JOHN W HOLTZ
Engineers in Pittsburgh, PA
License number
Pennsylvania PE054896E
Category
Engineers
Type
Professional Engineer
Address
Address
Pittsburgh, PA 15208
Professional information
Mechanical Engineer &Amp; Finite Element (Fea) Specialist
Position:
Senior Analytical Engineer at Tenova Core
Location:
Greater Pittsburgh Area
Industry:
Mechanical or Industrial Engineering
Work:
Tenova Core
- Pittsburgh since Mar 2013
-
Senior Analytical Engineer
Autodesk
- Greater Pittsburgh Area Feb 2006 - Nov 2012
-
Senior User Experience Designer
ALGOR, Inc
Dec 1997 - Feb 2006
-
Application Engineer
NKK Steel Engineering
- Greater Pittsburgh Area Oct 1993 - Nov 1997
-
Senior Mechanical Engineer
Italimpianti of America
- Greater Pittsburgh Area Sep 1988 - Oct 1993
-
Design Analysis Engineer
Italimpianti of America
- Greater Pittsburgh Area May 1985 - Sep 1988
-
Process Engineer
Education:
University of Pittsburgh
BS, Mechanical Engineering
BS, Mechanical Engineering
Interests:
Astronomy
John Holtz - Pittsburgh, PA
Work:
Autodesk, Inc
Senior User Experience Engineer Algor, Inc - Pittsburgh, PA
Product Designer & Documentation ALGOR, Inc. - Pittsburgh, PA
Application Engineer NKK-Steel Engineering, Inc - Mars, PA
Senior Mechanical Engineer Italimpianti of America, Inc - Coraopolis, PA
Design Analysis Engineer Italimpianti of America - Pittsburgh, PA
Process Engineer
Senior User Experience Engineer Algor, Inc - Pittsburgh, PA
Product Designer & Documentation ALGOR, Inc. - Pittsburgh, PA
Application Engineer NKK-Steel Engineering, Inc - Mars, PA
Senior Mechanical Engineer Italimpianti of America, Inc - Coraopolis, PA
Design Analysis Engineer Italimpianti of America - Pittsburgh, PA
Process Engineer
Education:
University of Pittsburgh
Bachelor of Science in Mechanical Engineering
Bachelor of Science in Mechanical Engineering
Polymerized Crystalline Colloidal Array Sensor Methods
US Patent:
5854078, Dec 29, 1998
Filed:
Mar 17, 1997
Appl. No.:
8/819240
Inventors:
Sanford A. Asher - Pittsburgh PA
John H. Holtz - Pittsburgh PA
John H. Holtz - Pittsburgh PA
Assignee:
University of Pittsburgh - Pittsburgh PA
International Classification:
G01N 3300
US Classification:
436133
Abstract:
Novel sensor devices composed of a crystalline colloidal array (CCA) polymerized in a hydrogel are disclosed. The hydrogels are characterized as being capable of shrinking and swelling in response to specific stimuli applied thereto. As the hydrogels shrink or swell, the lattice structure of the CCA embedded therein changes, thereby changing the wavelength of light diffracted by the CCA. Thus by monitoring the change in diffracted wavelength, the concentration of a stimulus is determined. The gels can be modified to sense numerous different stimuli. The sensor devices are specific in that they are modified to react with only one species or family of species. These sensors have various applications in areas including, for example, environmental and chemical systems, chemomechanical systems, sensor devices and medical diagnostic tools. Various methods for making and using these devices are also disclosed.
Polymerized Crystalline Colloidal Array Sensors
US Patent:
5898004, Apr 27, 1999
Filed:
Nov 6, 1996
Appl. No.:
8/743816
Inventors:
Sanford A. Asher - Pittsburgh PA
John H. Holtz - Pittsburgh PA
John H. Holtz - Pittsburgh PA
Assignee:
University of Pittsburgh of the Commonwealth System of Higher Education - Pittsburgh PA
International Classification:
G01N 33544, G01N 33551, G02B 524, G01J 318
US Classification:
436518
Abstract:
Novel sensor devices composed of a crystalline colloidal array (CCA) polymerized in a hydrogel are disclosed. The hydrogels are characterized as being capable of shrinking and swelling in response to specific stimuli applied thereto. As the hydrogels shrink or swell, the lattice structure of the CCA embedded therein changes, thereby changing the wavelength of light diffracted by the CCA. Thus by monitoring the change in diffracted wavelength, the concentration of a stimulus is determined. The gels can be modified to sense numerous different stimuli. The sensor devices are specific in that they are modified to react with only one species or family of species. These sensors have various applications in areas including, for example, environmental and chemical systems, chemomechanical systems, sensor devices and medical diagnostic tools. Various methods for making and using these devices are also disclosed.
Polymerized Crystalline Colloidal Arrays
US Patent:
6187599, Feb 13, 2001
Filed:
Jul 7, 1998
Appl. No.:
9/111610
Inventors:
Sanford A. Asher - Pittsburgh PA
John H. Holtz - Pittsburgh PA
John H. Holtz - Pittsburgh PA
Assignee:
University of Pittsburgh - Pittsburgh PA
International Classification:
G01N 33545, G01N 3366, G01J 318
US Classification:
436531
Abstract:
Novel sensor devices composed of a crystalline colloidal array (CCA) polymerized in a hydrogel are disclosed. The hydrogels are characterized as being capable of shrinking and swelling in response to specific stimuli applied thereto. As the hydrogels shrink or swell, the lattice structure of the CCA embedded therein changes, thereby changing the wavelength of light diffracted by the CCA. Thus by monitoring the change in diffracted wavelength, the concentration of a stimulus is determined. The gels can be modified to sense numerous different stimuli. The sensor devices are specific in that they are modified to react with only one species or family of species. These sensors have various applications in areas including, for example, environmental and chemical systems, chemomechanical systems, sensor devices and medical diagnostic tools. Various methods for making and using these devices are also disclosed.