Patents by Inventor Richard W. Sitler

Richard W. Sitler 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: 4155607
    Abstract: A filing system for supporting material to be filed in vertical zones, such material being single sheet material, multiple sheet material held in a binder, vertically arranged horizontally extending pockets or compartments of single or multiple form. A support bar is positioned transversely of the vertical filing zones and supported at opposite ends, the support bar having a longitudinally extending web in a vertical plane normal to said vertical zone and having dihedrally disposed flanges extending from said web along its length in opposite directions. The flanges are shaped to provide upwardly facing bearing contact areas and downwardly facing bearing contact areas spaced from the vertical plane, each downwardly facing contact area being located to be cooperable with an upwardly facing contact area on the opposite side of the vertical plane to provide a set of bearing contact areas for supporting a suspension means connected to the material to be filed.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: May 22, 1979
    Assignee: Plan Hold Corporation
    Inventors: Richard W. Sitler, Sigurd A. Johnson
  • Patent number: 3994547
    Abstract: A single point suspension device for filing sheet material in parallel vertical planes within or without a cabinet construction in which a horizontal support bar has a sidewardly opening longitudinal recess defined in part by a sidewardly extending hook and in which is received a suspension member attached to upper edge margins of sheet material to be filed. The suspension member includes a sidewardly directed recess defined in part by a hook, the hooks and recesses of the suspension member and the support bar being correspondingly configured for substantially complete interlocking interengagement along correspondingly configured surfaces and whereby the interengagement is accomplished with relative horizontal movement of the bar and suspension member, and wherein the interlocking engagement restricts angular relative movement of the support bar and suspension member.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: November 30, 1976
    Assignee: Plan Hold Corporation
    Inventor: Richard W. Sitler