Patents by Inventor Henry Richardson

Henry Richardson 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).

  • Publication number: 20050012280
    Abstract: There is disclosed a sealing member. Preferably the sealing member is employed for sealing within a fuel filler assembly although not required.
    Type: Application
    Filed: August 13, 2004
    Publication date: January 20, 2005
    Applicant: L&L Products, Inc.
    Inventor: Henry Richardson
  • Patent number: 4750249
    Abstract: A pipe scraping tool for cleaning scale and other deposits from the exterior surfaces of pipes. The tool includes a plurality of inverted "U"-shaped scraper members each of which is carried by one of a series of interconnected hinged links, each link (preferably rectangular in shape) having a straight edge at each end thereof. These straight edges and the type of links used avoid excessive lateral movement of the links. The inverted "U"-shape of the scraper members provides relatively closely spaced cutting edges. The substantial length of the legs of the inverted "U"s helps avoid clogging of the tool by providing substantial exit spaces, for scale and other debris removed from the pipe exterior surfaces, between the cutting edges and the structure supporting those cutting edges, as well as between the cutting edges and the hinges that interconnect the links that carry the scraper members.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: June 14, 1988
    Inventor: Henry A. Richardson
  • Patent number: 4032367
    Abstract: The invention provides a corrosion resistant high strength steel, which has a ferritic/austenitic microstructure consisting of 40 to 60% austenite grains embedded in a ferrite matrix being substantially free of precipitated particles of other phases, the steel consisting of the following elements in proportion by weight:______________________________________ Chromium 26.5% - 30% by weight Nickel 7.4% - 14% by weight Molybdenum 2.0% - 5% by weight Copper 0.5% - 5% by weight Silicon 0.2% - 2% by weight Manganese 0.2% - 4% by weight Carbon 0.01% - 0.1% by weight Nitrogen 0.1% - 0.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: June 28, 1977
    Assignee: Langley Alloys Limited
    Inventors: William Henry Richardson, Prodyot Guha