Patents by Inventor Hans-Dieter Pfeiffer

Hans-Dieter Pfeiffer 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: 4687037
    Abstract: A pneumatic vehicle tire which is provided with a belt and with tread rib sections which are separated from one another by respective circumferential grooves. One or more cord fabric plies are disposed in the vicinity of the circumferential grooves to reinforce the belt. The cord fabric plies essentially extend over the width of the groove, and preferably have a width which is slightly greater than the width of the grooves.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: August 18, 1987
    Assignee: Continental Gummi-Werke Aktiengesellschaft
    Inventors: Hans-Dieter Pfeiffer, Heinrich Huinink, Thorsten Reese
  • Patent number: 4204567
    Abstract: A tread structure for pneumatic vehicle tires, according to which the tread is provided with a centrally arranged zigzag groove extending in the circumferential direction of the tire. The tread also has elevations or raised sections on both sides of the circumferential groove. The elevations follow one another in the circumferential direction of the tire, and are separated from one another by other grooves, including grooves which start from the zigzag central circumferential groove and extend straight towards both tire shoulders. Of these straight grooves, those which follow one another in the circumferential direction of the tire are slanted in opposite directions with regard to the circumferential or transverse direction of the tire.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: May 27, 1980
    Assignee: Continental Gummi-Werke Aktiengesellschaft
    Inventors: Gunter Johannes, Hans-Dieter Pfeiffer