Patents by Inventor Albert Schuch

Albert Schuch 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: 4730919
    Abstract: A folding slide viewer has a rear projection screen which swings into a ft position for storage. In a second, operating position, the projection screen it is provided with a lightproof bellows. The optical axis of the lens system is inclined at an angle with respect to the horizontal base of the housing. A reflector is along the optical axis of the lens system, when the screen is in its operating position, to reflect an image onto the screen. An image trap is swingable between a first position perpendicular to a longitudinal axis of the slide magazine and a second position perpendicular to the optical axis of the lens system.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: March 15, 1988
    Assignee: Patent-Treuhand-Gesellschaft fur Elektrische Gluhlampen m.b.H
    Inventor: Albert Schuch
  • Patent number: 4083516
    Abstract: A mounting for a supply reel and a take-up reel in a camera, projector or other recording or reproducing apparatus comprises two coaxially juxtaposed mandrels of substantially the same diameter cantilevered for independent rotation on a common support. The outer mandrel carries one or more radially retractable detents whose withdrawal from a projecting position enables the take-up reel to be fitted onto the inner mandrel and which thereafter form a stop for the supply reel, thereby preventing the two reels from contacting each other. The withdrawal of the detents, or the removal of an abutment blocking such withdrawal, may be carried out as a separate operation; alternatively, withdrawal may be blocked automatically upon the emplacement of a reel on the inner mandrel.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: April 11, 1978
    Assignees: Karl Vockenhuber, Raimund Hauser
    Inventors: Albert Schuch, Harald Hohenecker, Herbert Riegler, Friedrich Weirich