Patents by Inventor Alan Qing Zhu

Alan Qing Zhu 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: 7025335
    Abstract: A modular picket fence including a pair of vertical separated posts and adapted to be secured to a suitable support surface. A pair of horizontal upper and lower rails extend between and secured to the vertical posts. The upper rail has a plurality of apertures which are aligned with a plurality of apertures on the lower rail. A plurality of vertical pickets are respectively inserted through into aligned apertures of the upper and lower rails. The end portion of each vertical picket has two transverse apertures. A locking member is assembled inside each end portion of the vertical picket. The locking member has spring biased stoppers extending through the transverse apertures at the end portion of the vertical picket, and further extending into and engaging inside the horizontal rail when the end portion of the vertical picket is inserted into one of the apertures of the horizontal rail.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: April 11, 2006
    Inventor: Alan Qing Zhu
  • Publication number: 20040046162
    Abstract: A modular picket fence including a pair of vertical posts positioned at suitable distance and adapted to be secured to a suitable support surface. A pair of horizontal upper and lower rails extend between and secured to the vertical posts. The upper rail has a plurality of apertures which are aligned with a plurality of apertures on the lower rail. A plurality of vertical pickets are respectively inserted through into aligned apertures of the upper and lower rails. The end portion of each vertical picket has two transverse apertures. A locking member is assembled inside each end portion of the vertical picket. The locking member has spring biased stoppers extending through the transverse apertures at the end portion of the vertical picket, and further extending into and engaging inside the horizontal rail when the end portion of the vertical picket is inserted into one of the apertures of the horizontal rail, thereby preventing vertical movement of the vertical pickets with respect to the horizontal rails.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 11, 2004
    Inventor: Alan Qing Zhu
  • Patent number: 6648304
    Abstract: A modular fence assembly including a pair of vertical posts positioned at suitable distance and adapted to be secured to a suitable support surface. At least one horizontal upper and lower rails extend between and secured to the vertical posts. The horizontal upper rail has a plurality of vertical apertures which are substantially aligned with a plurality of vertical apertures on the horizontal lower rail. A plurality of pickets are respectively inserted through the vertical apertures of the upper rail and through aligned vertical apertures of the lower rail. Each picket has at least two transverse locking slotted apertures for respectively receiving a H-shaped locking clip to secure the picket to the rail and preventing vertical movement of the pickets with respect to the rails.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: November 18, 2003
    Assignee: XCEL Distribution, Inc.
    Inventor: Alan Qing Zhu