Patents by Inventor Jim Lindemulder

Jim Lindemulder 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).

  • Protector for sewer system inlet
    Patent number: 7070691
    Abstract: A protector for the inlet into a sewer system includes a straight or annular, porous tubular casing for placing on or around the periphery of a sewer grate; a skirt extending inwardly or outwardly from the bottom of the casing for overlapping the side edges of a sewer opening so the grate retains the protector in the use position; and a filler in the casing for maintaining the casing in an expanded condition, at least one of the casing, the skirt and the filler being permeable to water and impermeable to contaminants, whereby water can flow into the system while contaminants are blocked.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: July 4, 2006
    Assignee: BMP Supplies Inc.
    Inventor: Jim Lindemulder
  • Protector for sewer system inlet
    Publication number: 20040112811
    Abstract: A protector for the inlet into a sewer system includes a straight or annular, porous tubular casing for placing on or around the periphery of a sewer grate; a skirt extending inwardly or outwardly from the bottom of the casing for overlapping the side edges of a sewer opening so the grate retains the protector in the use position; and a filler in the casing for maintaining the casing in an expanded condition, at least one of the casing, the skirt and the filler being permeable to water and impermeable to contaminants, whereby water can flow into the system while contaminants are blocked.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 17, 2004
    Inventor: Jim Lindemulder