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US3757083A Expired / Lapsed US ⏱️ 0.0 years remaining

Connector for high output quick response radiant heater

Assignee: Armstrong World Industries Inc
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Filing: 1972-02-22
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Granted: 1973-09-04
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Expires: 1992-02-22
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Abstract

Abstract A high intensity, quick response, electrical resistance foil radiant heater is described as having a heating element in the form of a corrugated metal foil ribbon adapted to be heated by electricity to a temperature in the range of about 1,200* to 1,800* F. The heating element is backed by a thermally insulating backing preferably of a ceramic material. A particular connector structure is provided on each end of the foil ribbon to provide a means to fasten power supply leads to the foil ribbon. The connecting means also functions as a means for fastening the ends of the foil ribbon to the backing. The connector structure is composed of two parts, one part constituting a means for receiving electrical leads while the other part constitutes a means for holding the connector in position.

Inventors

  • 👤 G Dietz
  • 👤 N Hager

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 11:25
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02; H05B3/06; H01; H01C; H01C3/00; H01C3/10; H01C3/12

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 223 words
In a high intensity, quick response, electrical resistance, foil radiant heater having a heating element in the form of a transversely corrugated metallic foil ribbon adapted to be heated by the passage of electricity therethrough to a temperature in the range of about 1,200*-1,800* F., a thermally insulating backing for said ribbon, said backing being at least coextensive in area with said ribbon and having a thermal conductivity at 1,500* F. in the range of about 0.07-0.15 Btu/hr-ft-* F., and metallic mounting means intermediate the ends of the ribbon to hold it adjacent said backing, said mounting means generally in supporting contact with said ribbon and being adapted to convey heat from said ribbon to the back of the backing, the improvement comprising a connector on each end of the ribbon, a major portion of said connector being positioned off the plane of the surface of the backing to which the ribbon is fastened and said connector holding said ribbon end in position relative to the backing, said connector being composed of at least two parts which are placed adjacent each other with the foil ribbon therebetween, one part having a portion to which may be connected electrical leads and the other part having a portion which is used in conjunction with the backing to hold the connector and foil ribbon in position.
Claim 2
Dependent Claim 223 words
In a high intensity, quick response, electrical resistance, foil radiant heater having a heating element in the form of a transversely corrugated metallic foil ribbon adapted to be heated by the passage of electricity therethrough to a temperature in the range of about 1,200*-1,800* F., a thermally insulating backing for said ribbon, said backing being at least coextensive in area with said ribbon and having a thermal conductivity at 1,500* F. in the range of about 0.07-0.15 Btu/hr-ft-* F., and metallic mounting means intermediate the ends of the ribbon to hold it adjacent said backing, said mounting means generally in supporting contact with said ribbon and being adapted to convey heat from said ribbon to the back of the backing, the improvement comprising a connector on each end of the ribbon, a major portion of said connector being positioned off the plane of the surface of the backing to which the ribbon is fastened and said connector holding said ribbon end in position relative to the backing, said connector being composed of at least two parts which are placed adjacent each other with the foil ribbon therebetween, one part having a portion to which may be connected electrical leads and the other part having a portion which is used in conjunction with the backing to hold the connector and foil ribbon in position.
Claim 3
Dependent Claim 49 words
The heater of claim 1 wherein the part of the connector which may have electrical leads connected thereto is of a general L-shape with one leg of the L-shape receiving the electrical leads while the second leg of the L-shape is placed adjacent the end of the heating element.
Claim 4
Dependent Claim 61 words
The heater of claim 2 wherein the part of the connector which holds the foil ribbon in position is of a general J-shape with the curved portion of the J-shape being pressed into the back of the backing to hold the connector in place while the other straight portion of the J-shape is placed adjacent the end of the heating element.
Claim 5
Dependent Claim 38 words
The heater of claim 3 wherein the second leg of the L-shape connector part and the straight portion of the J-shape connector part are placed on either side of one end of the ribbon of the heating element.
Claim 6
Dependent Claim 255 words
In a high intensity, quick response, electrical resistance, foil radiant heater having a heating element in the form of a transversely corrugated metallic foil ribbon adapted to be heated by the passage of electricity therethrough to a temperature in the range of about 1,200*-1,800* F., a thermally insulating backing for said ribbon, said backing being at least coextensive in area with said ribbon and having a thermal conductivity at 1, 500* F. in the range of about 0.07-0.15 Btu/hr-fT-* F., and metallic mounting means intermediate the ends of the ribbon to hold it adjacent said backing, said mounting means generally in supporting contact with said ribbon and being adapted to convey heat from said ribbon to the back of the backing, the improvement comprising a connector on each end of the ribbon, a major portion of said connector being positioned off the plane of the surface of the backing to which the ribbon is fastened and said connector holding said ribbon end in position relative to the backing said connector is generally composed of a two-part structure, one part being generally J-shaped and the other part being generally L-shaped, the two parts being fastened to the ribbon with the ribbon therebetween and the J-shaped element being pressed into the back of the backing to hold the connector and ribbon in position and said L-shaped element having means for connecting electrical leads thereto, the two parts are fastened together with one leg of the L-shaped part being placed against the upright leg of the J-shaped part.
Claim 7
Dependent Claim 255 words
In a high intensity, quick response, electrical resistance, foil radiant heater having a heating element in the form of a transversely corrugated metallic foil ribbon adapted to be heated by the passage of electricity therethrough to a temperature in the range of about 1,200*-1,800* F., a thermally insulating backing for said ribbon, said backing being at least coextensive in area with said ribbon and having a thermal conductivity at 1, 500* F. in the range of about 0.07-0.15 Btu/hr-fT-* F., and metallic mounting means intermediate the ends of the ribbon to hold it adjacent said backing, said mounting means generally in supporting contact with said ribbon and being adapted to convey heat from said ribbon to the back of the backing, the improvement comprising a connector on each end of the ribbon, a major portion of said connector being positioned off the plane of the surface of the backing to which the ribbon is fastened and said connector holding said ribbon end in position relative to the backing said connector is generally composed of a two-part structure, one part being generally J-shaped and the other part being generally L-shaped, the two parts being fastened to the ribbon with the ribbon therebetween and the J-shaped element being pressed into the back of the backing to hold the connector and ribbon in position and said L-shaped element having means for connecting electrical leads thereto, the two parts are fastened together with one leg of the L-shaped part being placed against the upright leg of the J-shaped part.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-03 1977-03-05 1977-09-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-03 1981-03-05 1981-09-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-03 1985-03-05 1985-09-04 $7700.00 Window Closed / Lapsed

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