACH 1,789,269

ELECTRIC PAINT BURNER Filed June 21, 1928 .L L -f$ g I [72 ifizntor: 5W 12 4 6 C71856T gefwlz,

Patented Jan. 13, 1931 UNITED STATES CHESTER H. BEACH, OI BACINE,

PATENT OFFICE ELECTRIC PAINT BURNER Application filed June 21,

This invention relates to electric paint burners.

The paint burner to which the invention applies in particular has a heater arranged in a portable casing and a handle for moving the casing over the surface to be burned.

An object of the invention is to provide an electric paint burner which is compact and eflicient.

Another object is to provide a paint burner from which the heater may bereadily and easily removed.

Another object is to provide a paint burner which is sturdy and durable.

Another object is to provide a paint burner which may be readily and economically manufactured.

According to the invention as ordinarily practised, a portable casing carried by a bandle has arranged therein a removable heater having a resistor embedded and enclosed within an insulating base, and the heater is held in place by bolts carried thereby and passing through the casing.

The invention is exemplified in the accompanying drawings in which the views are as follows: 1

Fig. 1 is an end view of a paint burner embodying the invention.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a view of the face of the paint burner with parts broken away to show certain details of construction.

Fig. 4 is a section on the line H of Fig. 2.

The paint burner comprises in general, a casing 1 having an open front, a handle 2 therefor, and an electric heater 3 removably carried by the frame.

The heater is provided with a refractory base 4, a resistor 5 arranged on the front thereof, and a heat conducting fac'e 6 arranged over the resistor.

The base may be of porcelain or other suitable material.

The resistor 5 has helical coils arranged on the front of the base and separated by parallel ridges or partitions 7.

I The partitions have recesses 8 in their ends through which the coils are connected in ser1es.

. source 0 1928. Serial No. 287,145.

The face. 6 is of a heat conducting and electrical insulating'composition, such as carborundum and a binder or other suitable substance of high thermal conductivity.

The insulating compositionris applied while in plastic form after the resistor is in place, and is then dried to form a permanent face integral with the base and-embedding the resistor.

The resistor is thus protected from being broken by contact with extraneous objects and from excessive oxidation by exposure to the air.

The face 6 conducts the heat away from the resistor rapidly to prevent overheating,

and it provides a large radiatingsurface for the heater.

The resistor is connected in circuit by terminal bolts 9 which are fastened in the base 4 and secure the heater-3 in position within the casing 1.

The resistor coils are connected to the terminal bolts by wires 10.

The casinglhasa metal outer shell 11 which is open at its front to receive the heater 3 and provided with a lining 12 of insulating material, such as asbestos or magnesia, to space the heater 3 from the shell 11.

The casing 1 has its ends extended downward beyond the heater 3 to form guides 13 for enga ing the surface to be burned and spacing t e heater 3 a predetermined distance therefrom.

An insulating plate 14 is arranged on the top of the shell 11, and the terminal bolts 9 are secured thereto by binding screws 15 to hold the heater in the casing.

The handle 2 is fastened to the frame by a bracket 16 arranged on the insulating plate.

Electrical conductors 17 attached to the terminal bolts by the screws 15 extend through the handle and terminate in a connecting plug'18 to connect the resistor to a electrical energy.

The paint burner set forth herein is susceptible of various modifications without departing from the scope of the invention as hereafter claimed.

The invention is hereby claimed as follows:

' 1. A paint burner, comprising a portable casing having an open front and gmdes to engage the surface to'be heated, a handle carrying said casing and connected to the back thereof, a removable insulating base arranged within sa1d casing, a resistor carried by said base u on the front thereof, a

heat conducting su stance embedding said resistor and forming a heat radiating face, and bolts arranged upon the backof said base and passing throughsaid casing to hold said base in place.

2. A paint burner, comprising a portable casing having an open front and guides to engage the surface to be heated, a handle carrying said casing and connected to the back thereof, a removable insulating base arranged within said casing and having parallel grooves upon the front thereof, resistors arranged in said grooves, a heat conducting substance embedding said resistors and forming a heat radiatin face and bolts arranged upon the back 0 said base and passing through said casing to hold said base in place and connect said resistors in circuit.

3. A paint bur er, comprising a portable casing having an7open front and guides to engage the surface to be heated, a handle carrying said casing and connected to the back thereof, a removable insulating base arranged withm said casing and havm paral lel grooves u on the front thereof, a eat inarranged between said handle sulating bloc and said casing, resistors arranged in said grooves, a heat conducting substance embedding said resistors and formin a heat radiating face, and bolts arrange upon the back of said base and passing through said casing to hold said base in place and connect said'resistorsin circuit. 1

In witness whereof, I have hereunto subscribed my name.

' CHESTER. H. BEACH.

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