Patents by Inventor Carl E. Rhoades

Carl E. Rhoades 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: 4097143
    Abstract: A step-and-repeat camera wherein the multiple exposure frame format can be varied and preset by the operator. Thus, the number of exposure frames per column and the number of columns per fiche can be varied as desired so as to accommodate the sizes of different sets of materials to be photographed, for example. Means are provided for blanking out specific areas in fiche to accommodate title placement or other identification, spacing between successive sets of materials, and so forth. Visual means are provided for identifying a particular frame about to be exposed, and also for separately identifying successive exposures on the fiche film itself. Other improvements herein include an improved vacuum platen that accurately positions the film for proper exposure at a desirably reduced plan area. Film spool and film take-up cartridges with associated equipment are supplied in improved structural design.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: June 27, 1978
    Assignee: Microfilm Service Corporation
    Inventors: Vernon G. Buchanan, Carl E. Rhoades