John N Conrad

US Patent:

39947807, Nov 30, 1976

Filed:

Oct 17, 1975

Appl. No.:

5/623416

Inventors:

Donald L. Klass - Barrington IL
Sambhunath Ghosh - Homewood IL
John R. Conrad - Downers Grove IL

Assignee:

Institute of Gas Technology - Chicago IL

International Classification:

C12B 100

US Classification:

195 13

Abstract:

An improved anaerobic digestion of organic biomass by rupturing cells of microorganisms present in a digested biomass or untreated biomass fraction undergoing digestion to obtain a treated biomass fraction having liberated indigenous enzymes in place; and contacting such treated biomass fraction with an untreated biomass fraction so the combined fractions undergo improved anaerobic digestion. The cells in the untreated biomass portion are ruptured by conventional means such as sonication, and about equal volumes of the fractions are preferably combined under conditions of conventional anaerobic digestion.

US Patent:

42083877, Jun 17, 1980

Filed:

Aug 20, 1976

Appl. No.:

5/716160

Inventors:

Donald L. Klass - Barrington IL
John R. Conrad - Downers Grove IL

Assignee:

Institute of Gas Technology - Chicago IL

International Classification:

C01B 1700

US Classification:

423243

Abstract:

Sulfur dioxide is removed from waste gases such as stack gases by contacting the gas stream with free tertiary amines having basic strengths greater than about pK 5 to form a coordinate covalent complex of the amine and the sulfur dioxide. The sufficiently stable complex is than thermally regenerated to liberate the sulfur dioxide in one stream, to provide the residual gases in another stream, and to provide the regenerated tertiary amine for collection and reuse in a subsequent sulfur dioxide cleanup step. The coordinate covalent complex reacts with even very small concentrations of sulfur dioxide to effectively reduce the sulfur dioxide to detectable zero levels. The presence of carbon dioxide in waste gas streams does not interfere with the efficient cleanup because the selected tertiary amine does not react with the carbon dioxide.

US Patent:

46305300, Dec 23, 1986

Filed:

May 9, 1984

Appl. No.:

6/608382

Inventors:

William R. Eckstrom - Dolton IL
John R. Conrad - Westlake Village CA

Assignee:

Travel-Aire, Inc. - Dolton IL

International Classification:

B60H 306

US Classification:

98 211

Abstract:

A filtering unit for a bus, the unit comprising one outer housing of a size to fit between the row of seats in the bus and a forwardly facing wall of a bus lavatory behind the seats, the housing having air inlet and air outlet openings for communication with ducts opening in upper and lower portions of the lavatory. The housing comprises a main housing body with an interior horizontal passageway of consistent cross sectional shape extending parallel to the rear of the outer housing, the main housing body having a horizontally facing opening at the outer end thereof which is covered by a panel which is movable to expose said opening, and a drawer unit slidable into or removable from said passageway through said opening. The drawer contains at least an air filter for removing at least lavatory odor-causing gaseous and particle materials from the air stream passing therethrough and an air circulating fan and drive motor therefor.

Address:

2307 Riv Rdg Dr, West Des Moines, IA 50265

Phone:

5152269618

VIN:

2G1WT58K379199557

Make:

CHEVROLET

Model:

IMPALA

Year:

2007