Spring powered toys

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Elastic motor having time-averaged constant torque output

    • Publication number 20030024769
    • Publication date Feb 6, 2003
    • Lewis Illingworth
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Application

    Elastic motor

    • Publication number 20010050201
    • Publication date Dec 13, 2001
    • Lewis Illingworth
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...