Patents by Inventor Otto Kahle

Otto Kahle 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).

  • Sealing Arrangement
    Patent number: 6325383
    Abstract: A sealing arrangement having two machine parts which are moved relative to one another and which enclose a sealing ring, the sealing arrangement having a radially internal retaining part, a radially external sealing part, and a resilient connecting part joining these two. The sealing part is prestressed with respect to the radially outward opposing sealing surface exclusively by the elongation of the holding part while the diameter of the sealing part remains unchanged.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: December 4, 2001
    Assignee: Firma Carl Freudenberg
    Inventors: Otto Kahle, Hans Werther
  • Guide arrangement for hydraulic cylinders
    Patent number: 6012847
    Abstract: Guide-ring arrangement on a cylindrical guide part for the relative guiding of an elongate guided part having a guide ring where the rear surface projects in a convex manner.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: January 11, 2000
    Assignee: Carl Freudenberg
    Inventor: Otto Kahle
  • Strip seal for stuffing box packing
    Patent number: 4157835
    Abstract: A graphite containing strip seal for stuffing box packing made of graphite with a maximum modulus of elasticity of 2000 N/mm.sup.2, with the strip seals having patterns of raised areas and indentations along at least one surface thereof such that when the strip is coiled there is no mating of the raised areas and the grooves.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: June 12, 1979
    Inventors: Otto Kahle, Gunter Reichow