Patents by Inventor Leonid I. Melnikov

Leonid I. Melnikov 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).

  • Apparatus for orienting parts in feeding devices of various units
    Patent number: 4944382
    Abstract: A distinguishing feature of an apparatus for orienting parts resides in the provision of members for picking-up improperly oriented parts in the form of identifying and limiting cams and of a reorienter which are located in a gap in guide and confining members which are offset downstream the gap in the direction of rotation of a vertically extending screw conveyor, the picking-up members being mounted in such a manner that the parts being oriented which have asymmetrical surface configuration with respect to a plane drawn through the middle thereof, at right angles to the axes thereof, and which are fed in improperly oriented position are engaged by these picking-up members, whereas the parts which are properly oriented are caused to pass by the reorienter.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: July 31, 1990
    Inventors: Vladimir T. Gradoboev, Leonid I. Melnikov, Alexandr M. Klimenov, Alexandr E. Sitnikov
  • Apparatus for orienting discrete products in feeding units of plants
    Patent number: 4911282
    Abstract: A distinguishing feature of the device for orienting piece products resides in its being provided with a vertical feed screw, a guide and a restrictor aimed at assigning a required transit position to the products being oriented as well as a device for removal of the properly oriented products located in close proximity to the feed screw, a curvilinear restrictor being interposed between the device for removal of the properly oriented products and the feed screw, said curvilinear restrictor having at least one opening aimed at kicking out correctly and wrongly oriented products therethrough, the former products being free to pass to the device for removal of properly oriented products, whereas the latter products get in engagement with the side face of the opening, become oriented in a correct position and then are free to pass to the device.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: March 27, 1990
    Inventors: Leonid I. Melnikov, Alexandr M. Klimenov, Vladimir T. Gradoboev, Alexandr E. Sitnikov
  • Charging-and-conveying means
    Patent number: 4690267
    Abstract: The charging-and-conveying device includes screws (5 and 6) effecting the removal of piece articles (3) from a bulk pile (2) and positioned relative to each other with their turns mutually overlapping, the screws rotating towards each other. Positioned in the overlap zone is a member (16) orienting the articles (3) being conveyed. The device further includes screws (8 and 9) having an area for accumulation of the latter. Guides (21 and 21a) are arranged along the screws (8 and 9).
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: September 1, 1987
    Inventors: Vladimir T. Gradoboev, Alexandr E. Sitnikov, Alexandr M. Klimenov, Leonid I. Melnikov