Patent · US Expired

Positive temperature coefficient thermistor device

US5142265A · kind A · utility

34Cited by
1References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 12, 1991
Grant dateAug 25, 1992
Priority date
Expiry dateMar 12, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01C1/022
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A positive temperature coefficient thermistor device includes an insulating casing housing a pair of positive temperature coefficient thermistors. Each of the inner surfaces of a pair of opposed walls consisting of the side walls and the top and bottom walls of the case is provided with a recess formed of at least one pair of tapered surfaces sloping from the walls provided with a pair of electrodes towards a common electrode located in the center. The thermistors are arranged so that the rim thereof has at least a one-point contact with the tapered surfaces of the recesses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.