HYDROGEN DETECTORS

• US 3,567,383 A
• Filed: 10/01/1968
• Issued: 03/02/1971
• Est. Priority Date: 10/01/1968
• Status: Expired due to Term

• Current Assignee: Engelhard Corporation (BASF SE)
• Original Assignee: Leonard R. Rubin, Robert C. Langley
• Inventors: Langley, Robert C., Rubin, Leonard R.
• Application Number:
  US04/764,271
• Time in Patent Office: 882 Days
• US Class Current: 436/3
• CPC Class Codes: G01M 3/045 with electrical detection means
• CPC Class Codes: G01M 3/16 using electric detection means G01M3/045, G01M3/06, G01M3/12, G01M3/20, G01M3/24, G01M3/26 take precedence
• CPC Class Codes: G01M 3/20 using special tracer materials, e.g. dye, fluorescent material, radioactive material
• CPC Class Codes: G01N 27/12 of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid , for detecting components in the fluid

Abstract

A DETECTOR FOR HYDROGEN HAS AS ITS SENSING DEVICE A THIN FILM COMPRISED OF PALLADIUM OR PLATINUM OXIDE WHICH OXIDE ON CONTACT WITH HYDROGEN REDUCES TO THE CORRESPONDING METAL DIFFERENCES IN PROPERTIES, E.G. ELECTRICAL OR OPTI-

CAL, OF THE OXIDE AND METALLIC FILMS ARE USED TO DETECT THE PRESENCE OF HYDROGEN.

Claims