Metal working – Method of mechanical manufacture – Electrical device making
Patent
1978-01-26
1979-08-14
Mehr, Milton S.
Metal working
Method of mechanical manufacture
Electrical device making
29621, 29619, 427101, 338309, H01C 1700, H01C 700
Patent
active
041640675
ABSTRACT:
A method of manufacturing a resistor element for fixed or variable resistors. The element comprises an insulating substrate injection molded from ceramic-glass frit material and organic binder and lubricating material and layers of resistive material and conducting termination material deposited on the unfired substrate. The organic materials in the substrate and its termination and resistive layers are substantially "burned out" prior to simultaneously co-firing the substrate and the deposited resistive and termination layers.
The fixed resistor element may be molded as a half-shell arranged to receive leads extending from opposite ends thereof and attached by soldering to the termination areas. A substantially identical cover member molded and fired from the same material as the substrate is adhesively attached to the substrate to complete the resistor.
The invention further contemplates the provision of attaching respective leads by means of forming a solder ball of low melting solder on one end of a solder coated lead and fastening this end by means of a hydrogen torch to the portion of the fixed resistor subassembly containing the termination material.
REFERENCES:
patent: 2910766 (1959-11-01), Pritikin
patent: 2924540 (1960-02-01), D'Andrea
patent: 3056937 (1962-10-01), Pritikin
patent: 3103067 (1963-09-01), Dixon
patent: 3390452 (1968-07-01), Huang
patent: 3444501 (1969-05-01), Delaney et al.
patent: 3584379 (1971-06-01), Loose
patent: 3699650 (1972-10-01), Cocca
patent: 3914514 (1975-10-01), MacKenzie et al.
patent: 4057777 (1977-11-01), Merz et al.
patent: 4064475 (1977-12-01), Kouchich
patent: 4076894 (1978-02-01), Langley
Brandt Ivan L.
Denes Oscar L.
von Alten Theodor
Voss Richard E.
Allen-Bradley Company
Ericsen Arnold J.
Mehr Milton S.
LandOfFree
Method of manufacturing electrical resistor element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing electrical resistor element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing electrical resistor element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1372935