Patents by Inventor Carl A. Ramsey

Carl A. Ramsey 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: 11951688
    Abstract: A generator injection tool is provided. The generator injection tool injects an adhesive into a generator that includes a rotor positioned within a stator having a stator vent, the stator and rotor having a gap therebetween. The generator injection tool includes a first carriage sized to fit within the gap, a tube, a first motor, a controller, and an adhesive source. An end of the tube is movable between a first position in which the end is outside of the stator vent and a second position within the stator vent. The first motor is operable to move the tube between the first position and the second position. The controller is operable to selectively activate the first motor to position the end of the tube within the stator vent. The adhesive source moves the adhesive through the tube end to inject a portion of the adhesive into the stator vent.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: April 9, 2024
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Anthony Barca, Lucas Ramsey, Bryce Merrill, Eric Evans, Michael A. Hall, Carl R. Larson
  • Patent number: 6229289
    Abstract: A method and apparatus are provided for transitioning a power converter between a switched mode of operation and a linear regulator mode of operation. The power converter operates according to one or more intermediate modes of operation in which the switched mode and linear regulator modes cooperate to produce a shared power converter output. The power converter transitions between the various modes of operation in response to changes in circuit parametric conditions as defined by a series of state transition diagrams. Power converter output voltage is maintained in regulation during all modes of operation and transitions therebetween. The method and apparatus includes an integrated device that may be operated as a switch or a variable resistance device.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: May 8, 2001
    Assignee: Cadence Design Systems, Inc.
    Inventors: Alessandro Piovaccari, Carl A. Ramsey, Eric H. Naviasky
  • Patent number: 6215288
    Abstract: A low-power controller for a discontinuous switched mode power converter. The controller has an inductor current sensing circuit to measure the inductor current flowing through an inductive charge storage element as well as an output voltage sensing circuit to monitor output voltage. The controller monitors both the converter output voltage and the inductor current and uses this information to modulate a peak inductor current trip point and controller switching frequency according to a control law curve in order to regulate converter output voltage. The controller prevents the switching frequency from falling below a predetermined minimum frequency. The control law curve is selectable to specify controller operation according to a desired combination of minimum switching frequency and maximum peak inductor current.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 10, 2001
    Assignee: Cadence Design Systems, Inc.
    Inventors: Carl A. Ramsey, Eric H. Naviasky