Method and apparatus for polymeric type positive temperature coefficient thermistors
US5806171A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | May 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5313
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.