Machine for laser scribing and winding metallized film capacitor

Details Machine for laser scribing and winding metallized film capacitor Machine for laser scribing and winding metallized film capacitor

1978-12-28

1980-10-28

Hall, Carl E.

Metal working

Electric condenser making

Solid dielectric type

219121LG, 219121LM, 242 561, 242 7552, H01G 432

Patent

active

042298652

ABSTRACT:
A pair of very thin dielectric films, each completely metallized on one side, are positively advanced over a pair of drums of a machine while the films are laser scribed and slit to form two sets of film strips each of which has a laser scribed capacitor plate formed thereon. The film strips forcibly emanating from the drums pass through a number of tension responsive devices and are wound on one of a pair of successively positioned takeup split mandrels. A compensating mechanism is included in one of the drum drives to vary the speed of the drums to compensate for the difference in diameters of the wound convolutions of one set of film strips with respect to the other set so that a succession of capacitor blanks are snugly wound with consistent geometric size and capacitance value.

REFERENCES:
patent: 2435441 (1948-03-01), Gronse
patent: 2569414 (1951-09-01), Godley, 2nd et al.
patent: 2716180 (1955-08-01), Dubilier
patent: 3547369 (1970-12-01), Potucek
patent: 3786224 (1974-01-01), Heywang et al.
patent: 3787690 (1974-01-01), Neff
patent: 3815188 (1974-06-01), San Pietro
patent: 3939440 (1976-02-01), Berg et al.
patent: 4003112 (1977-01-01), Miller et al.
"2-Lead DIP Ceramic Caps by AVX"; Electronic News; 10-4-1976; p. 48.

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