Patents Represented by Attorney G. F. Helfrich
  • Patent number: 4325322
    Abstract: A liquid receptacle in the form of a chamber has a slit in one section thereof, the elongated sides of the slit being parallel straight lines. The chamber communicates through another section thereof with means for the supply thereto of a liquid treating composition at a controlled rate. Guide means configures a traveling multi-filament textile yarn in a close-packed monofilamentary layer and directs the so-configured traveling textile yarn under a desired tension and at a right angle over the slit and in contact with the chamber at a point downstream of the slit and in proximity thereto. The minimum length of the slit is equal to the total width of the traveling textile yarn when configured in a close-packed monofilamentary layer; and the width of the slit is between about 0.001 and 0.01 inches.
    Type: Grant
    Filed: October 4, 1979
    Date of Patent: April 20, 1982
    Assignee: Badische Corporation
    Inventors: James B. Louch, William Postman, Thomas A. Ward, Willis E. Cole
  • Patent number: 4307144
    Abstract: Static-dissipating fabric constructions especially suitable as upholstery material comprise a dielectric wear surface, which is a durable film or sheet of polymeric material such as polyvinyl chloride or polyurethane, and a conductive substratum securely bonded to the underside of the wear surface. The substratum has a surface resistance of 10.sup.9 ohms/square or less.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: December 22, 1981
    Assignee: Badische Corporation
    Inventors: John H. Sanders, Galen E. Chambers, James A. Gusack