The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 1998
Filed:
May. 24, 1996
Applicant:
Inventor:
Patrick Shui-Chung Wang, Repulse Bay, HK;
Assignee:
Johnson Electric S.A., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ; G01R / ;
U.S. Cl.
CPC ...
29612 ; 29593 ; 29729 ;
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.