US3094606A - Electric paint removing device - Google Patents

Electric paint removing device Download PDF

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US3094606A
US3094606A US770328A US77032858A US3094606A US 3094606 A US3094606 A US 3094606A US 770328 A US770328 A US 770328A US 77032858 A US77032858 A US 77032858A US 3094606 A US3094606 A US 3094606A
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air
tube
inlet openings
casing
paint
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US770328A
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Edwin W Ferris
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
    • B44D3/166—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning by heating, e.g. by burning
    • B44D3/168—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning by heating, e.g. by burning by electrically heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0423—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between hand-held air guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0052—Details for air heaters
    • F24H9/0057—Guiding means
    • F24H9/0063—Guiding means in air channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means

Definitions

  • Softening of old paint tilms is a well-known practice. It is usually accomplished by either -solvents or burning. This latter term meanssoftening with heat but often or usu-allyis accomplished by actual burning of the paint and the surface thereunder if it is combustible. Blow torches or other llame devices are most commonly used and these have been known -to burn down houses. More recently electrical devices utilizing radiant heat or direct contact electric irons have been used. These devices do operate Ibut only slowly and have thus not been generally utilized by professional painters.
  • FIG. 1 is a side view, largely in section, showing the device of the present invention.
  • FIG. 2 is a cross-sectional view .taken on the lines 2-2 of FIG. 1.
  • FIG. 3 is a cross-sectional view taken on 'the lines 3 3 of FIG. 1.
  • FIG. 4 is a segmental cross-sectional view ⁇ taken on the lines 4--4 of FIG. 1.
  • FIG. 5 is a top plan view, partially cut away, of the device of FIG. 1.
  • FIG. 6 is a cross-sectional View taken on the lines 6--6 of FIG. l.
  • FIG. 7 is a side view, largely in section, of an alternative to the device in FIG. 1.
  • FIG. 8 is a cross-sectional View taken on the lines 8 8 of FIG. 7.
  • the device is a gunelike device with a handle 10', a yfan housing 11 and a barrel 12.
  • the barrel 12 has an inner wall 13, preferably of metal, forming a jacket which is adapted to permit the passage of cooling air from the fan housing 11 to the atmosphere.
  • a removable heater element unit comprising a cylindrical ceramic core 15 about which is wound resistance wire 16.
  • the core 15 terminates at the inner end by a disk 17 of ceramic or the like.
  • Disk 17 contains a plurality of air holes 18 and, as will be seen in IFIG. 4, it has bayonet electrical connectors 19 so that the core may be removed and reinserted or replaced easily.
  • IFIG. 4 Disk 17 contains a plurality of air holes 18 and, as will be seen in IFIG. 4, it has bayonet electrical connectors 19 so that the core may be removed and reinserted or replaced easily.
  • ⁇ core 15 terminates with an open mouth 20 which is shown to be round but which may take -other shapes and which may :bell out and be larger than the core.
  • Core 15 also 3,094,606 Patented JuneA 1S, 1963 has a large number of holes 21 therein so that cool air from the fan housing which is adapted to pass outside the core and be heated by wire 16 may then pass inwardly through the core wall to the inner chamber and out of the mouth.
  • Barrel 12 is provided, adjacent its forward end, with circumferentially spaced outlet openings 2S.
  • core plate 23 which holds a second coil 24 ofresistance wire.
  • This is a flat plate which divides the interior of core 15 into two equal compartments lengthwise. Both coils 16 and 24 are connected in parallel @through the bayonet connections as shown.
  • the inner coils Athe conveying air from the fan housing may .pass through holes 18 in disk 17 and the heated air out of the mouth 20. F or best operation, however, the holes 18 need not be open but only the outer holes used.
  • motor 26 which is a small motor operating on household current. It may have air cooling ⁇ openings in its casing, not shown. Fan 27 may be any of a number of types but as illustrated is a drum type ⁇ with air entering and leaving as shown at FIG. 5.
  • Control of the air flow is desirable and as illustrated at FIGS. l and 6 the control is an annular ring 28 having a lever 29 and arranged to be friction held between disk 17 and base 30.
  • Base 30 is a ceramic or the like circular piece adapted to receive the hayonets and contains terminals 31 from which the electrical connections go to a switch 32, not shown in detail.
  • Ring 28 contains a plurality of holes arranged in three circumferences. At any position of the lever 29 air will pass to the outer jacket of the device by reason of the large number of holes in the outer circumference of ring 28. However, movement of the lever 29 can cut down or increase the air passing over the heating elements which are reached by the two inner rows of holes.
  • FIGS. 7 and 8 show an alternative device.
  • the barrel 12 is preferably of asbestos and is not continuous with the fan housing which may be of metal.
  • the fan housing which may be of metal.
  • base 30 in this case is very thick and may be of ceramic, asbestos composition or the like, non-heat-conducting material. No air control is shown but it may be included. It will be seen .that in this alternative device insulation is relied upon rather than an air-cooled barrel to than an lair-cooled barrel to keep them otor and handle section cool.
  • the present invention features a very limited flow of air over electric heating elements of large heating ability to yield a flow of air at a low speed and a high temperature. Further, there is some method of keeping the motor and especially the handle at a low temperature.
  • the device softens paint for easy removal in a manner not heretofore obtainable. It not only quickly softens the paint so that it can ybe rapidly and completely removed but there is no charring of the Wood, which would require subsequent sanding. Further, a painter can work rapidly without burning his hand with the pieces of removed paint.
  • the air temperature at the mouth of the device should be in the range 500 to 1300 degrees F.
  • the device is preferably wired for volts and has a heater element of 1300 watts.
  • the air low from the fan should preferably be adjustable so that the heat at the mouth can be controlled and so the whole device can be cooled after the heater is shut off.
  • various wattage elements as well as various sizes and shapes of mouths can be easily attached.
  • the air passed over the heating unit is preferably in the range l to 10 cu. ft. per 1000 watts of heating element.
  • a paint softening device comprising: i (a) la casing having an air inlet and an air outlet;
  • the aggregate area of Ithe air inlet openings of said rstnamed tube being substantially less than the agg-regate rea of fthe air inlet openings of said second-named tube, such that a larger volume of air may be forced by said fan through said second-named tube than through said first-named tube;
  • (f) means disposed intermediate said air outlet of the* casing and the inlet openings of said tubes for controlling the flow of air through said tubes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Description

June 18, 1963 E. w. FERRls ELECTRIC PAINT REMovING DEVICE 2 Sheets-Sheet 1 Filed OCT.. 29, 1958 INVENTOR 9W/N /7/ @fee/s June l18, 1963 E. w. FERRIS 3,094,605
ELECTRIC PAINT REMOVING DEVICE Filed Oct. 29, 1958 Tlq. I
2 Sheets-Sheet 2 INVENTOR 50M/v h/ FE/P/s Mgg `United, States Patent O 3,094,606 ELECTRIC PAINT REMOVING DEVICE Edwin W. Ferris, 46 Lexington Ave., Greenwich, Conn. Filed Oct. 29, 1958, Ser. No. 770,328 2 Claims. (Cl. 219-39) l'lhe present invention relates to an electric paint removing device Iand more particularly to an electric device adapted to soften and loosen dried paint films, thus facilitating their removal from the painted surface.
Softening of old paint tilms is a well-known practice. It is usually accomplished by either -solvents or burning. This latter term meanssoftening with heat but often or usu-allyis accomplished by actual burning of the paint and the surface thereunder if it is combustible. Blow torches or other llame devices are most commonly used and these have been known -to burn down houses. More recently electrical devices utilizing radiant heat or direct contact electric irons have been used. These devices do operate Ibut only slowly and have thus not been generally utilized by professional painters.
It is an object of the present invention to provide an improved electric paint removing device.
It is a further object of the present invention to provide an improved electric paint removing device which will ladequately remove paint without burning the surface under the paint.
It is a further object of the present invention to provide an improved electric paint remow'ng device which will adequately remove paint without burning the surface under the paint and which will operate on regular household current.
These and other objects are atained by the present invention, which may be best understood by reference to preferred embodiments shown in the drawings, but it will be understood that variations and substitutions may be made within the scope of the claims.
In the drawings:
FIG. 1 is a side view, largely in section, showing the device of the present invention.
FIG. 2 is a cross-sectional view .taken on the lines 2-2 of FIG. 1.
FIG. 3 is a cross-sectional view taken on 'the lines 3 3 of FIG. 1.
FIG. 4 is a segmental cross-sectional view `taken on the lines 4--4 of FIG. 1.
FIG. 5 is a top plan view, partially cut away, of the device of FIG. 1.
FIG. 6 is a cross-sectional View taken on the lines 6--6 of FIG. l.
FIG. 7 is a side view, largely in section, of an alternative to the device in FIG. 1.
FIG. 8 is a cross-sectional View taken on the lines 8 8 of FIG. 7.
yWith reference -to FIG. l, it will be seen that the device is a gunelike device with a handle 10', a yfan housing 11 and a barrel 12. The barrel 12 has an inner wall 13, preferably of metal, forming a jacket which is adapted to permit the passage of cooling air from the fan housing 11 to the atmosphere. Within the inner wall 113 is a removable heater element unit comprising a cylindrical ceramic core 15 about which is wound resistance wire 16. The core 15 terminates at the inner end by a disk 17 of ceramic or the like. Disk 17 contains a plurality of air holes 18 and, as will be seen in IFIG. 4, it has bayonet electrical connectors 19 so that the core may be removed and reinserted or replaced easily. At its outer end,
` core 15 terminates with an open mouth 20 which is shown to be round but which may take -other shapes and which may :bell out and be larger than the core. Core 15 also 3,094,606 Patented JuneA 1S, 1963 has a large number of holes 21 therein so that cool air from the fan housing which is adapted to pass outside the core and be heated by wire 16 may then pass inwardly through the core wall to the inner chamber and out of the mouth. Barrel 12 is provided, adjacent its forward end, with circumferentially spaced outlet openings 2S.
Within core 15 is a core plate 23 which holds a second coil 24 ofresistance wire. This is a flat plate which divides the interior of core 15 into two equal compartments lengthwise. Both coils 16 and 24 are connected in parallel @through the bayonet connections as shown. In the case of the inner coils Athe conveying air from the fan housing may .pass through holes 18 in disk 17 and the heated air out of the mouth 20. F or best operation, however, the holes 18 need not be open but only the outer holes used.
Referring to lFlG. 5, there is shown motor 26 which is a small motor operating on household current. It may have air cooling `openings in its casing, not shown. Fan 27 may be any of a number of types but as illustrated is a drum type `with air entering and leaving as shown at FIG. 5.
Control of the air flow is desirable and as illustrated at FIGS. l and 6 the control is an annular ring 28 having a lever 29 and arranged to be friction held between disk 17 and base 30. Base 30 is a ceramic or the like circular piece adapted to receive the hayonets and contains terminals 31 from which the electrical connections go to a switch 32, not shown in detail. Ring 28 contains a plurality of holes arranged in three circumferences. At any position of the lever 29 air will pass to the outer jacket of the device by reason of the large number of holes in the outer circumference of ring 28. However, movement of the lever 29 can cut down or increase the air passing over the heating elements which are reached by the two inner rows of holes.
1FIGS. 7 and 8 show an alternative device. Here the barrel 12 is preferably of asbestos and is not continuous with the fan housing which may be of metal. In this alternative there is shown only one heating element mouned on a core plate 23, which is removable, but two elements could be used. Besides the asbestos barrel, base 30 in this case is very thick and may be of ceramic, asbestos composition or the like, non-heat-conducting material. No air control is shown but it may be included. It will be seen .that in this alternative device insulation is relied upon rather than an air-cooled barrel to than an lair-cooled barrel to keep them otor and handle section cool.
It will be seen that the present invention features a very limited flow of air over electric heating elements of large heating ability to yield a flow of air at a low speed and a high temperature. Further, there is some method of keeping the motor and especially the handle at a low temperature. The device softens paint for easy removal in a manner not heretofore obtainable. It not only quickly softens the paint so that it can ybe rapidly and completely removed but there is no charring of the Wood, which would require subsequent sanding. Further, a painter can work rapidly without burning his hand with the pieces of removed paint. The air temperature at the mouth of the device should be in the range 500 to 1300 degrees F.
For use on household current the device is preferably wired for volts and has a heater element of 1300 watts. The air low from the fan should preferably be adjustable so that the heat at the mouth can be controlled and so the whole device can be cooled after the heater is shut off. Preferably also various wattage elements as well as various sizes and shapes of mouths can be easily attached.
The air passed over the heating unit is preferably in the range l to 10 cu. ft. per 1000 watts of heating element.
3 What I claim is: 1. A paint softening device comprising: i (a) la casing having an air inlet and an air outlet;
(b) a tube having air inlet openings at one end there-` of and an air outlet opening at i-ts opposite end;
(c) a second tube concentrically surrounding said firstnamed tube in spaced relation thereto and having air inlet openings at one iend thereof and Ian air outlet opening at its 'opposite end;
said inlet openings of said tubes communicating vwith said air outlet ofthe casing;
(d) a high temperature electric heating element disposed within sm'd iirst-named tube;
(e) a fan in said casing for forcing air through its said outlet;
the aggregate area of Ithe air inlet openings of said rstnamed tube being substantially less than the agg-regate rea of fthe air inlet openings of said second-named tube, such that a larger volume of air may be forced by said fan through said second-named tube than through said first-named tube; and
(f) means disposed intermediate said air outlet of the* casing and the inlet openings of said tubes for controlling the flow of air through said tubes.
2. A paint softening device as defined in claim 1, wherein said inlet openings and said flow control means are arranged to permit the outer surface yof said secondnamed tube to be maintained at a temperature low enough to be held in the hand while Ithe air owing through said rst-named tube is heated by said heating element to a temperature in the range of 500 to 1300 F.
References Cited in the file of this patent UNITED STATES PATENTS 1,493,158 Miller May 6, 1924 1,668,417 McConnell May 1, 1928 1,955,240 Kenney 1 Apr. 17, 1934 `1,977,151 Schottky Oct. 16, 1934 2,027,605 McCord et al; Jan. 14, 1936 2,031,391 Spielman- Feb. 18, 1936 2,042,264 Levenhagen 'May 26, 1936 2,049,812 IDoacker Aug.v 4, 1936 2,114,494 Hummel et al Apr. 19, 1938 FOREIGN PATENTS 803,329 Great Britain Oct. 22, 1958

Claims (1)

1. A PAINT SOFTENING DEVICE COMPRISING: (A) A CASING HAVING AN AIR INLET AND AN AIR OUTLET; (B) A TUBE HAVING AIR INLET OPENINGS AT ONE END THEREOF AND AN AIR OUTLET OPENING AT ITS OPPOSITE END; (C) A SECOND TUBE CONCENTRICALLY SURROUNDING SAID FIRSTNAMED TUBE IN SPACED RELATION THERETO AND HAVING AIR INLET OPENINGS AT ONE END THEREOF AND AN AIR OUTLET OPENING AT ITS OPPOSITE END; SAID INLET OPENINGS OF SAID TUBES COMMUNICATING WITH SAID AIR OUTLET OF THE CASING; (D) A HIGH TEMPERATURE ELECTRIC HEATING ELEMENT DISPOSED WITHIN SAID FIRST-NAMED TUBE; (E) A FAN IN SAID CASING FOR FORCING AIR THROUGH ITS SAID OUTLET; THE AGGREGATE AREA OF THE AIR INLET OPENINGS OF SAID FIRSTNAMED TUBE BEING SUBSTANTIALLY LESS THAN THE AGGREGATE AREA OF THE AIR INLET OPENINGS OF SAID SECOND-NAMED TUBE, SUCH THAT A LARGER VOLUME OF AIR MAY BE FORCED BY SAID FAN THROUGH SAID SECOND-NAMED TUBE THAN THROUGH SAID FIRST-NAMED TUBE; AND (F) MEANS DISPOSED INTERMEDIATE SAID AIR OUTLET OF THE CASING AND THE INLET OPENINGS OF SAID TUBES FOR CONTROLLING THE FLOW OF AIR THROUGH SAID TUBES.
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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371188A (en) * 1965-08-25 1968-02-27 Henes Mfg Company Inc Electrically heated torch for elevating the temperature and directing the flow of a gas
US3404257A (en) * 1965-09-29 1968-10-01 Fmc Corp Air-heating system for heat-sealing containers
US3492462A (en) * 1966-10-03 1970-01-27 Fred E Schumacher Heat gun
US3610881A (en) * 1968-07-29 1971-10-05 Trigg Stewart Portable electric air-heating gun and oven
US3654431A (en) * 1970-08-19 1972-04-04 Sylvania Electric Prod Bunsen burner simulating flameless electric heater
US3783236A (en) * 1973-03-02 1974-01-01 Gte Sylvania Inc Electrically operated steam heater
US3846618A (en) * 1972-03-09 1974-11-05 Air Knife Inc Electric heating apparatus for removing textile waste material
WO1983002753A1 (en) * 1982-02-12 1983-08-18 Skarsten, Stephen, Randolph Heated gas blower device
US4471213A (en) * 1981-06-23 1984-09-11 Matsushita Electric Works, Ltd. Uniform airstream distribution hair dryer
EP0125109A2 (en) * 1983-05-05 1984-11-14 Black & Decker Inc. Guard for a hot air gun
EP0170974A2 (en) * 1984-08-08 1986-02-12 Wagner Spray Tech Corporation Hand held hot air blower
US4636617A (en) * 1984-08-08 1987-01-13 Wagner Spray Tech Corporation Heating coil assembly for a heavy duty hot air blower
US4683370A (en) * 1984-08-08 1987-07-28 Wagner Spray Tech Corporation Hot air gun with air directing housing
US4685389A (en) * 1985-01-25 1987-08-11 Measurex Corporation Hot air calender roll controller
US4698485A (en) * 1985-08-06 1987-10-06 Pace Incorporated Heater device
US4738196A (en) * 1985-01-28 1988-04-19 Measurex Corporation Air heater for a calender roll diameter controller
US5111527A (en) * 1990-03-12 1992-05-05 Gte Products Corporation Electric heater with thermistor temperature control
USRE34018E (en) * 1984-08-08 1992-08-04 Wagner Spray Tech Corporation Heating coil assembly
US5303325A (en) * 1992-10-13 1994-04-12 Abbott Laboratories Air heater
US5671321A (en) * 1996-04-24 1997-09-23 Bagnuolo; Donald J. Air heater gun for joint compound with fan-shaped attachment
US6035097A (en) * 1996-08-26 2000-03-07 Braun Gmbh Electrical heating unit with two concentrically disposed heating elements
US6370326B2 (en) * 2000-06-01 2002-04-09 Chuan-Hsin Cheng Safety hot air blowing gun
WO2007008130A1 (en) * 2005-07-12 2007-01-18 Looft Industries Ab Handheld device for fast electrical ignition of a charcoal grill
US20070145038A1 (en) * 2003-01-07 2007-06-28 Micropyretics Heaters International, Inc. Convective heating system for industrial applications
US20080056692A1 (en) * 2006-04-25 2008-03-06 Tsun-Wan Yeh Heating device
US20090271945A1 (en) * 2008-05-05 2009-11-05 Ludwigson Lanny J Air blower
US20140110398A1 (en) * 2012-10-24 2014-04-24 Tokyo Electron Limited Heater apparatus
CN104287408A (en) * 2013-07-16 2015-01-21 戴森技术有限公司 Heater for a hand held appliance
CN104757768A (en) * 2014-01-06 2015-07-08 日本电产株式会社 Dryer
US20160201945A1 (en) * 2015-01-14 2016-07-14 Zhejiang Prulde Electric Appliance Co., Ltd. Multifunction hot air heating gun
US9512959B2 (en) 2013-07-19 2016-12-06 Dyson Technology Limited Motor mount
WO2017160215A1 (en) * 2016-03-15 2017-09-21 Looft Industries Ab Handheld portable hot air device
US10080414B2 (en) 2015-01-15 2018-09-25 Dyson Technology Limited Motor mount
WO2018172280A1 (en) * 2017-03-20 2018-09-27 Schulte Goebel Christof Method for heating a medium
US10441050B2 (en) 2015-10-21 2019-10-15 Dyson Technology Limited Hand held appliance
US11918854B2 (en) 2013-02-01 2024-03-05 Nike, Inc. System and method for analyzing athletic activity

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US1493158A (en) * 1921-02-19 1924-05-06 Frank W Miller Heating apparatus
US1668417A (en) * 1927-04-28 1928-05-01 Mcconnell Samuel Mason Heating apparatus
US1955240A (en) * 1930-12-05 1934-04-17 Edward F Woods Apparatus for removing paint
US1977151A (en) * 1930-09-26 1934-10-16 Schottky Walter Electric fire lighting apparatus
US2027605A (en) * 1932-01-20 1936-01-14 Mccord Radiator & Mfg Co Portable electric drier
US2031391A (en) * 1935-02-18 1936-02-18 Black & Decker Electric Compan Heat gun
US2042264A (en) * 1935-02-12 1936-05-26 Alexander F Levenhagen Hot air gun
US2049812A (en) * 1932-08-29 1936-08-04 Loacker Albert Device for drying containers internally
US2114494A (en) * 1935-08-12 1938-04-19 Mildred E Hummel Insect extermination
GB803329A (en) * 1955-10-13 1958-10-22 Patrick Clement Cox Improvements in, or relating to, portable electrical heating appliances

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1493158A (en) * 1921-02-19 1924-05-06 Frank W Miller Heating apparatus
US1668417A (en) * 1927-04-28 1928-05-01 Mcconnell Samuel Mason Heating apparatus
US1977151A (en) * 1930-09-26 1934-10-16 Schottky Walter Electric fire lighting apparatus
US1955240A (en) * 1930-12-05 1934-04-17 Edward F Woods Apparatus for removing paint
US2027605A (en) * 1932-01-20 1936-01-14 Mccord Radiator & Mfg Co Portable electric drier
US2049812A (en) * 1932-08-29 1936-08-04 Loacker Albert Device for drying containers internally
US2042264A (en) * 1935-02-12 1936-05-26 Alexander F Levenhagen Hot air gun
US2031391A (en) * 1935-02-18 1936-02-18 Black & Decker Electric Compan Heat gun
US2114494A (en) * 1935-08-12 1938-04-19 Mildred E Hummel Insect extermination
GB803329A (en) * 1955-10-13 1958-10-22 Patrick Clement Cox Improvements in, or relating to, portable electrical heating appliances

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371188A (en) * 1965-08-25 1968-02-27 Henes Mfg Company Inc Electrically heated torch for elevating the temperature and directing the flow of a gas
US3404257A (en) * 1965-09-29 1968-10-01 Fmc Corp Air-heating system for heat-sealing containers
US3492462A (en) * 1966-10-03 1970-01-27 Fred E Schumacher Heat gun
US3610881A (en) * 1968-07-29 1971-10-05 Trigg Stewart Portable electric air-heating gun and oven
US3654431A (en) * 1970-08-19 1972-04-04 Sylvania Electric Prod Bunsen burner simulating flameless electric heater
US3846618A (en) * 1972-03-09 1974-11-05 Air Knife Inc Electric heating apparatus for removing textile waste material
US3783236A (en) * 1973-03-02 1974-01-01 Gte Sylvania Inc Electrically operated steam heater
US4471213A (en) * 1981-06-23 1984-09-11 Matsushita Electric Works, Ltd. Uniform airstream distribution hair dryer
WO1983002753A1 (en) * 1982-02-12 1983-08-18 Skarsten, Stephen, Randolph Heated gas blower device
EP0125109A2 (en) * 1983-05-05 1984-11-14 Black & Decker Inc. Guard for a hot air gun
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