Patents by Inventor Saj Ravindran

Saj Ravindran 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).

  • Screen cloth insertion apparatus and method
    Patent number: 6991693
    Abstract: An apparatus secures ventilation cloth to a screen frame. A screen frame is oriented in an approximately vertical position. The screen frame has a plurality of segments. Each segment has a mounting surface on a face thereof. At least one of said segments has adhesive on the mounting surface thereof. A ventilation cloth is hung across the mounting surface of said one segment. The adhesive in said one of the segments is melted. The ventilation cloth is inserted in the adhesive across a length of said one of the segments.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: January 31, 2006
    Assignee: Saint-Gobain BayForm America, Inc.
    Inventors: Douglas H. Wylie, John A. Walker, David G. Nelson, Saj Ravindran
  • Screen cloth insertion apparatus and method
    Publication number: 20030029546
    Abstract: An apparatus secures ventilation cloth to a screen frame. A screen frame is oriented in an approximately vertical position. The screen frame has a plurality of segments. Each segment has a mounting surface on a face thereof. At least one of said segments has adhesive on the mounting surface thereof. A ventilation cloth is hung across the mounting surface of said one segment. The adhesive in said one of the segments is melted. The ventilation cloth is inserted in the adhesive across a length of said one of the segments.
    Type: Application
    Filed: February 22, 2002
    Publication date: February 13, 2003
    Inventors: Douglas H. Wylie, John A. Walker, David G. Nelson, Saj Ravindran
  • Method of fabricating adhesively secured frame assembly
    Patent number: 6331223
    Abstract: A frame includes a plurality of screen bar segments. To form the screen bar, a flat malleable strip is provided. The strip is roll-formed to form a tube having a tensioning step on its face. The tensioning step extends along a length of the tube. The tensioning step has a mounting surface, which may be the bottom of the tensioning step. A hot-melt adhesive is applied to the mounting surface. The screen is spread across the frame, so that the screen extends over the mounting surface of each screen bar segment. The screen is secured to the face of the frame with an adhesive at a plurality of positions across a length of the mounting surface of at least one screen bar segment. The adhesive may be a hot melt adhesive. The screen is inserted with a plurality of pins to intermittently suspend the screen in the adhesive across the length of the screen bar segment. An apparatus for securing the screen to the screen bar segment includes a support surface that holds a screen bar segment.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: December 18, 2001
    Assignee: Saint-Gobain Bayform America, Inc.
    Inventors: Douglas H. Wylie, John Szabo, Saj Ravindran