Patents by Inventor Hans P. Ewertz

Hans P. Ewertz 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: 3947075
    Abstract: A bearing system, for joint or hinge point bearings, employing a spherical bearing wherein the ball member is provided with oppositely disposed flat side walls and the bearing race therefore is formed with a longitudinal slot whereby the ball member can be inserted into the race. A sleeve, which is secured to a supporting or operating member during installation, is provided about the race and the sleeve and race are formed with mating splines which enable the spherical bearing assembly to reciprocatably move relative to the sleeve.Suitable lubricating channels are provided, and sealing rings are installed at the outer margins of the bearing ball and race members to retain the lubricant in place and to prevent the ingress of foreign material.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: March 30, 1976
    Assignee: Valley-Todeco, Inc.
    Inventor: Hans P. Ewertz