Patents by Inventor Earl K. Hoyne

Earl K. Hoyne 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).

  • Camera with image input from linear array of electric-to-light transducers
    Patent number: 4912488
    Abstract: Camera apparatus including a housing within which an exposure station is provided with a film handling means provided at the exposure station for supporting and disposing a strip of film and a linear array of electric-to-light transducers disposed to direct light from the array to the strip of film as it is moved past the exposure station. Another embodiment employs two linear arrays of electric-to-light transducers which are used to expose separate areas of the film as it is moved past the exposure station.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: March 27, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert S. Berglund, Earl K. Hoyne
  • Electrographic stylus recording apparatus
    Patent number: 4649402
    Abstract: An electrographic stylus recording apparatus producing a toner powder image on a receptor belt wherein non-imaging toner powder is collected at a cylindrical sleeve located downstream from the stylus array and is subsequently returned from the cylindrical sleeve to the upstream side of the stylus array by depositing toner powder from the cylindrical sleeve onto the receptor belt by adjustment of the toner powder on the cylindrical sleeve relative to the space between the cylindrical sleeve plus the application of a d.c. voltage to the cylindrical sleeve.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: March 10, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George G. Lunde, Earl K. Hoyne, Charles K. Nordeen
  • Electrographic stylus recording apparatus
    Patent number: 4646112
    Abstract: Electrographic stylus recording apparatus for producing a magnetically attractable toner powder image on a receptor belt including two rotatable cylindrical sleeves, each having a non-rotatable magnetic roll, with one sleeve positioned adjacent the upstream side of a stylus array and the other sleeve adjacent the downstream side with each of such sleeves adapted for connection to a d.c. source, the upstream sleeve being connected to a d.c. source to place toner powder on the receptor belt for delivery of toner powder to the stylus array when a toner image is to be made and the downstream sleeve being connected to a d.c. source to place toner powder on the receptor belt from such sleeve for return to the upstream side of the stylus array via the receptor belt. The magnet rolls within the sleeves are positioned to provide like magnetic poles to the stylus array to provide a magnetic flux at the recording ends of the styli in the array.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: February 24, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Earl K. Hoyne, Charles K. Nordeen, James D. Young