Electrical resistors – Ribbon resistance element bent or curved on flat side – Zigzag or sinuous
Patent
1991-06-05
1992-10-27
Lateef, Marvin M.
Electrical resistors
Ribbon resistance element bent or curved on flat side
Zigzag or sinuous
338 51, 338281, 338321, 338317, 338290, H01C 101, H01C 300
Patent
active
051593106
ABSTRACT:
A heat dissipating resistor grid has a rectangular or annular frame including side members carrying blocks or panels of insulating material having cavities in their inner surfaces. The resistor element is a zigzag strip formed from individual flat lengths of resistance material, each length having offset ends in opposite directions, adjoining offset ends forming a sandwich with a conductive support strip which extends beyond the offset end and terminates in projections which mate with the cavities in the insulating material. The support strip may extend into the space between the adjoining strips of resistance material forming a heat sink therein. The projecting ends of the support strip may be flat lengths, may be cut into tabs, may be formed into hollow cylinders in one piece with the support strip, may be solid cylindrical studs affixed to the support strip, or solid rod bent into U-shape with the base inside the offset ends. The insulating blocks may fit into cutouts in the frame and lock there by lateral movement.
REFERENCES:
patent: 4051452 (1977-09-01), Luy
patent: 5045831 (1991-09-01), Kirilloff et al.
patent: 5049851 (1991-09-01), Kirilloff et al.
Benson William A.
Cummins Robert
Dawson Richard S.
Kirilloff Victor V.
Ingersoll Buchanan
Lateef Marvin M.
Mosebach Manufacturing Company
Raynovich, Jr. George
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