Michael J Duncan

US Patent:

6901135, May 31, 2005

Filed:

Aug 28, 2003

Appl. No.:

10/651272

Inventors:

Timothy R. Fox - Chicago IL, US
David T. Nisius - Des Plaines IL, US
Michael T. Duncan - Elgin IL, US

Assignee:

Bio-Imaging Research, Inc. - Lincolnshire IL

International Classification:

H05G001/64

US Classification:

378 988, 25037011, 348294

Abstract:

A method and apparatus are provided for extending a dynamic range of an X-ray imaging system. The method includes the steps of detecting a plurality of X-ray beams, amplifying each of the plurality of detected X-ray beams using a first gain value, amplifying each of the plurality of detected X-ray beams using a second gain value, and forming an X-ray image from the detected X-ray beams amplified by the first gain value and from the detected X-ray beams amplified by the second gain value.

US Patent:

50551124, Oct 8, 1991

Filed:

Oct 30, 1989

Appl. No.:

7/428997

Inventors:

Michael P. Duncan - Lockport IL
Alexander M. Kulinowski - St. Louis MO

Assignee:

Ethyl Petroleum Additives, Inc. - St. Louis MO

International Classification:

C10L 118
C10L 1000

US Classification:

44445

Abstract:

A diesel fuel composition comprising a major amount of a hydrocarbon based compression ignition fuel and a minor particulate-reducing amount of an aliphatic 1,2-diol.

US Patent:

H12386, Oct 5, 1993

Filed:

Mar 8, 1993

Appl. No.:

8/028706

Inventors:

Michael R. Duncan - Yorkville IL

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B60G 100

US Classification:

280688

Abstract:

Vehicles that are frequently operated in "off road" conditions are normally equipped with a means by which some form of oscillation is provided to accommodate the uneven terrain over which it traverses. In some instances, the stability of the vehicle is inadequate while in other instances the stability is acceptable; however, the service life of the particular design is in question. The axle suspension 10 of the present invention is mounted to the vehicle frame 12 in a manner whereby the various types of forces encountered during the operation of the vehicle are directed to specific areas of the mounting. Being so directed, the mounting members 38 and 52, utilized in these specific areas of mounting, may be selected to best accommodate the type of loading that will be applied in that area.

US Patent:

20140294147, Oct 2, 2014

Filed:

Mar 18, 2014

Appl. No.:

14/218699

Inventors:

- Palo Alto CA, US
Kevin Holt - Chicago IL, US
Robert E. Drubka - Scottsdale AZ, US
John Stammetti - Las Vegas NV, US
Michael Z. Duncan - Elgin IL, US
Timothy R. Fox - Chicago IL, US
David Nisius - Des Plaines IL, US
Martin Hu - Deerfield IL, US

Assignee:

Varian Medical Systems, Inc. - Palo Alto CA

International Classification:

G01V 5/00

US Classification:

378 57

Abstract:

Radiation scanning systems providing multiple views of an object in different planes and a reconstruction algorithm for reconstructing quasi-three-dimensional images from a limited number of views. A system may include bend magnets to direct accelerated charged particles to multiple targets in different viewing locations. Another system collimates radiation generated by a plurality of radiation sources into multiple beams for scanning an object at multiple angles. The object may be a cargo container, for example. The reconstruction algorithm uses an optimization algorithm and imaging and feasibility models to reconstruct quasi-three-dimensional images from the limited number of views.