Patents by Inventor Warren DuBroff

Warren DuBroff 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: 4230519
    Abstract: An apparatus for applying strips of tape around objects positioned adjacent the apparatus. A pair of tape holding reels are supported for movement in a path extending around the position occupied by the object. A tape end is applied to a surface of the object, and drive means are then operated for moving the tape reels around the object. The tape is thereby unreeled and automatically applied to the object surface. At the end of the track, or other means defining the path, severing means are utilized for separating a severed end from a reel whereby this severed end can be attached to an object surface to thereby complete the tape applying operation. The respective reels are inverted relative to each other with one reel being utilized for application of tape during movement of the reels in one direction and with the other reel being utilized for application of tape during movement in the opposite direction.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: October 28, 1980
    Assignee: Lathrop Paulson Company
    Inventor: Warren DuBroff
  • Patent number: 3980204
    Abstract: An apparatus for dispensing articles such as cafeteria trays comprising a lower supporting structure upon which a plurality of trays are stacked. An upper supporting structure is provided for holding the stack of trays in a vertical or upwardly extending alignment, and a dispensing opening is defined between the upper and lower supporting structures. A threaded element is adapted to engage the bottom edge of the forwardmost tray in a stack and to thereby pivot the tray about the upper supporting member for passing of the tray through the dispensing opening. Means such as a conveyor comprising part of a tray washing machine are positioned for collecting the trays dispensed.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: September 14, 1976
    Assignee: Avant Industries, Inc.
    Inventors: Warren DuBroff, Ralph Ettlinger, Jr.