Patents by Inventor Timothy D. Gronli

Timothy D. Gronli 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).

  • Publication number: 20240077044
    Abstract: Systems and methods are provided for improving the accuracy of fuel metering for a motor-driven fuel pump, without the need for a matched-set controller. A characterization resistor value specific to the fuel pump or motor is used to calculate a fuel pump motor speed to regulate fuel delivery to an engine.
    Type: Application
    Filed: September 6, 2023
    Publication date: March 7, 2024
    Inventor: Timothy D. Gronli
  • Patent number: 8904891
    Abstract: A wiper for a translating ram with recessed features includes a first element conforming to the recessed features of the translating ram; and a second element conforming to the external surface of the translating ram. The first element and second element conform to the cross-section of the translating ram when placed axially adjacent.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 9, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Timothy D. Gronli, Richard A. Himmelmann
  • Publication number: 20130262025
    Abstract: A device for absolute position sensing includes a motor having a motor sensor configured to provide a signal indicative of an angular position or change in angular position of a rotor of the motor. The device also includes an actuator having an actuator sensor disposed at a set-point along a linear range of motion of the actuator configured to provide a signal indicative of a linear position of the actuator. The device further includes a controller configured to receive the signals from the rotor sensor and the actuator sensor and responsively calculate an absolute position of the actuator.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Timothy D. Gronli, Shawn M. Nelson
  • Patent number: 8429907
    Abstract: A hydraulic system including a hydraulic power source (102) having an output and a directional control valve (106) coupled to the output of the hydraulic power source. The system also includes a hydraulic cylinder (108) coupled to the directional control valve that receives hydraulic fluid at a first port and expels it at a second port as it moves a load (114) at a movement rate, a fixed displacement motor (150) coupled the directional control valve and receiving hydraulic fluid expelled by the hydraulic cylinder and a variable displacement pump (154) attached to a drive arm (152) of the motor.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: April 30, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Timothy D. Gronli
  • Publication number: 20130019420
    Abstract: A wiper for a translating ram with recessed features includes a first element conforming to the recessed features of the translating ram; and a second element conforming to the external surface of the translating ram. The first element and second element conform to the cross-section of the translating ram when placed axially adjacent.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 24, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Timothy D. Gronli, Richard A. Himmelmann
  • Patent number: 8322242
    Abstract: A linear actuation system has two linear actuator channels acting in tandem and a gear housing connecting the two actuator channels and providing an output for the actuation system. The gear housing has multiples gears with at least one gear connected to each actuator and is movable.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: December 4, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Timothy D. Gronli
  • Publication number: 20110072920
    Abstract: A linear actuation system has two linear actuator channels acting in tandem and a gear housing connecting the two actuator channels and providing an output for the actuation system. The gear housing has multiples gears with at least one gear connected to each actuator and is movable.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventor: Timothy D. Gronli
  • Publication number: 20110000202
    Abstract: A hydraulic system including a hydraulic power source (102) having an output and a directional control valve (106) coupled to the output of the hydraulic power source. The system also includes a hydraulic cylinder (108) coupled to the directional control valve that receives hydraulic fluid at a first port and expels it at a second port as it moves a load (114) at a movement rate, a fixed displacement motor (150) coupled the directional control valve and receiving hydraulic fluid expelled by the hydraulic cylinder and a variable displacement pump (154) attached to a drive arm (152) of the motor.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 6, 2011
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Timothy D. Gronli