Patents by Inventor Perry Edwards
Perry Edwards 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).
-
Patent number: 10374376Abstract: A divided pulse nonlinear optical source may be generated by combining nonlinear wave generation techniques with pulse division that can divide a parent pulse into N divided pulses, each divided pulse separate temporally. The N divided pulses can be passed into a nonlinear optical medium to generate an output. The output can include at least one output pulse for each divided pulse. The center wavelengths of each output pulse can be tuned so that each may have a center wavelength that is the same as, or differs from, each other output pulse. In some embodiments, the output pulses may be combined to generate the output. The output can be power scalable and wavelength tunable.Type: GrantFiled: May 16, 2018Date of Patent: August 6, 2019Assignees: The Penn State Research Foundation, Atoptix, Inc.Inventors: Zhiwen Liu, Victor Bucklew, Perry Edwards, Chenji Zhang
-
Patent number: 10329753Abstract: A drain cleanout features a flexible drain auger, a mounting section supported solely on a drain pipe, a drum section carried by the mounting section and storing the auger, a rotational connection coupling the mounting section and the drum section, and a rotational drive unit carried by the mounting section and operable to drive rotation of the drum section. A feed mechanism for the flexible auger features a helical slot in the auger cable and a thin disc received in the slot and supported at a fixed longitudinal position in a travel direction along which the drain auger exits and re-enters the drum. Rotation of the auger cable with the drum cause longitudinal displacement of the auger cable in the travel direction. A liquid sensor enables the apparatus to be left in place for automatic self-activation upon detection of liquid back up in the drain pipe.Type: GrantFiled: March 9, 2017Date of Patent: June 25, 2019Inventor: Perry Edward Thompson
-
Publication number: 20180337508Abstract: A divided pulse nonlinear optical source may be generated by combining nonlinear wave generation techniques with pulse division that can divide a parent pulse into N divided pulses, each divided pulse separate temporally. The N divided pulses can be passed into a nonlinear optical medium to generate an output. The output can include at least one output pulse for each divided pulse. The center wavelengths of each output pulse can be tuned so that each may have a center wavelength that is the same as, or differs from, each other output pulse. In some embodiments, the output pulses may be combined to generate the output. The output can be power scalable and wavelength tunable.Type: ApplicationFiled: May 16, 2018Publication date: November 22, 2018Inventors: Zhiwen Liu, Victor Bucklew, Perry Edwards, Chenji Zhang
-
Publication number: 20170321402Abstract: A drain cleanout features a flexible drain auger, a mounting section supported solely on a drain pipe, a drum section carried by the mounting section and storing the auger, a rotational connection coupling the mounting section and the drum section, and a rotational drive unit carried by the mounting section and operable to drive rotation of the drum section. A feed mechanism for the flexible auger features a helical slot in the auger cable and a thin disc received in the slot and supported at a fixed longitudinal position in a travel direction along which the drain auger exits and re-enters the drum. Rotation of the auger cable with the drum cause longitudinal displacement of the auger cable in the travel direction. A liquid sensor enables the apparatus to be left in place for automatic self-activation upon detection of liquid back up in the drain pipe.Type: ApplicationFiled: March 9, 2017Publication date: November 9, 2017Inventor: Perry Edward Thompson
-
Patent number: 9733125Abstract: Embodiments of the invention provide Raman spectroscopy methods and devices that exploit high quality factor (Q) resonators to enhance Raman signal by several orders of magnitude over the signal typically expected for Raman methods. Embodiments typically include one or more resonators, typically microtoroid microresonators. Embodiments also take advantage of Rayleigh scattering using these microresonators. Embodiments may be particularly useful for non-labeled nanoparticle sensing.Type: GrantFiled: September 25, 2013Date of Patent: August 15, 2017Assignees: The Penn State Research Foundation, Washington UniversityInventors: Zhiwen Liu, Lan Yang, Perry Edwards, Corey Janisch, Bo Peng, Sahin Ozdemir
-
Publication number: 20150276481Abstract: Embodiments of the invention provide Raman spectroscopy methods and devices that exploit high quality factor (Q) resonators to enhance Raman signal by several orders of magnitude over the signal typically expected for Raman methods. Embodiments typically include one or more resonators, typically microtoroid microresonators. Embodiments also take advantage of Rayleigh scattering using these microresonators. Embodiments may be particularly useful for non-labeled nanoparticle sensing.Type: ApplicationFiled: September 25, 2013Publication date: October 1, 2015Inventors: Zhiwen Liu, Lan Yang, Perry Edwards, Corey Janisch, Bo Peng, Sahin Ozdemir
-
Patent number: 8861086Abstract: Embodiments of the invention provide a device called a “G-Fresnel” device that performs the functions of both a linear grating and a Fresnel lens. We have fabricated the G-Fresnel device by using PDMS based soft lithography. Three-dimensional surface profilometry has been performed to examine the device quality. We have also conducted optical characterizations to confirm its dual focusing and dispersing properties. The G-Fresnel device can be useful for the development of miniature optical spectrometers as well as emerging optofluidic applications. Embodiments of compact spectrometers using diffractive optical elements are also provided. Theoretical simulation shows that a spectral resolution of approximately 1 nm can be potentially achieved with a millimeter-sized G-Fresnel. A proof-of-concept G-Fresnel-based spectrometer with subnanometer spectral resolution is experimentally demonstrated.Type: GrantFiled: August 12, 2011Date of Patent: October 14, 2014Assignee: The Penn State Research FoundationInventors: Zhiwen Liu, Chuan Yang, Kebin Shi, Perry Edwards
-
Publication number: 20120038918Abstract: Embodiments of the invention provide a device called a “G-Fresnel” device that performs the functions of both a linear grating and a Fresnel lens. We have fabricated the G-Fresnel device by using PDMS based soft lithography. Three-dimensional surface profilometry has been performed to examine the device quality. We have also conducted optical characterizations to confirm its dual focusing and dispersing properties. The G-Fresnel device can be useful for the development of miniature optical spectrometers as well as emerging optofluidic applications. Embodiments of compact spectrometers using diffractive optical elements are also provided. Theoretical simulation shows that a spectral resolution of approximately 1 nm can be potentially achieved with a millimeter-sized G-Fresnel. A proof-of-concept G-Fresnel-based spectrometer with subnanometer spectral resolution is experimentally demonstrated.Type: ApplicationFiled: August 12, 2011Publication date: February 16, 2012Inventors: Zhiwen Liu, Chuan Yang, Kebin Shi, Perry Edwards
-
Patent number: 6702701Abstract: This invention provides the use of a pump to regulate torque in a planetary gear system. The pump is provided with a bore and a valve, which operates to control the flow of fluid within the bore. When the valve is positioned within the bore to block the flow of fluid between the inlet and outlet of the pump, pressure is generated within the pump. The pump pressure is sufficient to generate torque in the planetary gear system.Type: GrantFiled: December 28, 2001Date of Patent: March 9, 2004Assignee: Visteon Global Technologies, Inc.Inventors: Perry Edward Phelan, Joseph Palazzolo, Todd Alan Kendall
-
Patent number: 6688851Abstract: This invention provides the use of a pump to regulate torque in a planetary gear system. The pump is provided with a moveable piston as an end plate. An actuator, attached to the piston, controls the movement of the piston. In one position, the piston is in contact with the internal components of the pump. When the actuator moves the piston, the piston loses contact with the pump, thus allowing a free flow of fluid between the inlet and outlet of the pump. In this configuration, the pump is no longer able to generate the pressure that creates torque in the planetary gear system.Type: GrantFiled: December 28, 2001Date of Patent: February 10, 2004Assignee: Visteon Global Technologies, Inc.Inventors: Perry Edward Phelan, Joseph Palazzolo
-
Patent number: 6663527Abstract: A transfer case system distributes torque between primary and secondary drive trains. The system comprises a planetary gear set having a sun gear, a ring gear, a planetary gear intermeshed with the sun gear and ring gear, and a planetary carrier rotatably connected with the planetary gear. The system also comprises a torque sink connected with the sun gear and a torque input shaft connected with the ring gear and the primary drive train. The torque sink applies a braking force to the rotation of the sun gear in response to instructions from a controller, causing the ring gear to output torque to a secondary drive train.Type: GrantFiled: December 27, 2001Date of Patent: December 16, 2003Assignee: Visteon Global Technologies, Inc.Inventors: Perry Edward Phelan, Joseph Palazzolo
-
Publication number: 20030123998Abstract: This invention provides the use of a pump to regulate torque in a planetary gear system. The pump is provided with a moveable piston as an end plate. An actuator, attached to the piston, controls the movement of the piston. In one position, the piston is in contact with the internal components of the pump. When the actuator moves the piston, the piston loses contact with the pump, thus allowing a free flow of fluid between the inlet and outlet of the pump. In this configuration, the pump is no longer able to generate the pressure that creates torque in the planetary gear system.Type: ApplicationFiled: December 28, 2001Publication date: July 3, 2003Inventors: Perry Edward Phelan, Joseph Palazzolo
-
Publication number: 20030125149Abstract: This invention provides the use of a pump to regulate torque in a planetary gear system. The pump is provided with a bore and a valve, which operates to control the flow of fluid within the bore. When the valve is positioned within the bore to block the flow of fluid between the inlet and outlet of the pump, pressure is generated within the pump. The pump pressure is sufficient to generate torque in the planetary gear system.Type: ApplicationFiled: December 28, 2001Publication date: July 3, 2003Inventors: Perry Edward Phelan, Joseph Palazzolo, Todd Alan Kendall
-
Publication number: 20030125157Abstract: A transfer case system distributes torque between primary and secondary drive trains. The system comprises a planetary gear set having a sun gear, a ring gear, a planetary gear intermeshed with the sun gear and ring gear, and a planetary carrier rotatably connected with the planetary gear. The system also comprises a torque sink connected with the sun gear and a torque input shaft connected with the ring gear and the primary drive train. The torque sink applies a braking force to the rotation of the sun gear in response to instructions from a controller, causing the ring gear to output torque to a secondary drive train.Type: ApplicationFiled: December 27, 2001Publication date: July 3, 2003Inventors: Perry Edward Phelan, Joseph Palazzolo
-
Patent number: 6547479Abstract: A tapered spline 16 which allows members 12, 14 to be selectively coupled and which further allows energy to be selectively communicated by and between these members 12, 14.Type: GrantFiled: February 14, 2001Date of Patent: April 15, 2003Assignee: Ford Global Technologies, Inc.Inventors: William Edmunds Dowling, Jr., David Joe Sell, Perry Edward Phelan, Kin Sang Yeung
-
Publication number: 20020110415Abstract: A tapered spline 16 which allows members 12, 14 to be selectively coupled and which further allows energy to be selectively communicated by and between these members 12, 14.Type: ApplicationFiled: February 14, 2001Publication date: August 15, 2002Inventors: William Edmunds Dowling, David Joe Sell, Perry Edward Phelan, Kin Sang Yeung
-
Patent number: 6227032Abstract: A surface durability roll tester includes a rotatable tapered center roller and a plurality of rotatable tapered pinion rollers engaging the tapered centered roller to simulate gear teeth geometry and kinematics when the tapered center roller and the tapered pinion rollers are rotated. Sliding and Pure rolling motion can be simulated.Type: GrantFiled: December 29, 1998Date of Patent: May 8, 2001Assignee: Ford Global Technologies, Inc.Inventors: David Joe Sell, Perry Edward Phelan