Patents by Inventor Yang-Chang Pan

Yang-Chang Pan 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).

  • Patent number: 5979671
    Abstract: An electrically operated elevatable clothes drying assembly including two positioning frames having respective slide grooves for receiving respective slide blocks; a securing rod including a slide groove at an upper end for receiving the positioning blocks, a hollow extension extending downwardly form the slide groove, and a cylindrical tube formed at a lower end thereof, the cylindrical tube having a pair of positioning lugs at an inner edge thereof; left and right covers which are locked to the left and right ends of the securing rod to position a screw rod and a screw sleeve having curved indentations corresponding to the lugs of the cylindrical tube within the cylindrical tube, the covers further having pulleys corresponding to the hollow extension of the securing rod, and the right cover having an additional lower pulley; a clothes rod having a left rope passing over the pulleys of the covers to be secured to an upper end of the screw sleeve and a right rope passing over the lower pulley of the right cov
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: November 9, 1999
    Inventors: Yang-Chang Pan, Te-Fu Yeh