Patents by Inventor Stephan Macher

Stephan Macher 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).

  • Longitudinal Plunging Unit with Cage Securing Means
    Publication number: 20070287545
    Abstract: A longitudinal plunging unit comprises a profiled sleeve with longitudinally extending first ball grooves, and a profiled journal with longitudinally extending second ball grooves. The profiled journal engages said profiled sleeve with balls arranged in groups in pairs of first ball groove and second ball grooves. A ball cage positioned between the profiled sleeve and the profiled journal fixes the balls in their axial position relative to one another. The ball cage is displaceable relative to the profiled journal between spaced axial stops. On the profiled journal, there is arranged a stop sleeve, which can abut the profiled journal or a component connected thereto. The stop sleeve delimits the displacement path of the ball cage towards the second portion.
    Type: Application
    Filed: July 22, 2005
    Publication date: December 13, 2007
    Inventors: Arne Berger, Olaf Wolf, Stephan Macher, Heiko Kossack, Robert Sandig
  • Roller
    Patent number: 4055879
    Abstract: A roller to be used in apparatus for wet treatment of photographic material comprises a hollow metallic core and two inserts with coupling shafts provided therein. A coat of chemically resistant thermoplastic material is applied around and sealingly surrounds the core to protect it from the corrosive action of media used in the wet treatment process. The outer surface of the thus coated roller is thereupon machined to a high-quality finish.
    Type: Grant
    Filed: May 25, 1976
    Date of Patent: November 1, 1977
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Siegfried Schneider, Kurt Thate, Erwin Geyken, Horst Kempe, Stephan Macher
  • Method of making roller
    Patent number: 3971115
    Abstract: A roller to be used in apparatus for wet treatment of photographic material comprises a hollow metallic core and two inserts with coupling shafts provided therein. A coat of chemically resistant thermoplastic material is applied around and sealingly surrounds the core to protect it from the corrosive action of media used in the wet treatment process. The outer surface of the thus coated roller is thereupon machined to a high-quality finish.
    Type: Grant
    Filed: February 28, 1974
    Date of Patent: July 27, 1976
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Siegfried Schneider, Kurt Thate, Erwin Geyken, Horst Kempe, Stephan Macher