Patents by Inventor Marland R. Johnson

Marland R. Johnson 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: 5599011
    Abstract: A sheet feeder (10) includes a frame (26) with an inclined surface (94) for supporting a stack of sheets to be fed and a feed roller (96) mounted on the frame (26). A retard roller (106) is mounted adjacent to the feed roller (96) and cooperates therewith to define a nip (108) for receiving a forward edge of the bottom sheet in the stack. Upright guides (116, 119) are mounted on the frame (26) and are engageable with a forward edge of a stack of sheets supported on the inclined surface (94). The guides (116, 119) are disposed at an acute angle with respect to the inclined surface (94) so that when the forward edge of the stack engages the guides (116, 119) the sheets automatically shift longitudinally relative to each other to facilitate feeding of a single sheet into the nip (108).
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: February 4, 1997
    Assignee: Uarco Incorporated
    Inventors: Richard E. Schnorr, Marland R. Johnson
  • Patent number: 4479597
    Abstract: A burster including spaced infeed and outfeed pairs of rollers in fixed spacial relationship with respect to each other which are driven by a system including a variable, limited lost motion connection to the infeed rollers. The connection includes a long-lived tooth and stop assembly wherein impacting surfaces of the tooth and the stop members are configured to minimize shear stresses occurring in the tangential direction in favor of readily absorbed radial stresses to thereby provide a long-lived apparatus.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: October 30, 1984
    Assignee: Uarco Incorporated
    Inventors: Marland R. Johnson, Donald J. Nauheimer