Variable watt density layered heater

Details Variable watt density layered heater Variable watt density layered heater

2006-11-07

2006-11-07

Evans, Robin O. (Department: 3742)

Electric heating

Heating devices

With heating unit structure

C219S424000, C219S538000, C219S219000, C219S552000

Reexamination Certificate

active

07132628

ABSTRACT:
A layered heater is provided with a resistive layer having a resistive circuit pattern, the resistive circuit pattern defining a length and a thickness, wherein the thickness varies along the length of the resistive circuit pattern for a variable watt density. The present invention also provides layered heaters having a resistive circuit pattern with a variable thickness along with a variable width and/or spacing of the resistive circuit pattern in order to produce a variable watt density. Methods are also provided wherein the variable thickness is achieved by varying a dispensing rate of a conductive ink used to form the resistive circuit pattern, varying the feed rate of a target surface relative to the dispensing of the ink, and overwriting a volume of conductive ink on top of a previously formed trace of the resistive circuit pattern.

REFERENCES:
patent: 2629166 (1953-02-01), Marsten et al.
patent: 3010850 (1961-11-01), Colbert et al.
patent: 3851150 (1974-11-01), Von Holzen
patent: 4196411 (1980-04-01), Kaufman
patent: 4734563 (1988-03-01), Lloyd
patent: 4764665 (1988-08-01), Orban et al.
patent: 4882466 (1989-11-01), Friel
patent: 5087804 (1992-02-01), McGaffigan
patent: 5424767 (1995-06-01), Alavizadeh et al.
patent: 5444228 (1995-08-01), Gelus
patent: 5504307 (1996-04-01), Hayashi et al.
patent: 5665262 (1997-09-01), Hajaligol et al.
patent: 5742223 (1998-04-01), Simendinger et al.
patent: 5808178 (1998-09-01), Rounbehler et al.
patent: 5866194 (1999-02-01), Ogawa et al.
patent: 5973296 (1999-10-01), Juliano et al.
patent: 6575729 (2003-06-01), Godwin et al.
patent: 6602345 (2003-08-01), Schupp et al.
patent: 2003/0231415 (2003-12-01), Puerto
patent: 2005/0141845 (2005-06-01), Mori et al.
patent: 3334744 (1984-04-01), None
patent: 1021064 (2000-07-01), None
patent: 8213202 (1996-08-01), None

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