CA1096919A - Heating assemblies - Google Patents

Heating assemblies

Info

Publication number
CA1096919A
CA1096919A CA277,662A CA277662A CA1096919A CA 1096919 A CA1096919 A CA 1096919A CA 277662 A CA277662 A CA 277662A CA 1096919 A CA1096919 A CA 1096919A
Authority
CA
Canada
Prior art keywords
panel
heat
assembly according
rigid
facing
Prior art date
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
Application number
CA277,662A
Other languages
French (fr)
Inventor
Joseph Bender
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUEBNER BROS CANADA Ltd
Original Assignee
HUEBNER BROS CANADA Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUEBNER BROS CANADA Ltd filed Critical HUEBNER BROS CANADA Ltd
Application granted granted Critical
Publication of CA1096919A publication Critical patent/CA1096919A/en
Expired legal-status Critical Current

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  • Central Heating Systems (AREA)
  • Laminated Bodies (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
A heating strip or film panel is connectable to a source of electrical power and is sandwiched between one or more facing panels or flexible or rigid material, and when con-nected to a source of electrical power, radiate heat from one or both sides. In one embodiment, insulation and a reflective sheet may be incorporated so that one side of the assembly re-main cool and the other radiates heat. If required, the assem-bly may be used in any location requiring heat and in which the panels can be mounted such as in walls, ceilings, floors and the like. In another embodiment, the panels are flexible and can be wrapped around the object to be heated. If desired, the panel can be molded into a helmet shaped configuration and can be used, for example, as a hair dryer and in another embodiment, a flexible panel can be routed around dowels to give an in-creased cross-sectional heat source area as compared with a planar sheet.

Description

- ~ ;

BACKGROUND OF THE INVENTION
This invention relates to electrical heat strip or film assemblies utilizing, for example, film illustrated and de-scribed in United States patent 3,865,626.

Basically, it is a laminated synthetic plastic film which is flexible and between which is incorporated electrical conductive resistive material. By varying the quantity of material sandwiched between the flexible plastic film, varying wattages can be produced. A copper or other conducting strip is situated on each side edge of the film which enables connec-- . :: .
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~0969~9 tion to be made to a source of electrical power.

SUMMARY OF THE INVENTION
In the present invention a construction is shown and described which incorporates a facing material, the electrical heat strip or film, insulating material, a reflective film and a support substrate or combinations thereof.

In accordance with the invention, there is provided a heating assembly for use with a source of electrical power and comprising in combination a panel construction including a heat film panel and a facing material panel on at least one side thereof, means to secure said panels together in laiminated re-lationship, means to operatively connect said heat film panel with the source of electrical power, and means to form said heat film panel in a corrugated configuration, said means including a plurality of guides situated in spaced and parallel relation-ship with one another, said heat film panel following said guides and being routed thereover in a serpentine formation.

Another aspect of the invention incorporates the heat strip or film between two facing materials which may be flexi-ble or rigid, thus giving two warm sides to the structure ratherthan one warm side and one cold side.

Another embodiment contemplates a wall or ceiling panel consisting of a sheet of the heat strip or film having a panel on one side which becomes the warm side, and a wall panel and reflec-tive panel on the other which becomes the cold side, all of thepanels being secured together by adhesive or the like to form a sandwiched wall panel which incorporates a source of heat
-2-~0~69~g in the form of the heat strip or film and which can be used in many locations for not only as a decorative wall or ceiling panel, but also as a heating panel. Alterna-tively, it can be utilized as a floor heating panel if desired.

With the foregoing objects in view, and other such objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, my invention consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawings in which:-DESCRIPTION OF THE DRAWINGS
Figure 1 shows a schematic cross sectional view of one embodiment having one warm side and one cool side~
.

Figure 2 is a view similar to Figure 1, but show-ing an embodiment with two warm sides~

Figure 3 is a schematic cross sectional view of an alternative embodiment having one cool side and one warm side~ :

Figure 4 is a view similar to Figure 3, but having two warm sides~

~o~gi9 Figure 5 is a schematic cross sectional view of an alternative embodiment, particularly suited for use with an enclosure such as a hair dryer or the like.

Figure 6 is a fragmentary side elevation of a heat-ing fixture incorporating the heat strip or film.

Figure 7 is a schematic end view of Figure 6.

Figure 8 is an isometric exploded view of a wallpanel incorporating the heat strip or film.

Figure 9 is a plan view of the embodiment of Figure 8 assembled and reduced in scale.

In the drawings like characters of reference indicate corresponding parts in the different figures.

DETAILED DESCRIPTION
Proceeding therefore to describe the invention in de-tail, reference should first be made to Figure 1 which includes a construction having a facing material 10, a layer or panel of heat strip or film 11 on one side thereof, insulating material 12 which may take the form of a panel, a reflector film or panel 13 and any substrate, support or facing panel 14.

The high strength polyester film of low surface resis-tance is produced by treating one or both surfaces of a stretch-ed polyester film of high mechanical strength ~,~, with a solvent or swelling agent capable of swelling or superficially dissolving the polyester film surface, applying electroconductive particles, preferably carbon black, to the surface in a concentration corresponding to the desired surface resistance, and then subjecting the film to a heat treatment. In the case of pigments which are inert to the solvents or swelling agents employed, such as carbon black, the procedure is advantageously such that the electroconductive particles are dispersed in the solvents or swelling agents used for superficially dissolving or swelling the surface of the polyester film, the concentration of the dispersion~ relative to the pro-portion of pigment, ranging from 0.1 to 12.0% by weight, preferably from 0.5 to 5.0%. The quantity of carbon black to be employed per square me~er of film surface ranges from 0~1 g/m2 to 5.0 g/m~ preferably from 0.3 g/m to 3.0 g/m~ The dispersion is applied to the film surface and the film is then subjected to a heat treatment.
Preferably, the electroconductive particles are sandwiched between two layers of polyester film laminated together and incorporating electrical conductors shown schematic-ally by reference character llA, adjacent each side edge in the form of metallic ribbons or strips or the like, connectable to a source of electrical energy.

The facing material can be any material that is rigid, semi-rigid or flexible and in any thickness re- ^-quired and due to the heat generated by the heat s~rip or rilm~ it is recommended that this facing material be manufactured from a substance approved by government re-gulations ~or the intended purpose and that the material be rated for the applicable surface temperatures generated by the heat strip or film incorporated therein.

The material may be sandwiched together with the other components 11, 12, 13 and 14, and secured adhesively or by any other conventional means, or can be laid up with an air space therebetween, if desired. Examples offacing materials 10 in-clude plastic, metal or wood panelling or film, or plasterboard panels and the like.

The heat generated by the heat strip or film 11 is radiated in general towards the warm sides 15 firstly because of the insulation layer 12 and secondly and more importantly, because of the reflector film 13 thus giving the warm side 15 and the cool side 16 as shown.

The insulating material can be any material that is rigid, semi-rigid or flexible and includes air spaces, in any thickness designed to give the proper separation between the heat strip 11 and the reflector film 13 or other substrate used.

The relfector film or panel may be any material that can be efficiently utilized for the purpose intended. It has been demonstrated that the most efficient reflector film is made of aluminium or glass and the choice of the material depends upon design parameters.

~ .

1C~9~;9~
: The substrate or other facing panel can be any material or medium approved by the governing authorities for its intended purposes such as wood, metal, plastic, plaster board and the like.

The construction shown in Figure 1, if flexible, can be wrapped around any container or vessel that it is required to heat and, of course, the heat is controlled by the design of the heat strip or ilm 11 incorporated therein~ it being understood that it is connected to a source of electrical energy and controlled thermostatically by conventional means (not illustrated).

Figure 2 shows an alternative construction in which the facing material 10 is on both sides of the heat strip or film 11 thus giving two warm sides 15 as illus-trated. Once again this construction can be flexible or rigid depending upon its intended use~

If it is desired to increase the intensity of the heat over a specified area, the construction shown in Figures 3 and 4 can be utilized~ r ~0 Figure 3 shows facing material 10, insulating material 1~ and substrate 14 with reflector film 13 be-ing situated between the insulation and the substrate as hereinbefore describedO

;9~ 9 However, in this embodiment, the heat strip or film 11 is corrugated by passing same around alternately staggered dowels 17 as illustrated schematically in Figures 3 and 4. The corrugation dimensions for these applications shown in Figures 3 and 4 can be dimensions that are designed for the intended purpose and can vary according to design parameters. Once again this parti-cular application gives a warm side 15 and a cool side 16.

Figure 4 shows a similar construction in which facing materials 10 are situated on both sides of the corrugated heat strip or film 11 thus giving two warm side~ 15 as illustrated.

The application shown schematically in Figure 5 includes a protective backing or facing material 10A, reflector film 13, insulating material 12V heat strip or film 11 and inner facing material 10B all of which are adhesively secured together, it being understood that the protective backing or facing material 10A is the outer side of the construction thus giving the cool side 15 on the outer side and the warm side 16 on the inner side.

The radius shown can be infinite providing it does not interfere with the safe and proper usage of the flexible heat strip or film 11 and although a curved surface i5 shown which is hemispherical~ nevertheless it ~(~a'6~19 will be appreciated that the construction is applicable to any configuration and dimension desired.

This type of construction, which is preferably rigid, i~ ideally ~uited to such application~ a~ hair dryers and the like, and can be formed in a dome or hemispherical shaped helmet type configuration~

Figures 6 and 7 show the heat strip or film 11 utilized in a ceiling or wall heating fixture which in-cludes an elongated casing 18 in the form of a lamp fix-ture or the like and having rigid insulation in the form of urethane or the like 19 adjacent the inner wall with a reflec~or film or plate 20 on one side of the insula-tion l9o The heat strip or film ll is preferably formed in the configuration shown to give maximum effect and is situated below the insulation 19 with a plastic egg crat-ing type panel 21 being situated on the warm side of the heat strip or film ll~ it being understood that the side 22 of the fitting is the cool side.

A cable 23 extends from one end and may be con-nected to a source of electrical energy on one side and ~o the heat strip or film ll on the other.

This enables heating units to be suspended or ~969~9 fastened to walls wherever desired and they are parti-cularly adapted for use with recessed ceilings with the egg crating 21 conforming with the conventional egg crating used with recessed lighting associated in the S same ceiling~

Finally, reference should be made to Figures 8 and 9 which shows the construction of rigid wall panels.

In this embodiment, a quarter inch sheet of ply-wood 24 has a sheet of heat strip or film stapled there-to by means of staples 24'~ A further sheet of plywood 25 is then placed on the other side of the heat strip~ a sheet of aluminium reflector material 13 is placed agairst the other side of the plywood 25 and finally a further sheet of plywood 26 is placed against the other side of the reflector film 13~ These are sandwiched together and held by means of adhesive or any other conventional means with the edges taped by means of a plastic tape 27 extending around three sides of the sandwich as shown in Figure 9.

It will be observed that one end 28 of the heat strip or rilm 11 extends beyond the wall panel construc-tion and is utilized for connecting the heat strip or film to a source of electrical energy as shown schematic-ally in Figure g which shows two panels in side by side relationship~ This provides a wall panel having a warm side 15 and a cool side 16~

1(~96919 The various constructions can be utilized un-der a variety of conditions and for a considerable variety of uses.

Given below is a partial list of the useC to which the various constructions can be placed, in order to supply controlled heat to the item with which it is used~ but it is to be understood that this list is not means to be limited:

RAILWAYS
Marshalling yard oil stands Switches oi 1 Storage Tanks Tar Storage Tanks Oil transportation tank cars Sulphur transportation tank cars Chemical transportation tank cars Aircraft - snowmobiles and tractor heating Wood chip transportation Gondola cars Coal transportation Gondola cars Gravel transportation Gondola cars ore transportation Gondola cars Heated cars for provisions9 fruit, canned goods and vegetable transportation Plenums COMMERCIAL
Buses Perishable food transport trucks ~r~6s~

Oil tank trucks Warehouse heating Office heating Automobile and truck heating Market gardener greenhouses and cold frames Piggy barns Dairy barns Poultry barns Beehives Mining - underground tunnels, eating rooms, water-lines (all types) Surface - water-lines Trenching and excavations Heating for shops, garages, stores, stadiums and arenas Northern installations (N.O.R.A.D.) Grain elevators Grain dryers Airport runways Use in Cooking equipment Ovens Grills Fryers Dishwasher heaters Plate and food warmers Steam cooking equipment Coffee making equipment Food processing of all types All industries requiring heating and/or drying processing Water heating Auto batteries Engines Seats ~0'~69i9 DOMESTIC
Blankets for all types of heat Home heating Mobile trailer homes Travel trailers Campers Heat rixtures Baseboard heat Hair dryers Motel and hotel rooms '~
Ceiling heat Wallboard heat Under floor heating Wall picture heaters Solarium heating Crib heating for premature babies Stadium heating All types of space heating including furnaces and boilers.
MEDICAL
Bed warmers Body warmers Therapeutic equipment Although the flexible and rigid embodiments have be2n mentioned as being used for different purposes as specified above, nevertheless it will be appreciated that the constructions described can be interchanged so far as usage is concerned, depending upon design para-metersO

_ 13 l~9~g~9 SUPPLEMENTARY DISCLOSURE
Figure 9 is a fragmentary top plan ~iew of a panel assembly separated substantially along the line 8-8 of Figure 10.

Figure 10 is a fragmentary side view of one of the guide members with a portion of the flexible heating film secur-ed within the corrugations.

Figure 11 is a partially broken away fragmentary cross sectional view of the preferred embodiment of the invention.

Figure 12 is a fragmentary plan view of one embodiment of a grid which may be used as a facing panel.

Figure 13 is a fragmentary isometric view of one of the corrugated guide members.

In this embodiment, a substantially rectangular fac-ing panel 29 is illustrated which may be made from any desired material such as plywood, plasterboard or the like and is pre-ferably rigid.

A reflective sheet 30 is secured to the inner face of panel 29 by adhesive or some similar means, said reflective sheet being similar to the reflective sheet hereinbefore describ-ed.

Next an insulating panel 31 is secured as by adhesive or the like to the reflective sheet 30, said insulated panel C

preferably being rigid and being formed from an insulating material as hereinbefore described.

A pair of spaced and parallel situated support and guide members are next provided, said members being collective~
ly designated 32.

These may be formed from wood or plastic and are elongated strips 33 having a substantially planar one edge 34 and a corrugated or alternately curved upper edge 35 as clear-ly shown in Figures 9 and 12.

The aforementioned plastic heat film panel 11 is laid between the spaced and parallel guides 33 and ~ngaged with the matching corrugations 35 and it may be stapled in position as illustrated by staples 36 so that it follows the corrugations as shown in Figure 9. These guide members 32 are situated ad-jacent each of two spaced and parallel edges of the assembly and, if necessary, spacer strips 37 may be secured to opposite edges of the glass fiber blanket panel 31 perpendicular to the guide strips or members 32.

Finally a further facing panel 38 may be secured as by adhesive or the like, to the surfaces 24 of the guide strips 32 and to the spacer strips 37.

If desired, edge strips 39 may be secured as by ad-hesive or the like around all four edges of the assembled panel and contacts 39A extending from the heat strip or film 11, ex-tend through the spacers 37 for connection to a source of elec-trical energy.

This assembled wall panel component, as illustrated in Figure 10, includes a cool side at facing panel 29 and a warm side at facing panel 38. They may be used as wall panels or ceiling panels and, if desired, amy be formed with an open grid facing panel 40 in place of panel 38 so that they can be formed similar to light fixtures and placed in the ceiling to direct heat downwardly through the open grid 40.

The forming of the heat panel or strip 11 in a corru-gated configuration, sealed within the panel assembly, gives a greater area of heating medium for a specified planar area.

The corrugation dimensions for the guide members 32 can vary accordiny to design parameters and the radius of cur-vature of the heating film or strip 11 depends upon the con-struction of the film but should ensure the safe and proper usage of the film is not interrupted.

It will of course be appreciated that, if desired, the reflective sheet 30 and the glass fiber blanketmay be elim-inated if two warm sides are required for the finished panel.

Since various modifications can be made in my inven-tion as hereinbefore described, and many apparently widely dif-ferent embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specifi-cation shall be interpreted as illustrative only and not in a limiting sense.

Claims

WHAT I CLAIM AS MY INVENTION IS:
(1) A heating assembly for use with a source of electrical power and comprising in combination a panel con-struction including a heat film panel and a facing material panel on at least one side thereof, means to secure said panels together in laminated relationship, means to operatively connect said heat film panel with the source of electrical power, and means to form said heat film panel in a corrugated configura-tion, said means including a plurality of guides situated in spaced and parallel relationship with one another, said heat film panel following said guides and being routed thereover in a serpentine formation.

(2) The assembly according to Claim 1 which includes a facing material panel on either side of said heat film panel.

(3) The assembly according to Claim 1 which includes a heat reflecting sheet between one of said facing material panels and said heat film panel.

(4) The assembly according to Claim 2 which includes a heat reflecting sheet between one of said facing material panels and said heat film panel.

(5) The assembly according to Claim 3 which includes a heat insulating panel between said reflector sheet and said one facing material panel.

(6) The assembly according to Claim 1 in which said assembly includes at least one rigid panel whereby said heating assembly is rigid.

(7) The assembly according to Claim 1 in which said panels are all formed of flexible material whereby said heating assembly is flexible.

CLAIMS SUPPORTED BY THE SUPPLEMENTARY DISCLOSURE
(8) A heating assembly for use with a source of elec-trical power and comprising in combination a panel construction including a heat film panel and a facing material panel on at least one side thereof, means to operatively connect said heat film panel with the source of electrical power, and means to guide said heat film panel in a corrugated configuration, said last mentioned means including at least two support and guide members situated in spaced and parallel relationship with one another, the upper surfaces of said guide members being corrugat-ed, said heat film panel passing over said corrugations in ser-pentine formation and being secured in position to said corru-gations.

(9) The assembly according to Claim 8 which includes a facing material panel on either side of said heat film panel.

(10) The assembly according to Claim 8 which includes an insulating panel on one side of said heat film panel.

(11) The assembly according to Claim 9 which includes an insulating panel on one side of said heat film panel.

(12) The assembly according to Claim 10 which includes a heat reflecting sheet between said facing material panel and said insulating panel.

(13) The assembly according to Claim 11 which includes a heat reflecting sheet between said facing material panel and said insulating panel.

(14) The assembly according to Claims 8, 9 or 10 in which said assembly includes at least one rigid facing material panel whereby said heating assembly is rigid.

(15) The assembly according to Claims 11, 12 or 13 in which said assembly includes at least one rigid facing material panel whereby said heating assembly is rigid.
(16) The assembly according to Claim 11 in which the facing panel remote from said insulating panel is in the form of an open grid.

(17) The assembly according to Claim 13 in which the facing panel remote from said insulating panel is in the form of an open grid.

(18) The assembly according to Claims 8, 9 or 10 which includes a rigid facing panel, a heat reflective sheet secured to the inner surface thereof, a rigid insulating sheet secured to said heat reflecting sheet, spacer means along oppo-site parallel sides of said insulating sheet, said guide mem-bers extending perpendicularly between adjacent the ends of said spacer means, and a further rigid facing panel secured to said spacer means and said guide members.

(19) The assembly according to Claims 11, 12 or 13 which includes a rigid facing panel, a heat reflective sheet se-cured to the inner surface thereof, a rigid insulating sheet se-cured to said heat reflecting sheet, spacer means along opposite parallel sides of said insulating sheet, said guide members ex-tending perpendicularly between adjacent the ends of said spacer means, and a further rigid facing panel secured to said spacer means and said guide members.
(20) The assembly according to Claims 16 or 17 which includes a rigid facing panel, a heat reflective sheet secured to the inner surface thereof, a rigid insulating sheet secured to said heat reflecting sheet, spacer means along opposite parallel sides of said insulating sheet, said guide members ex-tending perpendicularly between adjacent the ends of said spacer means, and a further rigid facing panel secured to said spacer means and said guide members.
CA277,662A 1976-05-28 1977-05-04 Heating assemblies Expired CA1096919A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB22364/76 1976-05-28
GB2236476 1976-05-28

Publications (1)

Publication Number Publication Date
CA1096919A true CA1096919A (en) 1981-03-03

Family

ID=10178194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA277,662A Expired CA1096919A (en) 1976-05-28 1977-05-04 Heating assemblies

Country Status (1)

Country Link
CA (1) CA1096919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006100307B4 (en) * 2006-04-20 2006-11-02 Ching-Song Chen Heating device with thin heating boards

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006100307B4 (en) * 2006-04-20 2006-11-02 Ching-Song Chen Heating device with thin heating boards

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