Patents Represented by Attorney, Agent or Law Firm Hugh Gortler
  • Hand-held self-contained cleaning system
    Patent number: 6602071
    Abstract: A handheld cleaning device includes a cleaning section having discharge and suction ports; and a pump for causing fluid to be discharged through the discharge port of the cleaning section and for simultaneously creating suction at the suction port of the cleaning section.
    Type: Grant
    Filed: January 13, 2001
    Date of Patent: August 5, 2003
    Inventors: M. Edmund Ellion, Mark J. Shultz
  • Parallel operation of multiple generators
    Patent number: 6297977
    Abstract: A power generation system includes multiple generators that are operated in parallel. An inverter of one of the generators is always operated in voltage mode. Inverters of the other generators are switched between voltage and current modes.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: October 2, 2001
    Assignee: Honeywell Power Systems Inc.
    Inventors: Colin E. Huggett, David C. Lewis
  • Prime mover for operating an electric motor
    Patent number: 6175210
    Abstract: A prime mover such as a microturbine generator is operated to generate dc power, and an inverter is controlled to convert the dc power to ac power. The ac power is supplied to an electric motor. The frequency of the ac power is ramped up during motor startup to reduce motor inrush current. The frequency or current of the ac power may be varied in response to process requirements during normal operation of the motor.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: January 16, 2001
    Assignees: AlliedSignal Power Systems Inc., Mercury Electric Corporation
    Inventors: Jerry H. Schwartz, Mark J. Skowronski