Bacharach, Inc.

American Intell-sensors Corporation

Lymperios N Yannopoulos

Richard L Grace

Marc A Portnoff

Alberto M Guzman

John E Tozier

Paul D Runco

Robert A Peters

A halogen gas detector comprises a coil comprising an oxidation-resistant metal wire with a nonreactive oxide coating wound into a double helix defining a cylindrical space, a conductive metal pin positioned within the cylindrical space making no contact with the coil, finely divided sintered in place sodium titanate filling the space between the coil and the pin.

Halogen gas detector

A gas sensing thick film is positioned on an insulating substrate in contact with a pair of electrodes. A non-porous glass layer surrounds the film to stabilize it on the substrate. A heating element maintains the film at a preselected elevated temperature. The gas sensing thick film has a response characteristic for a preselected target gas to be detected which is enhanced by impregnating the film with platinum or palladium chlorine free compounds. The response characteristic of the gas sensing film is further increased by promoting combustion of interference gases on an outer filter layer fabricated of either conductive or nonconductive material. The incorporation of an insulating material between the gas sensing film and the outer filter layer also serves to increase the relative response of the gas sensing film to a preselected target gas.

Apparatus for simultaneous detection of target gases

Growing community of inventors

Pittsburgh, PA, United States of America

Lymperios N Yannopoulos