Method and apparatus for polymeric type positive temperature coe

Details Method and apparatus for polymeric type positive temperature coe Method and apparatus for polymeric type positive temperature coe

1996-05-24

1998-09-15

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29593, 29729, H01C 702, G01R 3101

Patent

active

058061711

ABSTRACT:
Apparatus and method for producing polymeric type positive temperature coefficient resistor devices takes a strip of PTC material (100) preferably produced by a continuous extrusion and lamination process and cuts discrete devices (10) from the strip. The cutter (42) cuts the devices to a precise predetermined length and the resistance of each device is measured as it is cut. The predetermined length of each device to be cut is determined based on a desired resistance value of the device and the length and measured resistance of the just cut device. Printing station (55) adds indicia to the devices indicating relevant information about the devices.

REFERENCES:
patent: 4081898 (1978-04-01), Taylor, Jr. et al.
patent: 4327351 (1982-04-01), Walker
patent: 4463337 (1984-07-01), H.ang.kanson
patent: 5353699 (1994-10-01), Tamura

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