Patents by Inventor Robert J. Schulz

Robert J. Schulz 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: 20200336075
    Abstract: Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter are described herein. A buffer circuit coupled in parallel with or across a resonant component (e.g., a transformer) input port avails a buffered primary port signal for use in resonant conversion. The buffered primary port signal is a comprehensive signal including information relating to both input voltage and input power; and it may be used to advantageously enhance switching and power conversion in an inductor-inductor capacitor (LLC) converter. Additionally, the LLC converter uses a sense interface circuit to provide a scaled replica of the buffered primary port signal. In one example the scaled replica can advantageously be used with a secondary side controller to control output power based on the comprehensive information contained within the buffered primary port signal.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Applicant: POWER INTEGRATIONS, INC.
    Inventors: Robert J. Mayell, Hartley Fred Horwitz, Frank Joseph Schulz
  • Publication number: 20200276662
    Abstract: A reciprocating saw blade including a body, an attachment portion, a cutting portion formed on the body including a plurality of cutting teeth, and a plunge point for initiating a plunge cut including a plunge tooth and a leading gullet between the plunge tooth and a first tooth of the plurality of cutting teeth. A first angle of the rake face of the plunge tooth is measured through the plunge tooth. A second angle of the rake face of the first cutting tooth is measured through the first cutting tooth. One of the first angle and the second angle is greater than 90 degrees and the other is less than 90 degrees. At least the first cutting tooth is set. The rake face defining the first angle is spaced from the rake face defining the second angle by a distance greater than the pitch of the plurality of cutting teeth.
    Type: Application
    Filed: March 31, 2020
    Publication date: September 3, 2020
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Patent number: 10763756
    Abstract: A resonant converter includes a resonant transformer having a leakage inductance and a magnetizing inductance coupled in series to form a resonant transformer input port. The resonant transformer has an output that is coupled to provide an output power to a load. A primary bridge circuit is coupled to provide an input power to the resonant transformer input port. A buffer circuit is coupled in parallel with the resonant transformer input port. A control module is coupled to receive a buffered primary port signal from the buffer circuit to control the primary bridge circuit to control the output power to the load in response to the buffered primary port signal.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: September 1, 2020
    Assignee: Power Integrations, Inc.
    Inventors: Robert J. Mayell, Hartley Fred Horwitz, Frank Joseph Schulz, Roger Colbeck
  • Patent number: 10722961
    Abstract: A saw blade for use with a reciprocating saw includes a body and an attachment portion extending from the body. The attachment portion includes a tang and an aperture configured to connect to the reciprocating saw. The saw blade also includes a cutting portion formed on the body. The cutting portion includes a plurality of cutting teeth, and first and second floor guard teeth spaced apart and positioned adjacent at least one of the plurality of cutting teeth. Each cutting tooth has a tip that defines a plane. The body has a first height measured generally perpendicularly from a back edge of the body to the plane. The attachment portion has a second height measured generally perpendicular to the plane. A ratio of the first height to the second height is between approximately 4 and approximately 5. The first and second floor guard teeth extend beyond the plane.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: July 28, 2020
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Austin J. Kazda, Robert W. Butzen, Andrew J. Schulz
  • Publication number: 20200195160
    Abstract: A resonant converter includes a resonant transformer having a leakage inductance and a magnetizing inductance coupled in series to form a resonant transformer input port. The resonant transformer has an output that is coupled to provide an output power to a load. A primary bridge circuit is coupled to provide an input power to the resonant transformer input port. A buffer circuit is coupled in parallel with the resonant transformer input port. A control module is coupled to receive a buffered primary port signal from the buffer circuit to control the primary bridge circuit to control the output power to the load in response to the buffered primary port signal.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Inventors: Robert J. Mayell, Hartley Fred Horwitz, Frank Joseph Schulz
  • Patent number: 10639732
    Abstract: A reciprocating saw blade includes a body having a first end portion, a second end portion, and a plunge point formed on the second end portion of the body. The plunge point includes a leading tooth and a leading gullet. The leading tooth includes a rake face and a tip. The leading gullet includes a base extending from the rake face of the leading tooth to the plurality of cutting teeth. The plunge point includes a second tooth protruding from the base of the leading gullet. The second tooth includes a tip positioned further from the base of the leading gullet than the tip of the second tooth in a direction transverse to a longitudinal axis of the body. The cutting portion also includes a plurality of gullets formed between a plurality of cutting teeth. The leading gullet is larger than each gullet of the plurality of gullets.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 5, 2020
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Publication number: 20190168322
    Abstract: A saw blade for use with a power tool includes a body with a first planar surface and a second planar surface opposite the first planar surface. The saw blade also includes an attachment portion that is configured to couple to the power tool. The attachment portion includes a tang and an aperture. The saw blade further includes a cutting edge with a plurality of cutting teeth and a plurality of hexagons formed on the first planar surface. The plurality of hexagons are arranged in a honeycomb pattern in which at least one side of each hexagon is substantially parallel to a corresponding side of an adjacent hexagon.
    Type: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Inventors: Robert W. Butzen, Erich Herman, Austin J. Kazda, Ryan J. Malloy, Roger D. Neitzell, Andrew J. Schulz, James M. Schreiber, Courtney D. McCool
  • Publication number: 20190168320
    Abstract: A reciprocating saw blade includes a body defining a longitudinal axis. The saw blade includes an attachment portion coupled to the body. The attachment portion is able to couple to a reciprocating saw. The saw blade further includes a cutting portion having a plurality of cutting teeth. Each cutting tooth includes a tip and a protrusion spaced a first distance from the tip. The protrusion of a respective cutting tooth is spaced a first distance from the tip of the cutting tooth in a direction parallel to the longitudinal axis. A gullet is defined between the tip of a first cutting tooth and the protrusion of an adjacent second cutting tooth. The gullet includes a gullet width in a direction parallel to the longitudinal axis. The first distance is greater than the gullet width.
    Type: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Patent number: 10293422
    Abstract: A blade is usable with a reciprocating saw. The blade includes an attachment portion configured to couple to the reciprocating saw and a body extending from the attachment portion. The body includes a first profile portion and a second profile portion extending from the first profile portion. The second profile portion has a height less than a height of the first profile portion. The blade also includes a plurality of teeth formed on the body and defining a toothed cutting edge. The blade also includes a tip portion formed at a distal end of the second profile portion and terminating in a pointed tip. The pointed tip is configured to punch a hole through the workpiece and includes a toothless cutting edge extending substantially parallel to the toothed cutting edge. The toothless cutting edge extends from the toothed cutting edge to the pointed tip.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: May 21, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Austin J. Kazda, Ryan J. Malloy, Robert W. Butzen, Andrew J. Schulz, Roger D. Neitzell, Courtney D. McCool
  • Patent number: 6218673
    Abstract: An optical scanner gives three dimensional dosimetric data by scanning, with at least one light beam, a translucent medium exhibiting optical properties which change upon receipt of radiant energy representing a dose distribution of the energy. At least one detector is employed to gather data indicative of changes in the optical properties of the medium after scanning from multiple directions to provide a representation of the optical properties in sections through the medium. Typical optical properties measured include optical density, light scattering, emitted light intensities, and combinations thereof.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: April 17, 2001
    Assignee: Yale University
    Inventors: John C. Gore, Marek J. Maryanski, Robert J. Schulz
  • Patent number: 4128041
    Abstract: A weapon elevating mechanism having an automatic clutch to lock the mecham at preselected elevation yet automatically release it for vertical movement upon actuation of the elevating input structure.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: December 5, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert J. Schulz
  • Patent number: D867083
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 19, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Patent number: D903448
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 1, 2020
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Austin J. Kazda, Ryan J. Malloy, Robert W. Butzen, Andrew J. Schulz, Roger D. Neitzell, Courtney D. McCool
  • Patent number: D903449
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 1, 2020
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Austin J. Kazda, Ryan J. Malloy, Robert W. Butzen, Andrew J. Schulz, Roger D. Neitzell, Courtney D. McCool