Albert A Hall

US Patent:

39760553, Aug 24, 1976

Filed:

Nov 27, 1974

Appl. No.:

5/527033

Inventors:

Robert Paul Monter - Centerville OH
Albert Moore Hall - Centerville OH
James Vernon Cartmell - Dayton OH

Assignee:

NDM Corporation - Dayton OH

International Classification:

A61B 504

US Classification:

128 206E

Abstract:

An electrode for sensing signals such as electrocardiograph signals used with an electrolyte is formed from an electrically conductive but galvanicallly inactive material having a galvanically active conductive material at the electrolyte interface. Examples are described including a body formed from a plastic or other non-conductive binder rendered conductive by inclusion of finely divided conductive carbon and having one or more metal particles anchored to the surface of the body which contacts the electrolyte.

US Patent:

41194560, Oct 10, 1978

Filed:

Jan 31, 1977

Appl. No.:

5/763905

Inventors:

Donald Brian Roach - Columbus OH
John Andrew Van Echo - Columbus OH
Albert Mangold Hall - Columbus OH

Assignee:

Steel Founders' Society of America - Rocky River OH

International Classification:

C22C 3000
C22C 1905
C22C 3844
C22C 3850

US Classification:

75122

Abstract:

A high-strength, heat-resistant alloy is provided which comprises, in weight percent, about 0. 2 to about 0. 75 percent carbon, from about 20. 0 to about 30. 0 percent chromium, from about 15. 0 to about 60. 0 percent nickel, up to about 2. 0 percent manganese, up to about 2. 5 percent silicon, from about 3. 0 to about 10. 0 tungsten, from about 0. 1 to about 1. 0 zirconium, with the balance being iron plus incidental impurities.