Patents by Inventor Daryl G James
Daryl G James has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11187594Abstract: An assembly, for example an electrostatic chuck assembly, includes a first member, a second member disposed proximate the first member, a bond layer disposed between the first member and the second member, and at least one optical sensor disposed proximate the bond layer to detect a temperature of the bond layer in a field of view of the at least one optical sensor. The bond layer includes a phosphorescent material and provides a dual function of bonding the second member to the first member and emitting phosphorescent radiation towards the at least one optical sensor. In one form, the first member is an electrostatic chuck member and the second member is a heating plate. The assembly may further include a cooling plate and an additional bond layer disposed between the heating plate and the cooling plate.Type: GrantFiled: March 6, 2019Date of Patent: November 30, 2021Assignee: WATLOW ELECTRIC MANUFACTURING COMPANYInventors: John Patrick Bergen, Daryl G. James
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Patent number: 11041766Abstract: An assembly, for example an electrostatic chuck, is provided including a substrate, an electrostatic chuck, a heating plate, and a bond layer comprising a phosphorescent material. In one form, an optical sensor is disposed proximate the bond layer to detect a temperature of the bond layer in the field of view of the optical sensor. The phosphorescent material is illuminated and the subsequent decay is observed by the optical sensor. From this information, the temperature of the electrostatic chuck and substrate is determined and heating elements may be adjusted by a controller.Type: GrantFiled: July 7, 2015Date of Patent: June 22, 2021Assignee: Watlow Electric Manufacturing CompanyInventors: John Patrick Bergen, Daryl G. James
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Patent number: 10712757Abstract: A process controller is provided and includes at least one optical sensor. The optical sensor includes an optical source is configured to emit an electronic signal toward an object. The process controller further includes a control unit in communication with the at least one optical sensor, wherein the control unit controls a controlled device based on the electronic signal received by the at least one optical sensor. In another form, the optical sensor further includes an optical detector configured to receive the return electronic signal reflected by the object. A system for process control in an elevated radio frequency (RF) environment is also provided and includes a process controller having at least one optical sensor and a control unit in communication with the optical sensor. The optical sensor is disposed within the elevated RF environment and includes an optical detector.Type: GrantFiled: March 21, 2017Date of Patent: July 14, 2020Assignee: Watlow Electric Manufacturing CompanyInventors: William Bohlinger, John P. Bergen, Stanton Hopkins-Breitlow, James Hentges, Jason Houzenga, Gil Ramos, Kurt Peterson, Larry Walters, Daryl G. James
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Publication number: 20190204165Abstract: An assembly, for example an electrostatic chuck assembly, includes a first member, a second member disposed proximate the first member, a bond layer disposed between the first member and the second member, and at least one optical sensor disposed proximate the bond layer to detect a temperature of the bond layer in a field of view of the at least one optical sensor. The bond layer includes a phosphorescent material and provides a dual function of bonding the second member to the first member and emitting phosphorescent radiation towards the at least one optical sensor. In one form, the first member is an electrostatic chuck member and the second member is a heating plate. The assembly may further include a cooling plate and an additional bond layer disposed between the heating plate and the cooling plate.Type: ApplicationFiled: March 6, 2019Publication date: July 4, 2019Applicant: Watlow Electric Manufacturing CompanyInventors: John Patrick BERGEN, Daryl G. JAMES
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Publication number: 20170192443Abstract: A process controller is provided and includes at least one optical sensor. The optical sensor includes an optical source is configured to emit an electronic signal toward an object. The process controller further includes a control unit in communication with the at least one optical sensor, wherein the control unit controls a controlled device based on the electronic signal received by the at least one optical sensor. In another form, the optical sensor further includes an optical detector configured to receive the return electronic signal reflected by the object. A system for process control in an elevated radio frequency (RF) environment is also provided and includes a process controller having at least one optical sensor and a control unit in communication with the optical sensor. The optical sensor is disposed within the elevated RF environment and includes an optical detector.Type: ApplicationFiled: March 21, 2017Publication date: July 6, 2017Applicant: WATLOW ELECTRIC MANUFACTURING COMPANYInventors: William Bohlinger, John P. Bergen, Stanton Hopkins-Breitlow, James Hentges, Jason Houzenga, Gil Ramos, Kurt Peterson, Larry Walters, Daryl G. James
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Publication number: 20160011060Abstract: An assembly, for example an electrostatic chuck, is provided including a substrate, an electrostatic chuck, a heating plate, and a bond layer comprising a phosphorescent material. In one form, an optical sensor is disposed proximate the bond layer to detect a temperature of the bond layer in the field of view of the optical sensor. The phosphorescent material is illuminated and the subsequent decay is observed by the optical sensor. From this information, the temperature of the electrostatic chuck and substrate is determined and heating elements may be adjusted by a controller.Type: ApplicationFiled: July 7, 2015Publication date: January 14, 2016Inventors: John Patrick Bergen, Daryl G. James
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Patent number: 7911591Abstract: An L2F velocimeter comprises a probe for insertion into a fluid, the probe having an open area therein to allow the fluid to pass through. The probe comprises an illumination system to direct a pair of light beams, separated by a distance, through the open area, and a collection system to collect forward scattered light scattered from particles in the fluid. The collection system has an optical axis in common with the illumination system. The velocimeter further comprises an electro optical assembly connected to the probe to provide light to the illumination system, to receive light collected from the collection system, to measure a lapse time in fluctuations of the forward scattered light created by particles passing through the pair of light beams and to calculate the velocity of the fluid based on the lapse time and the separation distance.Type: GrantFiled: December 14, 2005Date of Patent: March 22, 2011Assignee: Photon Control Inc.Inventors: Derek Montgomery, Daryl G. James, David Yue Yan, Ivan Melnyk, Ondrej Mecl
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Publication number: 20090323048Abstract: An L2F velocimeter comprises a probe for insertion into a fluid, the probe having an open area therein to allow the fluid to pass through. The probe comprises an illumination system to direct a pair of light beams, separated by a distance, through the open area, and a collection system to collect forward scattered light scattered from particles in the fluid. The collection system has an optical axis in common with the illumination system. The velocimeter further comprises an electro optical assembly connected to the probe to provide light to the illumination system, to receive light collected from the collection system, to measure a lapse time in fluctuations of the forward scattered light created by particles passing through the pair of light beams and to calculate the velocity of the fluid based on the lapse time and the separation distance.Type: ApplicationFiled: December 14, 2005Publication date: December 31, 2009Applicant: PHOTON CONTROL INC.Inventors: Derek Montgomery, Daryl G. James, David Yue Yan, Ivan Melnyk, Ondrej Mecl
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Publication number: 20040042798Abstract: An optical transceiver comprises a signal transmitter emitting an outgoing communication signal and transmit optics to transmit that includes a transmit telescope. The transceiver additionally comprises receive optics that includes a receive telescope to receive an incoming communication signal and a signal receiver. A dual-axis tilt mirror optically couples the signal transmitter to the transmit optics so that the outgoing communication signal is transmitted by the transmit telescope. The same dual-axis tilt mirror also optically couples the receive optics to the signal receiver so that the incoming communication signal is received by the signal receiver. Thusly configured, the angular orientation of the dual-axis tilt mirror simultaneously controls the reception and transmission orientations of the receive and transmit telescopes, respectively.Type: ApplicationFiled: August 29, 2002Publication date: March 4, 2004Applicant: fSONA COMMUNICATIONS CORPORATIONInventors: Robert L. Kehr, Robert T. Carlson, George Stephen Mecherle, David Rockwell, Pablo Bandera, Vladamir Draganov, Daryl G. James, Derek G. Montgomery
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Patent number: 6667831Abstract: A compact telescope having a modified Gregorian design comprising three reflecting surfaces. The first reflecting surface is concave and is defined by an outer perimeter and an inner perimeter. The curvature of the first reflecting surface defines a focal plane of the first reflecting surface. The second reflecting surface is optically coupled to the first reflecting surface and is disposed between the first reflecting surface and the focal plane defined by the first reflecting surface. The third reflecting surface is concave and is disposed within the inner perimeter of the first reflecting surface. The curvature of the third reflecting surface is greater than the curvature of the first reflecting surface. The third reflecting surface is optically coupled to the first reflecting surface by the second reflecting surface. An aperture is disposed within the third reflecting surface. Thus light incident upon the first reflecting surface is directed through the aperture.Type: GrantFiled: March 7, 2002Date of Patent: December 23, 2003Inventors: Vladimir Draganov, Robert T. Carlson, Robert L Kehr, Derek G Montgomery, Pablo Bandera, Daryl G James
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Publication number: 20030169493Abstract: A compact telescope having a modified Gregorian design comprising three reflecting surfaces. The first reflecting surface is concave and is defined by an outer perimeter and an inner perimeter. The curvature of the first reflecting surface defines a focal plane of the first reflecting surface. The second reflecting surface is optically coupled to the first reflecting surface and is disposed between the first reflecting surface and the focal plane defined by the first reflecting surface. The third reflecting surface is concave and is disposed within the inner perimeter of the first reflecting surface. The curvature of the third reflecting surface is greater than the curvature of the first reflecting surface. The third reflecting surface is optically coupled to the first reflecting surface by the second reflecting surface. An aperture is disposed within the third reflecting surface. Thus light incident upon the first reflecting surface is directed through the aperture.Type: ApplicationFiled: March 7, 2002Publication date: September 11, 2003Inventors: Vladimir Draganov, Robert T. Carlson, Robert L. Kehr, Derek G. Montgomery, Pablo Bandera, Daryl G. James