CA1078905A - Demisting device for application to the rear window of a passenger car - Google Patents
Demisting device for application to the rear window of a passenger carInfo
- Publication number
- CA1078905A CA1078905A CA284,650A CA284650A CA1078905A CA 1078905 A CA1078905 A CA 1078905A CA 284650 A CA284650 A CA 284650A CA 1078905 A CA1078905 A CA 1078905A
- Authority
- CA
- Canada
- Prior art keywords
- tapes
- carrier
- window
- strips
- adhesive
- 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
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/58—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows
- B60S1/586—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows including defroster or demisting means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
- H05B3/86—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
Abstract
ABSTRACT OF THE DISCLOSURE:
Demisting device for the rear window of a passenger car. It is made up of a sheet carrier over which are applied a series of electrically conductive tapes. Each tape is formed of an aluminum strip connectable to a source of electric current so as to be heated and secured to one surface of a co-extensive strengthening backing film, the other surface of the film being adhered to the carrier so that the strips and films form a series of conducting tapes on the carrier. A layer of adhesive is applied on the surface of the strips remote from the carrier, which adhesive is such as to enable the tapes to adhere to the car window when the strips are pressed against it with a strength greater than that with which the tapes adhere to the carrier so that, after being applied to the window, the carrier can be peeled off from the tapes. In applying the demisting device, the strips and films are first formed into the con-ductive tapes which are spacedly secured to the carrier sheet.
An adhesive is then applied onto the surface of the aluminum strips remote from the carrier, which adhesive is such as to enable the tapes to adhere to a window with a strength greater than that with which the tapes adhere to the carrier. Self-adhesive members of electrically conductive material are then applied to the window and, thereafter, the composite arrange-ment of tapes and carrier is applied to the window with the adhesive surface of the strips foremost so that selected strip portions adhere to the electrically conductive members and the remaining portions adhere to the window. The sheet material is peeled off to leave the tapes secured to the window and the self-adhesive electrically conductive members are connected to the car battery.
Demisting device for the rear window of a passenger car. It is made up of a sheet carrier over which are applied a series of electrically conductive tapes. Each tape is formed of an aluminum strip connectable to a source of electric current so as to be heated and secured to one surface of a co-extensive strengthening backing film, the other surface of the film being adhered to the carrier so that the strips and films form a series of conducting tapes on the carrier. A layer of adhesive is applied on the surface of the strips remote from the carrier, which adhesive is such as to enable the tapes to adhere to the car window when the strips are pressed against it with a strength greater than that with which the tapes adhere to the carrier so that, after being applied to the window, the carrier can be peeled off from the tapes. In applying the demisting device, the strips and films are first formed into the con-ductive tapes which are spacedly secured to the carrier sheet.
An adhesive is then applied onto the surface of the aluminum strips remote from the carrier, which adhesive is such as to enable the tapes to adhere to a window with a strength greater than that with which the tapes adhere to the carrier. Self-adhesive members of electrically conductive material are then applied to the window and, thereafter, the composite arrange-ment of tapes and carrier is applied to the window with the adhesive surface of the strips foremost so that selected strip portions adhere to the electrically conductive members and the remaining portions adhere to the window. The sheet material is peeled off to leave the tapes secured to the window and the self-adhesive electrically conductive members are connected to the car battery.
Description
~078905 This invention relates to a demisting device and to a method of applying it to the rear window of a passenger car.
~ s is known, modern passenger cars, and particularly the bigger model ones, are equipped with heated rear windows, - i.e. a rear window consisting of a glass pane wherein electric resistors have been embedded.
Such resistors are effective to produce an adequate heating of the window such as to prevent the misting up or fogging thereof.
Since the latter phenomenon accurs during the winter season, or in other particular conditions, on all passenger cars, the need is felt for heating devices capable of preven~ing such misting up on cars which do not incorporate a heated rear window.
However, such devices have failed to achieve their objects, both from a functional standpoint and an aesthetical one.
In fact, the devices currently available on the market do not cover the whole area of the rear window, and leave dead corners where condensation impairs visibility.
These same devices, moreover, are formed in the majority of cases by a single coil-like laid wire, thereby an incidental break at any point of the wire puts the whole resistor out of use.
The-above practical drawbacks are avoided in the demisting device of the present invention. It permits a ~-heating structure to be obtained which comprises a plurality of conducting tapes arranged paxallel to one another and being adaptable to fit the dimensions of any rear window such as to heat the whole area thereof, it being easily adjustable to fit the dimensions ofthe rear window fo a wide variety of cars.
More specifically, the invention as herein claimed is ' . .
~078905 .
a demisting device for the use aforesaid which comprises: a carrier material in the form of a sheet; a series of spaced parallel aluminum strips each connectable to a source of electric current and each secured to one surface of co-extensive backing strengthening films of plastics material, the other surface of the films being adhered to the carrier so that the strips and films form a series of conductlng tapes on the carrier.
The surface of the strips which is remote from the carrier has an adhesive which is such as to enable the tapes to adhere to the car window when the strips are pressed against it with a strength greater than that with which the tapes adhere to the carrier whereby, after pressing, the carrier can be peeled off from the tapes.
Also claimed herein, is a method.of applying a demisting device of the above type which comprises: securing aluminum strips to co-extensive reinforcing plastics material films,so as to form a plurality of conducting tapes; securing the tapes through the films in spaced apart arrangement to an adhesive surface of a common carrier material; applying an adhesive over the surface of the strips remote from the carrier to have the tapes adhere to the car window through that surface, the adhesive having a strength greater than that with which the tapes adhere to the carrier; applying self-adhesive members of electrically conductive material to the window; applying the carrier with the tapes thereon to-the window with the adhesive surface of the strips foremost so that selected strip portions adhere to the electrically conductive members and the remaining portions to the window; peeling the carrier material away to leave the tapes secured to the window, ,and connecting the con-ductive members to the car battery through a switch.
It should be noted that, with the above construction,a very thin layer of aluminum can be used since the required ;P ,.
.~
~, ~,, ` `` 1078905 mechanical strength is provided by the backing films of plastics material.
It also becomes possible to apply, through this simple operation, a plurality of resistors on the rear window, and then remove the resistor carrier.
Owing to the small thickness of such structure, it is also possible, through a simple peeling operation, to perfectly adapt it to the dimensions and shape of any rear window of a wide variety of passenger cars.
The plurality of tapes, arranged parallel and horizon-tal, are electrically connected by means of vertical members of a rigid metal material, located at the ends of those horizontal tapes.
Such vertical members are obviously connected to the terminals of the car battery, through a specially provided switch and suitable leads.
Finally, it should be noted that any break in one horizontal tape does not affect the proper operation of the resulting demisting device.
Replacement of a broken tape also offers no parti-cular difficulties.
Figure 1 is a longitudinal sectional view of a conductive tape of a demisting device made according to the invention; `
Figure 2 is a set of parallel tapes of the type of Fig. 1, shown applied to a carrier or supporting sheet material;
Figure 3 illustrates one way of installing the con-nective vertical conductors to the rear window, and Figure 4 shows a demisting device, made according to the invention, applied to the rear window of a passenger car.
With particular reference to the accompanying draw-ings, the shown demisting device comprises a plurality of conductive tapes 1 obtained, by coupling through an adhesive 2, a very thin strip of aluminum 3 with a film 4 of polyester or other suitable plastics material. Furthermore, the tapes are coated with a thin adhesive layer over one of their surfaces.
The sel~-adhesive tapes thus obtained are disposed, with their conductive faces in a parallel type of arrangement, onto a sheet or strip of a supporting material 5 having a suitable height and a small adhesive power.
Such a supporting or carrier material 5 is intended for easy application of the conductive tape set to the rear window 6 of a car, being thereafter removed by being peeled off.
Either before or after, there are applied to the side portions of that rear window electrically conductive self-adhesive members 7, 7', of rigid metal material, which are -appropriately connected to the battery terminals.
The tapes 1 are then cut to fit the side shape of the window, such as to cover the whole area thereof.
From the foregoing description and an inspection of the various figures of the accompanying drawings, the improved functionality and applicational convenience will be apparent which~characterize the demisting device for application to the rear window of a passenger car, according to this invention.
`
`, t,,
~ s is known, modern passenger cars, and particularly the bigger model ones, are equipped with heated rear windows, - i.e. a rear window consisting of a glass pane wherein electric resistors have been embedded.
Such resistors are effective to produce an adequate heating of the window such as to prevent the misting up or fogging thereof.
Since the latter phenomenon accurs during the winter season, or in other particular conditions, on all passenger cars, the need is felt for heating devices capable of preven~ing such misting up on cars which do not incorporate a heated rear window.
However, such devices have failed to achieve their objects, both from a functional standpoint and an aesthetical one.
In fact, the devices currently available on the market do not cover the whole area of the rear window, and leave dead corners where condensation impairs visibility.
These same devices, moreover, are formed in the majority of cases by a single coil-like laid wire, thereby an incidental break at any point of the wire puts the whole resistor out of use.
The-above practical drawbacks are avoided in the demisting device of the present invention. It permits a ~-heating structure to be obtained which comprises a plurality of conducting tapes arranged paxallel to one another and being adaptable to fit the dimensions of any rear window such as to heat the whole area thereof, it being easily adjustable to fit the dimensions ofthe rear window fo a wide variety of cars.
More specifically, the invention as herein claimed is ' . .
~078905 .
a demisting device for the use aforesaid which comprises: a carrier material in the form of a sheet; a series of spaced parallel aluminum strips each connectable to a source of electric current and each secured to one surface of co-extensive backing strengthening films of plastics material, the other surface of the films being adhered to the carrier so that the strips and films form a series of conductlng tapes on the carrier.
The surface of the strips which is remote from the carrier has an adhesive which is such as to enable the tapes to adhere to the car window when the strips are pressed against it with a strength greater than that with which the tapes adhere to the carrier whereby, after pressing, the carrier can be peeled off from the tapes.
Also claimed herein, is a method.of applying a demisting device of the above type which comprises: securing aluminum strips to co-extensive reinforcing plastics material films,so as to form a plurality of conducting tapes; securing the tapes through the films in spaced apart arrangement to an adhesive surface of a common carrier material; applying an adhesive over the surface of the strips remote from the carrier to have the tapes adhere to the car window through that surface, the adhesive having a strength greater than that with which the tapes adhere to the carrier; applying self-adhesive members of electrically conductive material to the window; applying the carrier with the tapes thereon to-the window with the adhesive surface of the strips foremost so that selected strip portions adhere to the electrically conductive members and the remaining portions to the window; peeling the carrier material away to leave the tapes secured to the window, ,and connecting the con-ductive members to the car battery through a switch.
It should be noted that, with the above construction,a very thin layer of aluminum can be used since the required ;P ,.
.~
~, ~,, ` `` 1078905 mechanical strength is provided by the backing films of plastics material.
It also becomes possible to apply, through this simple operation, a plurality of resistors on the rear window, and then remove the resistor carrier.
Owing to the small thickness of such structure, it is also possible, through a simple peeling operation, to perfectly adapt it to the dimensions and shape of any rear window of a wide variety of passenger cars.
The plurality of tapes, arranged parallel and horizon-tal, are electrically connected by means of vertical members of a rigid metal material, located at the ends of those horizontal tapes.
Such vertical members are obviously connected to the terminals of the car battery, through a specially provided switch and suitable leads.
Finally, it should be noted that any break in one horizontal tape does not affect the proper operation of the resulting demisting device.
Replacement of a broken tape also offers no parti-cular difficulties.
Figure 1 is a longitudinal sectional view of a conductive tape of a demisting device made according to the invention; `
Figure 2 is a set of parallel tapes of the type of Fig. 1, shown applied to a carrier or supporting sheet material;
Figure 3 illustrates one way of installing the con-nective vertical conductors to the rear window, and Figure 4 shows a demisting device, made according to the invention, applied to the rear window of a passenger car.
With particular reference to the accompanying draw-ings, the shown demisting device comprises a plurality of conductive tapes 1 obtained, by coupling through an adhesive 2, a very thin strip of aluminum 3 with a film 4 of polyester or other suitable plastics material. Furthermore, the tapes are coated with a thin adhesive layer over one of their surfaces.
The sel~-adhesive tapes thus obtained are disposed, with their conductive faces in a parallel type of arrangement, onto a sheet or strip of a supporting material 5 having a suitable height and a small adhesive power.
Such a supporting or carrier material 5 is intended for easy application of the conductive tape set to the rear window 6 of a car, being thereafter removed by being peeled off.
Either before or after, there are applied to the side portions of that rear window electrically conductive self-adhesive members 7, 7', of rigid metal material, which are -appropriately connected to the battery terminals.
The tapes 1 are then cut to fit the side shape of the window, such as to cover the whole area thereof.
From the foregoing description and an inspection of the various figures of the accompanying drawings, the improved functionality and applicational convenience will be apparent which~characterize the demisting device for application to the rear window of a passenger car, according to this invention.
`
`, t,,
Claims (8)
1. A method of applying a demisting device to the rear window of a passenger car, comprising:
(i) Securing each of a plurality of aluminum strips to a plurality of co-extensive plastics material films thereby to strengthen the aluminum strips and form a plurality of con-ducting tapes, (ii) securing the tapes via the films in spaced apart arrangement to an adhesive surface of a common carrier material, (iii) providing that surface of the aluminum strips which is remote from the carrier with an adhesive which is such as to enable the tapes to adhere via that surface to a window with a strength greater than that with which the tapes adhere to the carrier, (iv) applying to the window a plurality of self-adhesive members of electrically conductive material, (v) applying the composite arrangement of the tapes and carrier to the window with the adhesive surface of the strips foremost so that selected strip portions adhere to the electrically conductive members and the remaining portions adhere to the window, (vi) peeling the carrier material away to leave the arrangement of the tapes secured to the window, and (vii) connecting the self-adhesive electrically conductive members to the car battery through a switch.
(i) Securing each of a plurality of aluminum strips to a plurality of co-extensive plastics material films thereby to strengthen the aluminum strips and form a plurality of con-ducting tapes, (ii) securing the tapes via the films in spaced apart arrangement to an adhesive surface of a common carrier material, (iii) providing that surface of the aluminum strips which is remote from the carrier with an adhesive which is such as to enable the tapes to adhere via that surface to a window with a strength greater than that with which the tapes adhere to the carrier, (iv) applying to the window a plurality of self-adhesive members of electrically conductive material, (v) applying the composite arrangement of the tapes and carrier to the window with the adhesive surface of the strips foremost so that selected strip portions adhere to the electrically conductive members and the remaining portions adhere to the window, (vi) peeling the carrier material away to leave the arrangement of the tapes secured to the window, and (vii) connecting the self-adhesive electrically conductive members to the car battery through a switch.
2. A method as claimed in claim 1, wherein the tapes are disposed in mutually parallel arrangement on the carrier.
3. A method as claimed in claim 1, wherein the composite arrangement of strengthened aluminum strips and carrier material is applied to said window so as to extend from one side edge to the opposite side edge thereof.
4. A method as claimed in claim 3, wherein the composite arrangement is cut along the side edges of said window.
5. A method as claimed in claim 1 or claim 3, wherein said plurality of self-adhesive electrically conductive members are applied to said window adjacent to side edges thereof.
6. A method as claimed in claims 1, 3 or 4, wherein the plastics material is a polyester.
7. A demisting device for the rear window of a passenger car, the device comprising: a carrier material in the form of a sheet; a series of spaced aluminum strips each being connectable to a source of electric current to heat the strips and each being secured to one surface of a plurality of co-extensive backing films of plastics material to strengthen the strips, the other surface of the films being adhered to the carrier so that the strips and films form a series of conducting tapes on the carrier, the surface of the strips remote from the carrier having thereon an adhesive which is such as to enable the tapes to adhere to a window when the strips are pressed against the window with a strength which is greater than that with which the tapes adhere to the carrier whereby, after pres-sing, the carrier can be peeled from the tapes.
8. A device as claimed in claim 7, in which the plastics material is a polyester.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2241476 | 1976-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1078905A true CA1078905A (en) | 1980-06-03 |
Family
ID=11195978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA284,650A Expired CA1078905A (en) | 1976-10-29 | 1977-08-10 | Demisting device for application to the rear window of a passenger car |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5355829A (en) |
| BE (1) | BE858154A (en) |
| BR (1) | BR7706798A (en) |
| CA (1) | CA1078905A (en) |
| DE (1) | DE7724472U1 (en) |
| ES (1) | ES230515Y (en) |
| FR (1) | FR2369128A1 (en) |
| GB (1) | GB1580666A (en) |
| NL (1) | NL7708849A (en) |
| YU (1) | YU209477A (en) |
| ZA (1) | ZA776134B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4488033A (en) * | 1982-09-23 | 1984-12-11 | Interdynamics, Inc. | Heater assembly for heating glass surface |
| EP0139635A1 (en) * | 1983-04-15 | 1985-05-08 | Ab Mekania-Verken | Heating pad preferably for car seats |
| US4535221A (en) * | 1983-07-01 | 1985-08-13 | Herbert Holsworth | Electrically heated steering wheel with adhesively attached foil strip heating element |
| DE10136549A1 (en) * | 2001-07-27 | 2003-02-20 | Saint Gobain Sekurit D Gmbh | Windscreen heating system for road vehicle has strips of metal foil glued to peripheral area and having conductive bridging pieces to connect adjacent strips |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1948676A1 (en) * | 1969-09-26 | 1971-04-01 | Einheil Inh Josef Thannhuber | Heating film of plastic for electrical - windscreen heater |
| FR2155082A5 (en) * | 1971-10-06 | 1973-05-18 | Henry Rene |
-
1977
- 1977-08-04 DE DE19777724472U patent/DE7724472U1/en not_active Expired
- 1977-08-05 GB GB32901/77A patent/GB1580666A/en not_active Expired
- 1977-08-10 NL NL7708849A patent/NL7708849A/en not_active Application Discontinuation
- 1977-08-10 CA CA284,650A patent/CA1078905A/en not_active Expired
- 1977-08-19 ES ES1977230515U patent/ES230515Y/en not_active Expired
- 1977-08-24 JP JP10066677A patent/JPS5355829A/en active Pending
- 1977-08-26 BE BE180467A patent/BE858154A/en unknown
- 1977-09-02 YU YU02094/77A patent/YU209477A/en unknown
- 1977-09-12 FR FR7727696A patent/FR2369128A1/en active Granted
- 1977-10-11 BR BR7706798A patent/BR7706798A/en unknown
- 1977-10-14 ZA ZA00776134A patent/ZA776134B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2369128A1 (en) | 1978-05-26 |
| YU209477A (en) | 1982-05-31 |
| ZA776134B (en) | 1978-06-28 |
| NL7708849A (en) | 1978-05-03 |
| JPS5355829A (en) | 1978-05-20 |
| ES230515U (en) | 1977-11-01 |
| BE858154A (en) | 1977-12-16 |
| FR2369128B1 (en) | 1980-01-04 |
| ES230515Y (en) | 1978-03-01 |
| BR7706798A (en) | 1978-07-11 |
| DE7724472U1 (en) | 1977-12-22 |
| GB1580666A (en) | 1980-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |