Patent · US Expired

Hermetically sealed magnetic sensor

US4847557A · kind A · utility

34Cited by
2References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 10, 1988
Grant dateJul 11, 1989
Priority date
Expiry dateMar 10, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49075
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A hermetically sealed magnetic sensor for detecting variations in a magnetic field has a sensor element with an output terminal for detecting variations in the magnetic field and generating a signal. An output wire is connected with one end to the terminal for outputting a respective signal from the sensor element. A case having an opening on a side close to the output wire contains the sensor element. A first thermosetting resin fills the case for covering the sensor element. A second thermoplastic resin hermetically seals the opening in the case.

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