Metal working – Method of mechanical manufacture – Electrical device making
Patent
1978-12-04
1980-05-20
Crane, Daniel C.
Metal working
Method of mechanical manufacture
Electrical device making
29613, 29619, 219528, H05B 336
Patent
active
042031982
ABSTRACT:
A heating panel array is of a "sandwich" configuration and employs a serpentine resistive array fabricated from a metal foil and disposed between two sheets of fiber glass cloth, all of which are secured together by a binder having stable properties in the presence of heat generated when said array is energized. The binder contains colloidal silica spheres of submicron diameter. Methods for fabricating the panel are described which enable fabrication of a multiplicity of panels using selective etching and silk screening techniques. The fabrication process assures the absence of impurities in the heater panel construction and in conjunction with the binder enable the panel to operate without smoking and aromatic problems.
REFERENCES:
patent: 2777930 (1957-01-01), Nathanson
patent: 3417229 (1968-12-01), Shomphe
patent: 3495328 (1970-02-01), Ziver
patent: 3584198 (1971-06-01), Doi
patent: 3774299 (1973-11-01), Sato
patent: 3824521 (1974-07-01), Horii
Hackett Barrie H.
Wissley Rudolph W.
Crane Daniel C.
Crosby Gene P.
International Telephone and Telegraph Corporation
O'Halloran John T.
Walsh Robert A.
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