Patents by Inventor Stephen F. Springston

Stephen F. Springston 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: 5911631
    Abstract: An apparatus and method for transplanting seedling from a first tray to a second tray. The apparatus includes a frame, a moveable carriage connected to the frame, and a conveyor system. In the preferred embodiment, a first conveyor is used to shuttle seedlings into the operative reaches of the apparatus and a second conveyor shuttles the transplanted seedlings out of the operative reaches of the apparatus. The carriage includes a gripper assembly comprised of a plurality of grippers slidably mounted to a guide rod system or track. A positioning mechanism is employed to move the carriage and associated gripper assembly. The grippers includes an upright support and a pair of pivotally connected spaced apart gripper fingers. The gripper fingers are separated by a separating member and can be easily detached from the carriage by a disconnect mechanism.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: June 15, 1999
    Assignee: Bouldin & Lawson, Inc.
    Inventors: Floyd E. Bouldin, Stephen F. Springston, E. Lloyd Bouldin
  • Patent number: 5860372
    Abstract: An apparatus for transplanting seedling from a first ray to a second tray. The apparatus includes a frame, a moveable gantry connected to the frame, and a conveyor system. In the preferred embodiment, a first conveyor is used to shuttle seedlings into the operative reaches of the apparatus and a second conveyor shuttles the transplanted seedlings out of the operative reaches of the apparatus. The gantry includes a gripper assembly comprised of a plurality of grippers slidably mounted to a track. A positioning mechanism is employed to move the gantry and associated gripper assembly. The grippers includes an upright support and a pair of pivotally connected spaced apart gripper fingers. The gripper fingers are separated by a plunger mechanism preferably having a beveled surface for ease of insertion between the gripper fingers.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: January 19, 1999
    Assignee: Bouldin & Lawson, Inc.
    Inventors: Floyd E. Bouldin, Stephen F. Springston