Patents by Inventor Charles L. Leonard

Charles L. Leonard 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).

  • Adapter for ultrasonic transducer assembly
    Patent number: 9993843
    Abstract: Ultrasonic transducer coupling adapters, ultrasonic transducer assemblies with an adapter, and methods for making and for using ultrasonic transducer adapter components are disclosed. An ultrasonic transducer assembly is disclosed for generating and transmitting ultrasonic energy to a work piece (e.g., non-resonant structures). The assembly includes piezoelectric actuators that generate ultrasonic vibrations in response to high-frequency electrical signals. A feedback system monitors and regulates voltages applied to the piezoelectric actuators. The assembly also includes an adapter that is connected to the piezoelectric actuators (e.g., via a front mass) and is configured to distribute the ultrasonic vibrations from the actuators to the work piece. The adapter reduces or substantially eliminates transmission back to the piezoelectric actuators of erratic strain generated by the work piece in response to these ultrasonic vibrations.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: June 12, 2018
    Assignee: Dukane IAS, LLC
    Inventors: Robert E. Aldaz, Leo M. Klinstein, Charles L. Leonard
  • ADAPTER FOR ULTRASONIC TRANSDUCER ASSEMBLY
    Publication number: 20150015115
    Abstract: Ultrasonic transducer coupling adapters, ultrasonic transducer assemblies with an adapter, and methods for making and for using ultrasonic transducer adapter components are disclosed. An ultrasonic transducer assembly is disclosed for generating and transmitting ultrasonic energy to a work piece (e.g., non-resonant structures). The assembly includes piezoelectric actuators that generate ultrasonic vibrations in response to high-frequency electrical signals. A feedback system monitors and regulates voltages applied to the piezoelectric actuators. The assembly also includes an adapter that is connected to the piezoelectric actuators (e.g., via a front mass) and is configured to distribute the ultrasonic vibrations from the actuators to the work piece. The adapter reduces or substantially eliminates transmission back to the piezoelectric actuators of erratic strain generated by the work piece in response to these ultrasonic vibrations.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventors: Robert E. Aldaz, Leo M. Klinstein, Charles L. Leonard
  • Systems for providing controlled power to ultrasonic welding probes
    Patent number: 7475801
    Abstract: An ultrasonic generator comprising an input module for receiving a power signal. An output module for outputting an ultrasonic signal is also included in the generator. A motherboard is coupled to both the input module and the output module. The motherboard includes a digital controller adapted to control the input module and the output module.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: January 13, 2009
    Assignee: Dukane Corporation
    Inventors: David K. Johansen, Charles L. Leonard, Leo Klinstein, William E. Jurkowski, Joseph Re