Patents by Inventor Wolfhard Sack

Wolfhard Sack 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: 4168160
    Abstract: An arrangement for measuring and/or monitoring an axial force applied to a shaft-like member having an axis and supported in a housing by at least one roller bearing, comprises an inner sleeve-shaped element receiving the roller bearing of the shaft-like member and having two end portions spaced from one another in an axial direction, an outer element connected with the housing of the shaft-like member, and an elastically deformable web arranged at at least one of the end portions of the inner element so as to support the latter in the outer element, and provided with strain sensors. The strain sensors may include strain gauges and the like. The elastically deformable webs may be arranged on both end portions of the inner element. The inner element, the outer element and the webs may together form an integral member.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: September 18, 1979
    Inventors: Theodor Stoferle, Wolfhard Sack
  • Patent number: 4023572
    Abstract: A surgical milling tool includes a body having a hemispherically-shaped outer surface and defining an internal cavity. Cutting blades carried at spaced locations on the outer surface are operative to mill tissues of a joint socket when the tool is introduced and rotated in the socket. Holes are formed through the outer surface and communicate with the internal cavity to channel cut-off tissues into the cavity as the tool is rotated. A tool support is releasably connected to the tool body to assist in positioning and rotating the body. The support includes a cover which releasably closes the body cavity to retain cut-off tissues within the cavity. Several related tool body and tool support embodiments are described which include structures for releasably drivingly connecting the tool body and the tool support. Some of the embodiments include movable latching elements for securing connections formed between the tool bodies and the tool supports.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: May 17, 1977
    Inventors: Hanfried Weigand, Bernhard Bellmann, Henning Muller-Gerbes, Wolfhard Sack, Paul-Heinz Theimert