Patents by Inventor Hans Appoldt

Hans Appoldt 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).

  • Process for the manufacture of a jacket for a flexible disk for data recording
    Patent number: 4310371
    Abstract: A process for the manufacture of a jacket, comprising two cover sheets joined to one another, for a flexible disk for data recording, the cover sheets and the nonwoven lining being punched out in the form of blanks including the functional apertures, and the cover sheet blank and the nonwoven blank being joined to one another and then folded to form the jacket, wherein the sheet material for the cover sheets is transferred from a magazine, with the aid of mechanical, air-operated grippers provided with positioning means, to an assembly surface and is there provided, the sheet of nonwoven material from a second magazine is tacked onto the cover sheet material by spot-welding and is then joined thereto over the entire surface by thermal welding, thereafter the cover sheet material thus provided with the nonwoven covering is transferred to a holder frame and then conveyed, with this frame, to a punching device where it is punched out to form a blank provided with the functional apertures, subsequently the blank
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: January 12, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Appoldt, Werner Wagner, Karl Hauck, Reinhold Baur
  • Apparatus for the manufacture of a jacket for a flexible disk for data recording
    Patent number: 4304621
    Abstract: An apparatus for the manufacture of a jacket, comprising two cover sheets joined to one another, for a flexible disk for data recording, the cover sheets and the nonwoven lining being punched out in the form of blanks including the functional apertures, and the cover sheet blank and the nonwoven blank being joined to one another and then folded to form the jacket, wherein the sheet material for the cover sheets is transferred from a magazine, with the aid of mechanical, air-operated grippers provided with positioning means, to an assembly surface and is there positioned, the sheet of nonwoven material from a second magazine is tacked onto the cover sheet material by spot-welding and is then joined thereto over the entire surface by thermal welding, thereafter the cover sheet material thus provided with the nonwoven covering is transferred to a holder frame and then conveyed, with this frame, to a punching device where it is punched out to form a blank provided with the functional apertures, subsequently the b
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: December 8, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Appoldt, Werner Wagner, Karl Hauck, Reinhold Baur