Patents by Inventor Wendell E. Robb

Wendell E. Robb 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: 5003642
    Abstract: A foreign matter trap for use in a drain such as a shower or sink drain in which water flows downwardly through a drain pipe, the trap having an element for removably positioning in the drain pipe including a downwardly extending longitudinal member, a plurality of layers of foreign matter catching members extending generally radially from the longitudinal member, each layer being formed of a plurality of spaced apart spicule members, the spicule members of each layer covering less than a complete cross-sectional circumferential area leaving a portion free for the flow of water therepast, the layers being arranged so that the spicule members in adjacent upper layers extend over and above the free cross-sectional areas of the next lower layer so that water may continue to flow through the drain even when the spicule members of any layer are completely closed by trapped foreign matter.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: April 2, 1991
    Inventors: Wendell E. Robb, William S. Hudson
  • Patent number: 4460017
    Abstract: A flow diversion valve having first and second tubular spool housings joined at a contiguous edge to form an assembly, each of the housings having a flow passageway intermediate the housing ends, the passageways being opposite each other, and each of the housings having first and second ports formed in the sidewall spaced 90.degree.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: July 17, 1984
    Inventor: Wendell E. Robb