Patents by Inventor Richard A. Hull

Richard A. Hull 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: 12341451
    Abstract: A method of controlling an actuator includes transmitting a drive signal to an actuator motor to move a device, including automatically compensating for and rejecting uncertain and unmodeled torque disturbances of the actuator motor. A controller for an actuator includes a processing device configured to transmit a drive signal to an actuator motor to move a device, including automatically compensating for and rejecting uncertain and unmodeled torque disturbances of the actuator motor to perform the method.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: June 24, 2025
    Assignee: Simmonds Precision Products, Inc.
    Inventor: Richard A. Hull
  • Publication number: 20240356471
    Abstract: A method of controlling an actuator includes transmitting a drive signal to an actuator motor to move a device, including automatically compensating for and rejecting uncertain and unmodeled torque disturbances of the actuator motor. A controller for an actuator includes a processing device configured to transmit a drive signal to an actuator motor to move a device, including automatically compensating for and rejecting uncertain and unmodeled torque disturbances of the actuator motor to perform the method.
    Type: Application
    Filed: April 20, 2023
    Publication date: October 24, 2024
    Applicant: Simmonds Precision Products, Inc.
    Inventor: Richard A. Hull
  • Publication number: 20240345124
    Abstract: A Micro-Electrical-Mechanical-Systems (MEMS) accelerometer system includes a proof-mass device having a proof-mass that moves from an initial position in response to an input acceleration, a transducer connected to the proof-mass device to output a transducer signal correlating to movement and/or position of the proof-mass, and a driver configured to drive the proof-mass. A controller actively controls the driver to actively drive the proof-mass toward an initial position, and actively adjusts the drive signal based on a temperature signal (T) indicative of given temperature, a transducer voltage signal (Vref) indicative of a transducer voltage reference, and the transducer signal to actively generate a corrected drive signal and delivers the corrected drive signal to the driver to actively control the driver.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 17, 2024
    Inventors: Richard A. Hull, Vasileios Tsachouridis
  • Publication number: 20240094238
    Abstract: A MEMS accelerometer system can include a proof mass device having a proof mass configured to move from an initial position in response to an input acceleration, a transducer operatively connected to the proof mass device to output a transducer signal correlating to a movement and/or position of the proof mass, a driver operatively connected to the proof mass device and configured to drive the proof mass, and a controller operatively connected to the driver to control the driver. The controller is operatively connected to the transducer to receive the transducer signal and output a drive signal to the driver to drive the proof mass toward an initial position. The system can include an observer module operatively connected to the controller to receive the drive signal. The observer module can be operatively connected to the transducer to receive the transducer signal.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 21, 2024
    Applicant: Simmonds Precision Products, Inc.
    Inventors: Richard A. Hull, Vasileios Tsachouridis
  • Patent number: 11609540
    Abstract: A system including a system controller configured to transmit a first amount of commands in order to produce a desired effect by a group of actuators acting in combination. A system controller configured to control a group of at least two actuators in order to produce at least one combined effect, wherein the number of actuators is greater than or equal to the number of effects. A system controller configures to independent and variable bandwidths or responses of the desired effects produced by the actuators acting in combination.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 21, 2023
    Assignee: Simmonds Precision Products, Inc.
    Inventor: Richard A. Hull
  • Publication number: 20210232103
    Abstract: A system including a system controller configured to transmit a first amount of commands in order to produce a desired effect by a group of actuators acting in combination. A system controller configured to control a group of at least two actuators in order to produce at least one combined effect, wherein the number of actuators is greater than or equal to the number of effects. A system controller configures to independent and variable bandwidths or responses of the desired effects produced by the actuators acting in combination.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 29, 2021
    Applicant: Simmonds Precision Products, Inc.
    Inventor: Richard A. Hull
  • Patent number: 4882425
    Abstract: Described is composition of matter and methods useful for the indentification of blood group antigens. Additionally a kit which can be used to identify and quantify a large number of blood group antigens is disclosed. The composition of matter and the methods can be used to identify antigens on red blood cells, as well as, on tissue samples.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: November 21, 1989
    Assignee: Baylor College of Medicine
    Inventors: Richard A. Hull, Sheila I. Hull, Bogdan Nowicki