Electrical resistors – Zigzag or sinuous resistance element – Cylindrical
Patent
1991-10-09
1993-07-27
Lateef, Marvin M.
Electrical resistors
Zigzag or sinuous resistance element
Cylindrical
338 61, 338322, 338306, 29620, 29621, H01C 310
Patent
active
052313727
ABSTRACT:
A method of making a compact high-voltage, high-power, thick-film screen-printed cylindrical resistor. A V-serpentine pattern is formed and adapted to fit on a cylindrical substrate having a diameter range of about 1/10 inch to about 1/2 inch. Such pattern is caused to have adjacent sections at a small acute angle to each other. Furthermore, the pattern is caused to have gaps at the open ends of the loops that are substantially wider than the gaps at the closed ends of the loops. In addition, the pattern is caused to have a sufficient number of undulations, and sufficient gap size, to achieve a predetermined voltage rating. Thereafter, the height of the pattern is changed to achieve a voltage coefficient substantially corresponding to the desired voltage coefficient. Furthermore, the resistive film material is altered to cause it to have a different resistivity, said latter resistivity being such that the same resistance value is achieved. The invention further comprises a cylindrical screen-printed thick-film resistor, and a method of balancing inductance against voltage/power rating.
REFERENCES:
patent: 2360263 (1944-10-01), Osterheld
patent: 2838639 (1958-06-01), Planer et al.
patent: 3858147 (1974-12-01), Caddock
patent: 3880609 (1975-04-01), Caddock
patent: 3881162 (1975-04-01), Caddock
patent: 4072921 (1978-02-01), Sacchetti
patent: 4132971 (1979-01-01), Caddock, Jr.
patent: 4159459 (1979-06-01), Sease et al.
patent: 4670734 (1987-06-01), Caddock
patent: 4697335 (1987-10-01), Peterson et al.
patent: 4766410 (1988-08-01), Caddock, Jr.
patent: 4866411 (1989-09-01), Caddock
Caddock Electronics, Inc.
Gausewitz Richard L.
Lateef Marvin M.
LandOfFree
Method of manufacturing high-voltage and/or high-power thick-fil 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 high-voltage and/or high-power thick-fil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing high-voltage and/or high-power thick-fil will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2344696