Patents by Inventor Chalerm Likitanupak

Chalerm Likitanupak 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).

  • Windmill
    Patent number: 4566853
    Abstract: A vertical axis windmill with a plurality of horizontal arms (16) mounted on an upright central axis (12) so as to rotate in a substantially horizontal plane. Each arm (16) has hinged at its free end a blade 18 which is downwardly depending. Each blade 18 being mounted at an angle of pitch to the respective end of the arm (16) of from 20.degree. to 80.degree. and also mounted at an angle of tilt to the end of the arm (16) of from 5.degree. to 30.degree.. Preferably, each blade (18) comprises one or more paddles (14) hinged to one or more frames (15).
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: January 28, 1986
    Inventor: Chalerm Likitanupak