Patents by Inventor Josef Woellhaf

Josef Woellhaf 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).

  • Method of manufacturing and loading magnetic tape cassettes, particularly compact cassettes, and support for carrying out said method
    Patent number: 4168040
    Abstract: A mechanical method of manufacturing magnetic tape cassettes, wherein the magnetic tape is loaded into the cassette during assembly of the cassette parts, and a support controllable by a mechanical conveyor system and having an intermittently rotatable winding disc for the magnetic tape.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: September 18, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Gaiser, Josef Woellhaf, Klaus Schoettle, Friedrich Guenther, Eugen Kamm, Erich Wendt
  • Method of manufacturing and loading magnetic tape cassettes, particularly compact cassettes
    Patent number: 4127925
    Abstract: A mechanical method of manufacturing magnetic tape cassettes, wherein the magnetic tape is loaded into the cassette during assembly of the cassette parts, and a support controllable by a mechanical conveyor system and having an intermittently rotatable winding disc for the magnetic tape.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: December 5, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Gaiser, Josef Woellhaf, Klaus Schoettle, Friedrich Guenther, Eugen Kamm, Erich Wendt
  • Apparatus for coating magnetic disks
    Patent number: 4033288
    Abstract: A disk to be coated on both sides in rotatively supported within an annular housing of a larger internal diameter. Means traverse and coat each side of the rotating disk. The inner housing wall is disposed transversely to the disk and has an annular slot operatively associated with the disk whereby excess coating material is spun off the disk and into the housing. The housing is radially of a triangular cross-section, the apex offset from said disk whereby said spun off material strikes an inclined internal wall surface of the housing. Means orbit a plurality of such disks about a central axis and through a plurality of movable treating stations.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: July 5, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Josef Woellhaf, Werner Balz, Roland Falk, Dieter Scheffel, Volker Richter, Paul Willmann
  • Apparatus for the production of exposed printing plates
    Patent number: 4017183
    Abstract: A process and apparatus for the production of exposed printing plates consisting of a resin layer and a support, said resin layer being prepared from a fluid photopolymerizable material which is introduced into a mold having at least one transparent wall which is covered with an image-bearing transparency, and being exposed through said image-bearing transparency, which causes photopolymerization of the exposed areas of the resin layer and bonds these areas to the support which is provided with an adhesive layer.
    Type: Grant
    Filed: February 19, 1975
    Date of Patent: April 12, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Lenz, Josef Woellhaf, Klaus Spreng, Manfred Zuerger, Paul Hecke, Gerhard Hoffmann, Milan Obradovic