Dennis A Davidson

Address:

8925 Highview Ln, Saint Paul, MN 55125

VIN:

4T1BB46K47U009480

Make:

TOYOTA

Model:

CAMRY HYBRID

Year:

2007

US Patent:

58142789, Sep 29, 1998

Filed:

Apr 26, 1996

Appl. No.:

8/638432

Inventors:

Anthony Robert Maistrovich - Woodbury MN
James Alan Higgins - River Falls WI
Wade Douglas Kretman - St. Paul MN
Dennis Alan Davidson - Maplewood MN
Katrina M. Jackson - Woodbury MN
William Ross Berggren - Woodbury MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G05D 2300
B01J 1000

US Classification:

422109

Abstract:

A reactor system that can safely use general purpose electrical devices and unregulated surface temperature heat sources even though a flammable and/or combustible substance is being processed in the reactor or is within the processing area. The reactor system includes a reaction vessel and at least one process control device proximate the reaction vessel which is a possible ignition source for flammable and combustible materials. A shroud encloses the ignition source within a chamber and the chamber is provided with an inactive environment which is effective for preventing the ignition source from igniting any flammable or combustible substance that may enter the chamber.

US Patent:

58826041, Mar 16, 1999

Filed:

Nov 19, 1997

Appl. No.:

8/971884

Inventors:

Anthony Robert Maistrovich - Woodbury MN
James Alan Higgins - River Falls WI
Wade Douglas Kretman - St. Paul MN
Dennis Alan Davidson - Maplewood MN
Katrina M. Jackson - Woodbury MN
William Ross Berggren - Woodbury MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G05D 2300

US Classification:

422109

Abstract:

A reactor system that can safely use general purpose electrical devices and unregulated surface temperature heat sources even though a flammable and/or combustible substance is being processed in the reactor or is within the processing area. The reactor system includes a reaction vessel and at least one process control device proximate the reaction vessel which is a possible ignition source for flammable and combustible materials. A shroud encloses the ignition source within a chamber and the chamber is provided with an inactive environment which is effective for preventing the ignition source from igniting any flammable or combustible substance that may enter the chamber.