US1992593A - Portable electric heater - Google Patents
Portable electric heater Download PDFInfo
- Publication number
- US1992593A US1992593A US619462A US61946232A US1992593A US 1992593 A US1992593 A US 1992593A US 619462 A US619462 A US 619462A US 61946232 A US61946232 A US 61946232A US 1992593 A US1992593 A US 1992593A
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- United States
- Prior art keywords
- heater
- grid
- portable electric
- electric heater
- supporting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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-
- 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
- F24H3/002—Air heaters using electric energy supply
Definitions
- the object of the invention is to provide improvements in heaters broadly, but .more especially in that type which is designed to heat containers of food and the like, such as milk bottles for infants. 7
- Another object is to provide a heater, which is primarily flexible to permit its being laid out flat, as for instance in ones valise when travelling, and which when desired for use can be rolled into a hollow cylindrical shape, of various diameters, if preferred, in order to accommodate containers of, different sizes.
- a further object is to provide for a device of this character an improved bracket, whereby the heater may be detachably secured to various supporting surfaces, such as the dashboardof a vehicle, and means for connecting the heater to said bracket, which means also comprise means for conducting electric current from a suitable source, such as the customary storage battery of the vehicle, to the resistance unit forming a part
- Still another object is to provide in such a device the combination of a flat resistance unit with terminals therefore, which terminals also comprise means for detachably connecting the device to the bracket hereinbefore referred to, said unit being properly covered upon both faces and upon its outer face being insulated, so as to minimize radiation away from the object positioned within and to be heated by the device.
- Fig. 1 is a plan view of a heater comprising one embodiment of the invention in extended position and with a portion of the inner fabric or lining material broken away;
- Fig. 2 is a side elevation of the same in operative position and containing a bottle or similar container;
- Fig. 3 is a section on the line 3-3 of Fig. 1;
- Fig. 4 is a partially fragmentary side elevation of the improved bracket used to normally support the heater;
- Fig. 5 is a plan view of the preferred form of resistance grid secured to asbestos or similar lining of insulation material.
- the preferred embodiment of the invention comprises an outer layer of fabric, leather, or other suitable material 1, the peripheral edge portions 2 of which may be folded over, so as to protect the adjacent edge portions of a layer of asbestos 3 or other insulating material next to said outer layer, also a flat electric resistance unit or grid 4, and the inner layer 5 which covers said grid and may also be made of fabric or other suitable material.
- the outer surface of the outer fabric 1 is pro vided adjacent to one end portion with one or more so-called glove fasteners 6 or equivalent fastening means, while a corresponding fastener 7 is carried by a tongue or reduced extension 8 of i the opposite end portion of said fabric.
- the fasteners 6 and 7 may be connected so as to provide a holder for one or more sizes of bottles, cans, or other desired containersv 9, which is prevented from falling from within the heater by a strap 10 or the like, provided with.
- a fastener 11 which is adapted to operatively engage a corresponding fastener 12 upon the outer surface of said outer layer.
- the electric resistance unit 4 is preferably in the form of a grid, though it may assume the shape of resistance material in wire or tap form wound upon a suitable heat-resistant base memher, if preferred.
- a grid comprising a plurality of alternately directed spaced parallel sections 13 is provided, each such section being preferably stitched by threads 14 to the heat-resistant base layer 3 of asbestos or the like.
- one of the said ends 15 at least may be directed towards the other end 16, so that suitable eyelet fasteners 1'7 and 18 respectively may be closely associated, after they are secured to the said grid ends and to the asbestos base and outer covering layer as shown, said fasteners then simultaneously comprising electric terminals for said grid, and supporting means for the heater as hereinafter described.
- the clamp which is representative of any form of clamp which is adapted for the purpose which this clamp is intended.
- the clamp comprises a U-shaped member 19 having two integral arms 20 and 21, through the former of which there extends a clamping screw 22 or the like, While the latter arm issecured to or molded in a head 23 of suitable insulating material, in which is al o embedded a metallic fastening member 24 both in contact with the clamp arm 21 and adapted to securely receive the terminal fastener 17 carried by the heater, a second metallic fastening member 25 being also embedded within the head 23 and being operative to securely receive the terminal fastener 18 carried by the heater,
- said last-named member, 25 being connected to a source of electric current of preferably very low voltage, such as the 6 volts given oil by the storage batteries (not shown) in common use today in automotive vehicles.
- a source of electric current of preferably very low voltage, such as the 6 volts given oil by the storage batteries (not shown) in common use today in automotive vehicles.
- Such electric connection is made by means of a wire 26, which may extend rearwardly from the fastener 25 through the usual dash or instrument board 27 of a vehicle, or other suitable support, which is clampedbetween the head 23 and the screw 22, said clamp and at least a portion of said board forming a ground connection for the electric current entering the heater through the fasteners 24 and 17.
- the device may also be provided with a suitable loop 23 for supporting it when the clamp 19 and its connections are not available.
- wires may lead from the ends of the grid to a plug-and-socket connection (not shown), while the shape, size and arrangement of the several elements comprising the device, as well as the material of which they are made, may be altered whenever and as desired in order to lower the cost of manufacture, to simplify the article, or to increase the eificiency thereof.
- a portable electric heater comprising a flexible supporting member adapted to be extended in flat shape when not in use, a flexible grid attached thereto, means to yieldingly secure said member in the shape of a hollow body adapted to receive and surround an article to be heated, and means carried by one portion of said member and adapted to extend towards and have its free end secured to another portion of said member, to provide supporting means for an article surrounded .by said member.
- a portable electric heater comprising a flex- I ll,992,593
- ible supporting member adapted to be extended in flat shape when not in use, a flexible grid attached thereto, means to yieldingly secure said member in the shape of a hollow body adapted to receive and surround an article to be heated, sup-- porting elements carried by said member and also comprising the electric terminals of said grid, and a supporting bracket engageable by said elements and operative to conduct electric current to and from said grid by way of said elements.
- a portable electric heater comprising a fleaible supporting member adapted to be extended in fiat shape when not in use, a flexible grid attached thereto, means to yieldingly secure said member in the shapeof a hollow body adapted to receive and surround an article to be heated, means carried by one portion of said member and adapted to extend towards and have its free end secured to another portion of said member, to provide supporting means for an article surrounded by said member, supporting elements carried by said member and also ccnprising the electric terminals of said grid, and a supporting bracket engageable by said elements and operative to conduct electric current to and from said grid by way of said elements.
- a portable electric heater comprising a flexible supporting structure in turn comprising an outer covering, a sheet of flexible homogeneous heat-insulating material next thereto, a resistance unit adjacent to said materialna protective lining for said structure, means to yieldingly secure the opposite edge portions of said structure to provide a hollow container for an article being heated, and means detachable from one of said edge portions to yieldingly effect the closing of one end of such container to prevent the passage of an article being heated therefrom in one direction.
Description
Feb. 26, 1935. 4; 1.. WHITN'EY 2,
" I PORTABLE ELECTRIC HEATER Filed June 27, 1932 I J If .5. l6 1 L I] (I -//4 x "15 l INVENTOR 4 a -CharleslZW/ufngy,
ATTORNEY of the heater.
Patented Feb. 26, '1935 Charles L Whitney,
Upper Darby, Pa., assignor to Fiexo Heat Company, Inez, a corporation of Pennsylvania Application June'Z'I, 1932, Serial No. 619,462
4 Claims. (01. 219-46) The object of the invention is to provide improvements in heaters broadly, but .more especially in that type which is designed to heat containers of food and the like, such as milk bottles for infants. 7
Another object is to provide a heater, which is primarily flexible to permit its being laid out flat, as for instance in ones valise when travelling, and which when desired for use can be rolled into a hollow cylindrical shape, of various diameters, if preferred, in order to accommodate containers of, different sizes.
A further object is to provide for a device of this character an improved bracket, whereby the heater may be detachably secured to various supporting surfaces, such as the dashboardof a vehicle, and means for connecting the heater to said bracket, which means also comprise means for conducting electric current from a suitable source, such as the customary storage battery of the vehicle, to the resistance unit forming a part Still another object is to provide in such a device the combination of a flat resistance unit with terminals therefore, which terminals also comprise means for detachably connecting the device to the bracket hereinbefore referred to, said unit being properly covered upon both faces and upon its outer face being insulated, so as to minimize radiation away from the object positioned within and to be heated by the device.
With these and other objects in mind, the present invention comprises further details of con-. struction and operation which are fully brought out in the following description when read in conjunction with the accompanying drawing in which Fig. 1 is a plan view of a heater comprising one embodiment of the invention in extended position and with a portion of the inner fabric or lining material broken away; Fig. 2 is a side elevation of the same in operative position and containing a bottle or similar container; Fig. 3 is a section on the line 3-3 of Fig. 1; Fig. 4 is a partially fragmentary side elevation of the improved bracket used to normally support the heater; and Fig. 5 is a plan view of the preferred form of resistance grid secured to asbestos or similar lining of insulation material.
Referring to the drawing, the preferred embodiment of the invention comprises an outer layer of fabric, leather, or other suitable material 1, the peripheral edge portions 2 of which may be folded over, so as to protect the adjacent edge portions of a layer of asbestos 3 or other insulating material next to said outer layer, also a flat electric resistance unit or grid 4, and the inner layer 5 which covers said grid and may also be made of fabric or other suitable material.
The outer surface of the outer fabric 1 is pro vided adjacent to one end portion with one or more so-called glove fasteners 6 or equivalent fastening means, while a corresponding fastener 7 is carried by a tongue or reduced extension 8 of i the opposite end portion of said fabric. Thus, when the device is rolled into substantially cylindrical form, the fasteners 6 and 7 may be connected so as to provide a holder for one or more sizes of bottles, cans, or other desired containersv 9, which is prevented from falling from within the heater by a strap 10 or the like, provided with. a fastener 11 which is adapted to operatively engage a corresponding fastener 12 upon the outer surface of said outer layer.
The electric resistance unit 4 is preferably in the form of a grid, though it may assume the shape of resistance material in wire or tap form wound upon a suitable heat-resistant base memher, if preferred. In the present case, a grid comprising a plurality of alternately directed spaced parallel sections 13 is provided, each such section being preferably stitched by threads 14 to the heat-resistant base layer 3 of asbestos or the like. While the electrically opposite ends of the grid may be arranged respectively, or positioned in the heater, in any desired manner, one of the said ends 15 at least may be directed towards the other end 16, so that suitable eyelet fasteners 1'7 and 18 respectively may be closely associated, after they are secured to the said grid ends and to the asbestos base and outer covering layer as shown, said fasteners then simultaneously comprising electric terminals for said grid, and supporting means for the heater as hereinafter described.
Referring to Fig. 4, there is shown a clamp which is representative of any form of clamp which is adapted for the purpose which this clamp is intended. Specifically, the clamp comprises a U-shaped member 19 having two integral arms 20 and 21, through the former of which there extends a clamping screw 22 or the like, While the latter arm issecured to or molded in a head 23 of suitable insulating material, in which is al o embedded a metallic fastening member 24 both in contact with the clamp arm 21 and adapted to securely receive the terminal fastener 17 carried by the heater, a second metallic fastening member 25 being also embedded within the head 23 and being operative to securely receive the terminal fastener 18 carried by the heater,
said last-named member, 25 being connected to a source of electric current of preferably very low voltage, such as the 6 volts given oil by the storage batteries (not shown) in common use today in automotive vehicles. Such electric connection is made by means of a wire 26, which may extend rearwardly from the fastener 25 through the usual dash or instrument board 27 of a vehicle, or other suitable support, which is clampedbetween the head 23 and the screw 22, said clamp and at least a portion of said board forming a ground connection for the electric current entering the heater through the fasteners 24 and 17.
The device, if desired, may also be provided with a suitable loop 23 for supporting it when the clamp 19 and its connections are not available. Also, instead of or in addition to the terminal fasteners 1'7 and 18, wires may lead from the ends of the grid to a plug-and-socket connection (not shown), while the shape, size and arrangement of the several elements comprising the device, as well as the material of which they are made, may be altered whenever and as desired in order to lower the cost of manufacture, to simplify the article, or to increase the eificiency thereof.
Having thus described my invention, what I claim and desire to protect by Letters Patent of the United States is:-
1. A portable electric heater, comprising a flexible supporting member adapted to be extended in flat shape when not in use, a flexible grid attached thereto, means to yieldingly secure said member in the shape of a hollow body adapted to receive and surround an article to be heated, and means carried by one portion of said member and adapted to extend towards and have its free end secured to another portion of said member, to provide supporting means for an article surrounded .by said member.
2. A portable electric heater, comprising a flex- I ll,992,593
ible supporting member adapted to be extended in flat shape when not in use, a flexible grid attached thereto, means to yieldingly secure said member in the shape of a hollow body adapted to receive and surround an article to be heated, sup-- porting elements carried by said member and also comprising the electric terminals of said grid, and a supporting bracket engageable by said elements and operative to conduct electric current to and from said grid by way of said elements.
3. A portable electric heater, comprising a fleaible supporting member adapted to be extended in fiat shape when not in use, a flexible grid attached thereto, means to yieldingly secure said member in the shapeof a hollow body adapted to receive and surround an article to be heated, means carried by one portion of said member and adapted to extend towards and have its free end secured to another portion of said member, to provide supporting means for an article surrounded by said member, supporting elements carried by said member and also ccnprising the electric terminals of said grid, and a supporting bracket engageable by said elements and operative to conduct electric current to and from said grid by way of said elements.
4. A portable electric heater, comprising a flexible supporting structure in turn comprising an outer covering, a sheet of flexible homogeneous heat-insulating material next thereto, a resistance unit adjacent to said materialna protective lining for said structure, means to yieldingly secure the opposite edge portions of said structure to provide a hollow container for an article being heated, and means detachable from one of said edge portions to yieldingly effect the closing of one end of such container to prevent the passage of an article being heated therefrom in one direction.
CHARLES L. WHITNEY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US619462A US1992593A (en) | 1932-06-27 | 1932-06-27 | Portable electric heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US619462A US1992593A (en) | 1932-06-27 | 1932-06-27 | Portable electric heater |
Publications (1)
Publication Number | Publication Date |
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US1992593A true US1992593A (en) | 1935-02-26 |
Family
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Family Applications (1)
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US619462A Expired - Lifetime US1992593A (en) | 1932-06-27 | 1932-06-27 | Portable electric heater |
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Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2448569A (en) * | 1944-03-14 | 1948-09-07 | Disposable Bottle Corp | Nursing unit |
US2462847A (en) * | 1947-07-28 | 1949-03-01 | Valdale Company Inc | Electrically heated fabric |
US2516637A (en) * | 1948-09-24 | 1950-07-25 | Mccollum Estel Bertrum | Warmer for nursing bottles |
US2526447A (en) * | 1949-08-10 | 1950-10-17 | William L Aiken | Bottle warmer |
US2607879A (en) * | 1948-04-03 | 1952-08-19 | Wingfoot Corp | Liquid container |
US2609479A (en) * | 1950-06-27 | 1952-09-02 | Loewe Paul | Flexible electric heater |
US2712591A (en) * | 1953-04-03 | 1955-07-05 | Albert S Rogell | Electrical bandage |
US2719213A (en) * | 1949-07-21 | 1955-09-27 | Oliver F Johnson | Heat shield |
US2797296A (en) * | 1955-07-25 | 1957-06-25 | Paul L Fowler | Electric heater |
US2879367A (en) * | 1955-04-25 | 1959-03-24 | Douglas K Mclean | Food package |
US2938103A (en) * | 1958-04-11 | 1960-05-24 | Electrofilm Inc | Thermostat-carrying electrical heating materials for surface application |
US2942461A (en) * | 1955-12-16 | 1960-06-28 | Texaco Inc | Well bore hole logging |
US3079486A (en) * | 1961-05-22 | 1963-02-26 | Wincheil Paul | Electrical heater for a container |
US3968348A (en) * | 1974-05-31 | 1976-07-06 | Stanfield Phillip W | Container heating jacket |
US3970823A (en) * | 1974-12-05 | 1976-07-20 | Beta Corporation Of St. Louis | Electric heater |
US4065660A (en) * | 1975-04-04 | 1977-12-27 | Seb S.A. | Electrical appliance for heating feeding-bottles and like containers |
US4329569A (en) * | 1979-05-16 | 1982-05-11 | Bulten-Kanthal Ab | Resilient snap-on electric heating jacket for tubular objects |
US4912303A (en) * | 1989-02-17 | 1990-03-27 | Beavers Allan E | Electric heating belt for liquid propane bottles |
US5408068A (en) * | 1991-12-24 | 1995-04-18 | Ng; Wai-Man | Electric heater for use in vehicle |
US6188051B1 (en) | 1999-06-01 | 2001-02-13 | Watlow Polymer Technologies | Method of manufacturing a sheathed electrical heater assembly |
US6263158B1 (en) | 1999-05-11 | 2001-07-17 | Watlow Polymer Technologies | Fibrous supported polymer encapsulated electrical component |
US6380523B1 (en) * | 2000-11-24 | 2002-04-30 | W. Tommy Jones, Sr. | Tank heating apparatus |
US6392208B1 (en) | 1999-08-06 | 2002-05-21 | Watlow Polymer Technologies | Electrofusing of thermoplastic heating elements and elements made thereby |
US6392206B1 (en) | 2000-04-07 | 2002-05-21 | Waltow Polymer Technologies | Modular heat exchanger |
US6433317B1 (en) | 2000-04-07 | 2002-08-13 | Watlow Polymer Technologies | Molded assembly with heating element captured therein |
US6432344B1 (en) | 1994-12-29 | 2002-08-13 | Watlow Polymer Technology | Method of making an improved polymeric immersion heating element with skeletal support and optional heat transfer fins |
US6516142B2 (en) | 2001-01-08 | 2003-02-04 | Watlow Polymer Technologies | Internal heating element for pipes and tubes |
US6519835B1 (en) | 2000-08-18 | 2003-02-18 | Watlow Polymer Technologies | Method of formable thermoplastic laminate heated element assembly |
US20050098684A1 (en) * | 2003-03-14 | 2005-05-12 | Watlow Polymer Technologies | Polymer-encapsulated heating elements for controlling the temperature of an aircraft compartment |
US20070181561A1 (en) * | 2006-02-08 | 2007-08-09 | Chemprene, Inc. | Bottle heater |
US20070267536A1 (en) * | 2005-05-27 | 2007-11-22 | Hill Herbert A | Method and apparatus for pre-heating an aircraft engine |
US20140069910A1 (en) * | 2012-09-10 | 2014-03-13 | Chulho Kang | Heating pad for agar or agarose gel |
-
1932
- 1932-06-27 US US619462A patent/US1992593A/en not_active Expired - Lifetime
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2448569A (en) * | 1944-03-14 | 1948-09-07 | Disposable Bottle Corp | Nursing unit |
US2462847A (en) * | 1947-07-28 | 1949-03-01 | Valdale Company Inc | Electrically heated fabric |
US2607879A (en) * | 1948-04-03 | 1952-08-19 | Wingfoot Corp | Liquid container |
US2516637A (en) * | 1948-09-24 | 1950-07-25 | Mccollum Estel Bertrum | Warmer for nursing bottles |
US2719213A (en) * | 1949-07-21 | 1955-09-27 | Oliver F Johnson | Heat shield |
US2526447A (en) * | 1949-08-10 | 1950-10-17 | William L Aiken | Bottle warmer |
US2609479A (en) * | 1950-06-27 | 1952-09-02 | Loewe Paul | Flexible electric heater |
US2712591A (en) * | 1953-04-03 | 1955-07-05 | Albert S Rogell | Electrical bandage |
US2879367A (en) * | 1955-04-25 | 1959-03-24 | Douglas K Mclean | Food package |
US2797296A (en) * | 1955-07-25 | 1957-06-25 | Paul L Fowler | Electric heater |
US2942461A (en) * | 1955-12-16 | 1960-06-28 | Texaco Inc | Well bore hole logging |
US2938103A (en) * | 1958-04-11 | 1960-05-24 | Electrofilm Inc | Thermostat-carrying electrical heating materials for surface application |
US3079486A (en) * | 1961-05-22 | 1963-02-26 | Wincheil Paul | Electrical heater for a container |
US3968348A (en) * | 1974-05-31 | 1976-07-06 | Stanfield Phillip W | Container heating jacket |
US3970823A (en) * | 1974-12-05 | 1976-07-20 | Beta Corporation Of St. Louis | Electric heater |
US4065660A (en) * | 1975-04-04 | 1977-12-27 | Seb S.A. | Electrical appliance for heating feeding-bottles and like containers |
US4329569A (en) * | 1979-05-16 | 1982-05-11 | Bulten-Kanthal Ab | Resilient snap-on electric heating jacket for tubular objects |
US4912303A (en) * | 1989-02-17 | 1990-03-27 | Beavers Allan E | Electric heating belt for liquid propane bottles |
US5408068A (en) * | 1991-12-24 | 1995-04-18 | Ng; Wai-Man | Electric heater for use in vehicle |
US6432344B1 (en) | 1994-12-29 | 2002-08-13 | Watlow Polymer Technology | Method of making an improved polymeric immersion heating element with skeletal support and optional heat transfer fins |
US6263158B1 (en) | 1999-05-11 | 2001-07-17 | Watlow Polymer Technologies | Fibrous supported polymer encapsulated electrical component |
US6434328B2 (en) | 1999-05-11 | 2002-08-13 | Watlow Polymer Technology | Fibrous supported polymer encapsulated electrical component |
US6188051B1 (en) | 1999-06-01 | 2001-02-13 | Watlow Polymer Technologies | Method of manufacturing a sheathed electrical heater assembly |
US6392208B1 (en) | 1999-08-06 | 2002-05-21 | Watlow Polymer Technologies | Electrofusing of thermoplastic heating elements and elements made thereby |
US6392206B1 (en) | 2000-04-07 | 2002-05-21 | Waltow Polymer Technologies | Modular heat exchanger |
US6433317B1 (en) | 2000-04-07 | 2002-08-13 | Watlow Polymer Technologies | Molded assembly with heating element captured therein |
US6748646B2 (en) | 2000-04-07 | 2004-06-15 | Watlow Polymer Technologies | Method of manufacturing a molded heating element assembly |
US6541744B2 (en) | 2000-08-18 | 2003-04-01 | Watlow Polymer Technologies | Packaging having self-contained heater |
US6519835B1 (en) | 2000-08-18 | 2003-02-18 | Watlow Polymer Technologies | Method of formable thermoplastic laminate heated element assembly |
US6380523B1 (en) * | 2000-11-24 | 2002-04-30 | W. Tommy Jones, Sr. | Tank heating apparatus |
US6516142B2 (en) | 2001-01-08 | 2003-02-04 | Watlow Polymer Technologies | Internal heating element for pipes and tubes |
US6744978B2 (en) | 2001-01-08 | 2004-06-01 | Watlow Polymer Technologies | Small diameter low watt density immersion heating element |
US6539171B2 (en) | 2001-01-08 | 2003-03-25 | Watlow Polymer Technologies | Flexible spirally shaped heating element |
US20050098684A1 (en) * | 2003-03-14 | 2005-05-12 | Watlow Polymer Technologies | Polymer-encapsulated heating elements for controlling the temperature of an aircraft compartment |
US20070267536A1 (en) * | 2005-05-27 | 2007-11-22 | Hill Herbert A | Method and apparatus for pre-heating an aircraft engine |
US20070181561A1 (en) * | 2006-02-08 | 2007-08-09 | Chemprene, Inc. | Bottle heater |
US20140069910A1 (en) * | 2012-09-10 | 2014-03-13 | Chulho Kang | Heating pad for agar or agarose gel |
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