Patents by Inventor Brian W. Mann

Brian W. Mann 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: 20140239082
    Abstract: A liquid delivery system includes an engine and a hydraulic circuit, which includes a hydraulic pump driven by the engine and a hydraulic motor driven by the hydraulic pump. A liquid pump is driven by the hydraulic motor and is configured to provide pressurized liquid along a liquid conduit. A variable orifice spray head is configured to receive the pressurized liquid from the liquid conduit and deliver the pressurized liquid through an opening of the variable orifice spray head. An actuation mechanism is configured to change a size of the opening of the variable orifice spray head responsive to command signals. An electronic control module has a spray head calibration algorithm executable thereon that identifies a correlation, which is stored in memory, between a variable orifice spray head command signal and a target variable orifice spray head opening size based on a hydraulic pressure along the hydraulic circuit.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: Caterpillar Inc.
    Inventors: David C. Freeman, Brian W. Mann, Balamurugesh Thirunavukarasu
  • Patent number: 5762475
    Abstract: A calibration apparatus and method for calibrating a hydraulic control valve connected to an electronic controller. The electronic controller selects control signals and reads corresponding hydraulic pressure outputs of the hydraulic control valve and selectively records values corresponding to control signals that produce desired calibration pressures.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: June 9, 1998
    Assignee: Caterpillar Inc.
    Inventors: Jim B. Maddock, Brian W. Mann, David R. Meinhold
  • Patent number: 5757224
    Abstract: The present invention is directed toward a circuit for receiving an input current and for producing an output voltage proportional to the input current. The circuit includes a first transistor which receives the input current, and a second transistor connected to the first transistor, wherein the first and second transistors comprise a current mirror topology. A third transistor is connected in series with the first transistor, and an operational amplifier has an output which is connected to the base of the third transistor. The third transistor has a collector coupled to a base junction of the current mirror. The operational amplifier has a positive input terminal coupled to a collector of the second transistor through a first resistor, and a negative input terminal coupled to an emitter of the third transistor through a second resistor, the first and second resistors having substantially similar impedance values.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: May 26, 1998
    Assignee: Caterpillar Inc.
    Inventors: James A. Antone, Brian W. Mann