Life Safety Distribution Ag

Honeywell International Inc.

Honeywell Analytics Limited

Neils Richard Stewart Hansen

John Chapples

Paul Christopher Westmarland

Martin Jonathan Kelly

Stuart Alistair Harris

Arkadiusz Edward Majczak

Alan Daniel Spong

Richard Alan Sellis

Embodiments of the disclosure relate to capillary controlled gas sensors comprising a top cap assembly, wherein the top cap assembly is operable to reduce the effects of condensation and pressure changes on the effectiveness of the gas sensor. The top cap assembly comprises a capillary controlled gas flow path, a bulk flow control assembly, and a raised boss surrounded by a moat.

Gas sensors with structure to resist signal losses due to condensation

A sensor with a sensor housing or body, a plastic molded table positioned in the sensor housing; and a counter electrode carried on a first end of the table.

Support for electrode stack and provision for venting of a gas sensor using an internally mounted table

An electrochemical detector includes a carbon based element located between a separator and a current collector of an adjacent electrode. Elements can take the form of a carbon fabric located between the separator and the collector, or a linear, or, circular carbon deposit on a surface of the separator adjacent to the respective current collector. Other conductive coatings including gold, platinum or transition metals, as well as carbon, can be deposited directly onto a porous substrate, such as a masked separator material.

Electrochemical gas detector with carbon element

A process is described for manufacturing gas diffusion electrodes, which process comprises: (a) treating an area of a pre-shrunk porous hydrophobic substrate so as to restrict the slurry deposited in step b) to the said area, preferably by forming a well in the area and/or treating the substrate in the area to render it less hydrophobic, e.g. by plasma treating the area; (b) dispensing a slurry of catalyst onto the said area, (c) removing liquid from the dispensed slurry, (d) treating the dried slurry to remove organic materials and e) cutting the catalyst and the underlying portion of substrate from the rest of the substrate.

Growing community of inventors

Poole, United Kingdom

Neils Richard Stewart Hansen