Patents by Inventor Steven Vann Schroader

Steven Vann Schroader 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).

  • Publication number: 20090159404
    Abstract: A conveyor system can includes a feed conveyor, a declined conveyor, and an inclined conveyor. A declined stationary surface is suspended above the declined conveyor and positioned to exert a counter-moment on the articles related to the weight of the stationary support surface and the coefficient of sliding friction of the stationary support surface that is sufficient to resist forward rotation of the articles down the declined conveyor. An inclined stationary support surface is suspended above the inclined conveyor and positioned to exert a forward-moment on the articles related to the weight of the stationary support surface and the coefficient of sliding friction of the stationary support surface that is sufficient to resist counter-rotation of the articles that results in movement of the articles down the inclined conveyor. The vertical height of the stationary surfaces can be adjusted. A related method is also described.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventor: Steven Vann Schroader
  • Patent number: 6910568
    Abstract: A diverting system for displacing articles from a conveying surface including a diverter blade adapted to be rotated about a rotary axis from a retracted position along the edge of the conveying surface to an extended position to displace the articles, the diverter blade having a pusher surface spaced apart from the rotary axis by a connecting portion of the blade. A section of the connecting portion located immediately downstream of the rotary axis extends away from the edge in the blade's retracted position to form a void, so that when the blade is in an extended position for diverting a leading (downstream) article, the presence of the void prevents contact between the diverter blade and a trailing (upstream) article. The trailing article can travel downstream past the axis even while the blade is in the extended position. Thus, the trailing article can be positioned closer to the leading article without risk of contacting the blade, thereby increasing the throughput of the system.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: June 28, 2005
    Assignee: Sandvik AB
    Inventors: Edward Ydoate, Steven Vann Schroader
  • Patent number: 6491154
    Abstract: An unstacking apparatus includes a feed conveyor for feeding stacks of items, and a decline unstacking section including at least first and second declined conveyors arranged in series. A stack of items being transferred from the feed conveyor to the first declined conveyor tilts forwardly to cause the items to slide forwardly off one another into a shingle arrangement on the first declined conveyor. The second declined conveyor includes an upstream end which is offset upwardly relative to a downstream end of the first declined conveyor, causing items to travel upwardly in order to pass from the first to the second declined conveyors. The second declined conveyor travels at a faster speed than the first declined conveyor for at least partially de-shingling the items. A transfer conveyor conveys items to an incline unstacking section which includes at least first and second incline conveyors arranged in series.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: December 10, 2002
    Assignee: Sandvik Sorting Systems, Inc.
    Inventors: Edward Ydoate, Steven Vann Schroader, Jonathan D. Terrell
  • Publication number: 20020079194
    Abstract: An unstacking apparatus includes a feed conveyor for feeding stacks of items, and a decline unstacking section including at least first and second declined conveyors arranged in series. A stack of items being transferred from the feed conveyor to the first declined conveyor tilts forwardly to cause the items to slide forwardly off one another into a shingle arrangement on the first declined conveyor. The second declined conveyor includes an upstream end which is offset upwardly relative to a downstream end of the first declined conveyor, causing items to travel upwardly in order to pass from the first to the second declined conveyors. The second declined conveyor travels at a faster speed than the first declined conveyor for at least partially de-shingling the items. A transfer conveyor conveys items to an incline unstacking section which includes at least first and second incline conveyors arranged in series.
    Type: Application
    Filed: December 26, 2000
    Publication date: June 27, 2002
    Inventors: Edward Ydoate, Steven Vann Schroader, Jonathan D. Terrell
  • Patent number: 6131723
    Abstract: Packages are conveyed in a direction of travel by transferring the packages from an upstream conveying surface to an intermediate conveying surface, conveying the packages along the intermediate conveying surface, and transferring the packages from the intermediate conveyor surface to a downstream conveying surface. A discharge member situated along at least one laterally outer edge of the intermediate conveying surface is driven such that a discharge surface thereof situated above the intermediate conveying surface moves in a direction away from a center line of the intermediate conveyor and pulls wide packages from the intermediate conveying surface, i.e., packages having a width great enough to contact the discharge surface.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: October 17, 2000
    Assignee: Sandvik Sorting Systems, Inc.
    Inventors: Steven Vann Schroader, Edward Ydoate
  • Patent number: 5964338
    Abstract: A conveying system includes first and second straight side supports arranged parallel to one another on opposite sides of a longitudinal axis. A plurality of roller structures is provided, each having opposite ends mounted in respective ones of the side supports. An endless web is mounted for travel along the rollers in the direction of the longitudinal axis. Each roller structure is associated with a set of mounting holes formed in the side supports, whereby each set comprises a first series of holes formed in the first side support and a second series of holes formed in the second side support. One end of the roller structure is mounted in a selected one of the holes of the first series, and the other end of the roller structure is mounted in a selected one of the holes of the second series. Each hole of the first series is aligned with a respective hole of the second series to form a pair of aligned holes.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: October 12, 1999
    Assignee: Sandvik Sorting Systems, Inc.
    Inventor: Steven Vann Schroader