Francis R Kull

US Patent:

6249984, Jun 26, 2001

Filed:

Apr 6, 2000

Appl. No.:

9/544533

Inventors:

Barry E. Barsky - Huntingdon Valley PA
Lester E. Burgess - Swarthmore PA
Francis R. Kull - Quakertown PA

Assignee:

The Fredericks Company - Huntingdon Valley PA

International Classification:

G01C 906
G01C 926

US Classification:

3336615

Abstract:

An electrolytic tilt sensor and a method of assembling the tilt sensor. The tilt sensor includes a metallic envelope comprising a metal container and a metal header welded to the enclosure, hermetically sealing the envelope. The envelope defines a chamber that contains an electrolytic solution and a plurality of electrodes. The electrodes extending through the header from outside of the envelope into the chamber. Each electrode is located in a separate aperture within the header and is insulated from the envelope by an insulator located between the electrode and the header. The method of assembling the tilt sensor includes the steps of placing the electrolytic solution into the container through an opening, engaging the header with the opening and welding the container and header to one another to hermetically seal the envelope.