Mark E Mccoy

US Patent:

20130157040, Jun 20, 2013

Filed:

Dec 14, 2012

Appl. No.:

13/715189

Inventors:

Christopher A. Petorak - Carmel IN, US
Don J. Lemen - Indianapolis IN, US
Albert Feuerstein - Carmel IN, US
Mark McCoy - Indianapolis IN, US

International Classification:

B05B 7/20
C23C 4/12

US Classification:

428323, 427446, 239290

Abstract:

A system and method for producing thermal spray coatings on a substrate from a liquid suspension is disclosed. The disclosed system and method include a thermal spray torch for generating a plasma and a liquid suspension delivery subsystem for delivering a flow of liquid suspension with sub-micron particles to the plasma to produce a plasma effluent. The liquid suspension delivery subsystem comprises an injector or nozzle which can produce an inert or reactive gas sheath partially or fully surrounding the plasma effluent. A sheath can also be used to isolate injection of the liquid suspension. A gas assist stream can also be employed at or near the suspension injection point. The shroud, sheath or gas assist technique can retain the sub-micron particles entrained within the plasma effluent and substantially prevent entrainment of ambient gases into the plasma effluent. The liquid suspension delivery subsystem can be arranged as an axial injection system, a radial internal injection system or an external radial injection system.

US Patent:

48662410, Sep 12, 1989

Filed:

Mar 30, 1988

Appl. No.:

7/175240

Inventors:

William G. Doherty - Lebanon IN
Mark McCoy - Indianapolis IN
David J. Sharp - Indianapolis IN

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

B23K 900

US Classification:

21912147

Abstract:

An apparatus for coating the internal surface of a tubular object having an irregular internal surface which comprises a combination of arms which enable the torch to be in the optimal coating position as it moves over and coats the internal surface.