Patents by Inventor David E. Herbert

David E. Herbert 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: 11304958
    Abstract: Described herein is the development of synthetic routes to produce a wide variety of substituted phenanthridines, specifically, multidentate phenanthridine-containing ligand frameworks capable of anchoring to Pt via more than one binding site and with the phenanthridinyl moiety co-planar to the coordination plane of Pt. The multidentate chelation is designed to attenuate the reactivity of the platinum complex in vivo, and ultimately help mitigate side effects. In addition, the geometry of phenanthridine binding to the metal centre is altered compared to in phenanthriplatin, thanks to the constraints of the ligand geometry. By enforcing coplanar binding with the metal's square planar coordination plane, these compounds exhibit altered modes of activity, and should hence enhance/change the spectrum of activity of our prodrug candidates compared with phenanthriplatin.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 19, 2022
    Assignee: University of Manitoba
    Inventors: David E. Herbert, Issiah B. Lozada, Bin Huang, Yaorong Zheng, Zihan Qiu
  • Publication number: 20220064198
    Abstract: The present disclosure relates to new metal complexes, including derivatives thereof, methods of making the metal complexes, and uses thereof, including uses, for example, as photosensitizers and as photocatalysts. In an embodiment, a metal complex having the structure of Formula (I): a salt, hydrate, solvate, tautomer, optical isomer, or combination thereof.
    Type: Application
    Filed: December 9, 2019
    Publication date: March 3, 2022
    Applicant: University of Manitoba
    Inventors: David E. HERBERT, Jason D. BRAUN
  • Publication number: 20210052601
    Abstract: Described herein is the development of synthetic routes to produce a wide variety of substituted phenanthridines, specifically, multidentate phenanthridine-containing ligand frameworks capable of anchoring to Pt via more than one binding site and with the phenanthridinyl moiety co-planar to the coordination plane of Pt. The multidentate chelation is designed to attenuate the reactivity of the platinum complex in vivo, and ultimately help mitigate side effects. In addition, the geometry of phenanthridine binding to the metal centre is altered compared to in phenanthriplatin, thanks to the constraints of the ligand geometry. By enforcing coplanar binding with the metal's square planar coordination plane, these compounds exhibit altered modes of activity, and should hence enhance/change the spectrum of activity of our prodrug candidates compared with phenanthriplatin.
    Type: Application
    Filed: May 24, 2019
    Publication date: February 25, 2021
    Inventors: David E. Herbert, Issiah B. Lozada, Bin Huang, Yaorong Zheng, Zihan Qiu
  • Patent number: 7908734
    Abstract: A hydraulic manifold assembly includes a manifold containing a plurality of hydraulic channels that direct fluid to a centralized location and a package disposed at the centralized location to measure fluid pressure at pressure ports corresponding to the hydraulic channels. The manifold assembly directs fluid to the single package rather than scattering fluid outputs to multiple sensor locations, simplifying the overall assembly configuration.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: March 22, 2011
    Assignee: Eaton Corporation
    Inventors: Mark L. Dell'eva, Timothy J. Green, David E. Herbert
  • Patent number: 7707872
    Abstract: A manufacturing process, system, and method is described that facilitates the assembly and testing of a hydraulic manifold with integral closed loop pressure sensing and feedback.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: May 4, 2010
    Assignee: Eaton Corporation
    Inventors: David E. Herbert, David R. Sosnowski
  • Publication number: 20100077596
    Abstract: A hydraulic manifold assembly includes a manifold containing a plurality of hydraulic channels that direct fluid to a centralized location and a package disposed at the centralized location to measure fluid pressure at pressure ports corresponding to the hydraulic channels. The manifold assembly directs fluid to the single package rather than scattering fluid outputs to multiple sensor locations, simplifying the overall assembly configuration.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Inventors: Mark L. Dell'Eva, Timothy J. Green, David E. Herbert
  • Patent number: 7484429
    Abstract: A closed loop adaptive fluid control system and method for use in hydraulic applications monitors one or more fluid characteristics, such as pressure, flow rate, accumulation time in an actuator, fill volume, etc., and compares the characteristic with a target response. A fluid characteristic sensor detects at least one fluid characteristic at a hydraulically-actuated device that is actuated by a electrically-operated. The sensor sends a device signal corresponding to the actual sensed characteristic to an electronic controller, which compares the device signal with a target response. The controller then identifies any differences between the device signal and the target response and provides a feedback signal to the electrically-operated valve to adjust the current to the valve, which in turn adjusts the electrically-operated valve so that the device signal corresponding to the sensed characteristic at the device converges toward the target response.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 3, 2009
    Assignee: Eaton Corporation
    Inventors: Scott D. Adams, David E. Herbert, Greg E. Ford, Peter M. Jacobsen, Harold L. Bowman, Timothy J. Green
  • Publication number: 20080082242
    Abstract: A pulse width modulated (PWM) valve-based hydraulic control system is disclosed. In one embodiment, a feedback control system includes a controller that receives a pressure command signal and a pressure feedback signal. The controller generates a duty cycle control signal that controls a PWM valve. The PWM valve provides a control pressure Pc to control a load, such as an actuator of an automatic transmission system. A pressure sensor measures the control pressure Pc and provides the pressure feedback signal. In another embodiment, a compensator provides compensation for linear and nonlinear effects in the pressure feedback signal, based at least in part, on other inputs, such as fluid temperature. In other embodiments, a plurality of controllers are provided, and a controller is selected by a switching logic processor, or by phase-in and phase-out filters, based on the pressure feedback signal and other inputs. A re-calibration process for the Pc versus duty cycle response of the PWM valve is also disclosed.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventors: Mark L. Dell'Eva, Ananthakrishnan Surianarayanan, David E. Herbert
  • Publication number: 20080072657
    Abstract: A manufacturing process, system, and method is described that facilitates the assembly and testing of a hydraulic manifold with integral closed loop pressure sensing and feedback.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 27, 2008
    Inventors: David E. Herbert, David R. Sosnowski
  • Publication number: 20070277754
    Abstract: A hydraulic manifold assembly includes a manifold containing a plurality of hydraulic channels that direct fluid to a centralized location and a package disposed at the centralized location to measure fluid pressure at pressure ports corresponding to the hydraulic channels. The manifold assembly directs fluid to the single package rather than scattering fluid outputs to multiple sensor locations, simplifying the overall assembly configuration.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 6, 2007
    Applicant: Eaton Corporation
    Inventors: Mark L. Dell'Eva, Timothy J. Green, David E. Herbert
  • Patent number: 7124047
    Abstract: The present invention relates to a method of analyzing accuracy of linear sensor output based on a theoretical prediction of the output model. The method comprises steps of: analyzing a statistically significant number of linear sensors to obtain operating profiles at two or more operating conditions; individually testing a linear sensor to obtain at least four data points; developing a theoretical prediction of the output model for each operating condition from the four data points; and comparing accuracy of the relationship between the theoretical prediction of the output model to sensor output in the operating profile corresponding to a given input for the same operating condition. Also disclosed are calibration algorithms associated therewith, as well as mechatronic units and further assemblies therefrom.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: October 17, 2006
    Assignee: Eaton Corporation
    Inventors: Yongcang Zhang, David E. Herbert
  • Patent number: 6929031
    Abstract: An electro-hydraulic manifold assembly with a plurality of solenoid operated valves disposed on a manifold block and each operable to control pressure from the inlet to a separate outlet. Sensing ports are provided in each outlet with a pressure sensor sealed over the sensing port for providing a signal indicative of the sensed pressure. The pressure sensors are mounted on a lead frame and connected to conductive strips in the lead frame. The lead frame has slots therein which permit the frame to be simultaneously electrically connected by bayonet connection to the terminals on each solenoid valve as the transducers are sealed over the sensing ports and the lead frame attached to the manifold block.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: August 16, 2005
    Assignee: Eaton Corporation
    Inventors: Greg E. Ford, Timothy J. Green, David E. Herbert, Harold L. Bowman, Peter M. Jacobsen
  • Patent number: 6810909
    Abstract: A solenoid operated three port pressure control valve assembly of the exhaust pressure bleed type. The valve for the inlet pressure supply port includes a pressure responsive diaphragm with the supply port obturator attached. A bleed orifice in the diaphragm provides viscous dampening of the movement of the obturator and minimizes inlet valve flutter. The valve assembly is disclosed in both normally open and normally closed configurations.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: November 2, 2004
    Assignee: Eaton Corporation
    Inventors: David E. Herbert, Douglas E. Boddy
  • Publication number: 20040187942
    Abstract: An electro-hydraulic manifold assembly with a plurality of solenoid operated valves disposed on a manifold block and each operable to control pressure from the inlet to a separate outlet. Sensing ports are provided in each outlet with a pressure sensor sealed over the sensing port for providing a signal indicative of the sensed pressure. The pressure sensors are mounted on a lead frame and connected to conductive strips in the lead frame. The lead frame has slots therein which permit the frame to be simultaneously electrically connected by bayonet connection to the terminals on each solenoid valve as the transducers are sealed over the sensing ports and the lead frame attached to the manifold block.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 30, 2004
    Applicant: EATON CORPORATION
    Inventors: Greg E. Ford, Timothy J. Green, David E. Herbert, Harold L. Bowman, Peter M. Jacobsen
  • Publication number: 20040118466
    Abstract: An electro-hydraulic manifold assembly including integral pressure transducers for providing real time indication of the control pressure signal output of each electrically operated valve on the manifold. The transducer dies are adhesively attached to circuit boards and the leads ultrasonically attached to pads on the ends of conductive strips on the circuit boards. Upstanding electrical connectors are attached to the circuit boards and connected to the dies which are potted over with silicone potting compound and the circuit board attached to the manifold. An electrical lead frame commonly engages the solenoid terminals and the pressure transducer terminals in bayonet style connection through slots in the lead frame.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Applicant: EATON CORPORATION
    Inventors: Greg E. Ford, Timothy J. Green, David E. Herbert, Harold L. Bowman
  • Patent number: 6715510
    Abstract: An electro-hydraulic controller having a plurality of solenoid operated valves mounted in inlet and outlet ported valving cavities on a non-metallic manifold block. The manifold block has inlet and outlet ports sealed by a gasket for communication with corresponding ports in a metallic base to which the manifold block is attached. The base is sufficiently rigid to resist prohibitive deflection when exposed to the forces of fluid pressure when secured over the open hydraulic channels of an automatic transmission shift circuit deck. The non-metallic manifold may be fabricated to “Net Shape” without costly secondary operations to achieve critical dimensions.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: April 6, 2004
    Assignee: Eaton Corporation
    Inventor: David E. Herbert
  • Publication number: 20040025948
    Abstract: A solenoid operated three port pressure control valve assembly of the exhaust pressure bleed type. The valve for the inlet pressure supply port includes a pressure responsive diaphragm with the supply port obturator attached. A bleed orifice in the diaphragm provides viscous dampening of the movement of the obturator and minimizes inlet valve flutter. The valve assembly is disclosed in both normally open and normally closed configurations.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 12, 2004
    Applicant: EATON CORPORATION
    Inventors: David E. Herbert, Douglas E. Boddy
  • Publication number: 20030226527
    Abstract: An electro-hydraulic controller having a plurality of solenoid operated valves mounted in inlet and outlet ported valving cavities on a non-metallic manifold block. The manifold block has inlet and outlet ports sealed by a gasket for communication with corresponding ports in a metallic base to which the manifold block is attached. The base is sufficiently rigid to resist prohibitive deflection when exposed to the forces of fluid pressure when secured over the open hydraulic channels of an automatic transmission shift circuit deck. The non-metallic manifold may be fabricated to “Net Shape” without costly secondary operations to achieve critical dimensions.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 11, 2003
    Applicant: EATON CORPORATION
    Inventor: David E. Herbert