Patents by Inventor Volker Piwek

Volker Piwek 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: 6438857
    Abstract: In a coordinate measurement device with a base frame, a measurement table supported at the latter for holding an object to be measured, a sensing device for sensing the surface of this object, and with a positioning device for moving the sensing device in three spatial axes over the measurement table, which positioning device is mounted at the base frame and carries the sensing device, the positioning device has a first slide which is guided at the base frame in a first direction and which is movable on one side of the measurement table toward and away from the latter and on which a second slide is movable in a second direction vertical to the first direction, this second slide being provided at its end area remote of the measurement table (considered in its movement direction) with a supporting portion which projects lateral to the measurement table and at which there is arranged a stirrup arm which projects over the measurement table in a direction vertical to a principal work plane of the measurement table
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: August 27, 2002
    Assignee: Carl-Zeiss Stiftung
    Inventors: Klaus Jacobs, Volker Piwek, Joerg Walther
  • Patent number: 6412981
    Abstract: In a seal arrangement for a load-carrying bearing which is supported on a guide path provided on a carrying body and which is arranged so as to be movable along the length of the guide path, especially for coordinate measuring devices, the bearing is connected with a bearing cover. The bearing cover spans the carrying body at least on one side thereof and has a side portion which is bent toward its side, each side portion projecting into a labyrinth recess which is arranged on the associated side of the carrying body over the entire length of the guide path to form a labyrinth seal.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: July 2, 2002
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Klaus Jacobs, Volker Piwek, Franz Woletz, Ralf Bernhardt
  • Publication number: 20010013177
    Abstract: In a coordinate measurement device with a base frame, a measurement table supported at the latter for holding an object to be measured, a sensing device for sensing the surface of this object, and with a positioning device for moving the sensing device in three spatial axes over the measurement table, which positioning device is mounted at the base frame and carries the sensing device, the positioning device has a first slide which is guided at the base frame in a first direction and which is movable on one side of the measurement table toward and away from the latter and on which a second slide is movable in a second direction vertical to the first direction, this second slide being provided at its end area remote of the measurement table (considered in its movement direction) with a supporting portion which projects lateral to the measurement table and at which there is arranged a stirrup arm which projects over the measurement table in a direction vertical to a principal work plane of the measurement table
    Type: Application
    Filed: December 1, 2000
    Publication date: August 16, 2001
    Inventors: Klaus Jacobs, Volker Piwek, Joerg Walther
  • Patent number: 6161298
    Abstract: The invention is directed to a coordinate measuring apparatus in bridge configuration wherein a bridge spanning the measuring pad is guided on two guides laterally of the measuring pad. To avoid measurement errors, which are caused by different warming of the coordinate measuring apparatus, the guides are mounted on the support rods which have a low thermal coefficient of expansion and the support rods are arranged in a support structure.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: December 19, 2000
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Ralf Bernhardt, Volker Piwek, Franz Woletz, Klaus Jacobs, Werner Leitenberger