Patents by Inventor A. James Warkentin

A. James Warkentin 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: 7341140
    Abstract: An off-loading conveyor of produce having utility in the discrimination and separation of watermelons includes a support structure defining a conveying path, an endless flexible element mounted on the support structure to extend and to move along the conveying path and support elements mounted to pivot from the conveying path and to move with the endless flexible element along the conveying path. The support elements are mounted to mounts which are attached to the endless flexible element. These elements are pivotally mounted to the mount and extend transversely across the conveying path of the conveyor from pivots in alternation from opposite sides of the conveying path. The support elements include elongate bodies which are pivoted adjacent one end and employ a rotatably mounted wheel adjacent the other end. The wheels define a conveying channel and are able to be lifted by cams upwardly to off load produce from either side of the conveyor.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: March 11, 2008
    Inventor: A. James Warkentin
  • Patent number: 5988351
    Abstract: A conveyor of product units has mounting brackets extending laterally from endless chains. The mounting brackets rotatably mount two spools having axes parallel to the conveying path. The mounting brackets are displaced longitudinally one from another. Consequently, a central elongate cavity is defined along the conveying path between laterally adjacent spools. Further, lateral concavities are presented between rollers on individual spools and between rollers on separate spools. Pivotally mounted off-loading elements can be articulated to lift product units positioned on the conveying system for off-loading laterally from the conveyor. A laterally articulated actuator is located below the principal conveyor. The actuator includes laterally slidable slats which frictionally engage the overlying rollers associated with each mounting bracket. Guides are then arranged to move the slats laterally with motion of the conveyor. With lateral motion of the slats, the rollers are caused to rotate.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: November 23, 1999
    Inventor: A. James Warkentin
  • Patent number: 5181596
    Abstract: An off-loading conveyor including a support structure mounting an endless chain to extend along a conveying path. Roller carriages including roller mounts and laterally extending elements are pivotally mounted to the chain on either side thereof. The laterally extending elements and the laterally extending rollers define cavities for receipt of conveyed product units. The roller carriages and associated rollers are positionable in a first, conveying position and a second, off-loading position. The roller carriages rotate downwardly about axes extending laterally of the chain to achieve the second, off-loading position. Control members pivotally mounted to the chain selectively control rotation of the roller carriages from the first to the second positions upon actuation by a solenoid cam mechanism.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: January 26, 1993
    Inventor: A. James Warkentin
  • Patent number: 4051645
    Abstract: Apples are packaged by introducing them in a water bath in which they float upwardly into an open bottom porous cage. After the cage is filled with apples it is moved laterally in the water bath to an apple loading zone for packaging in a wooden bin. The wooden bin is initially placed at such zone below the apple filled cage. The bin and cage are then raised out of the water to an elevation between a bin feed conveyor and a bin discharge conveyor. When and as the bin is being raised upwardly through the water the apples from the cage fall into the bin and once such apple filled bin reaches the above mentioned elevation an empty bin on the feed conveyor is moved to dislodge the apple-filled bin onto the discharge conveyor with the empty bin then remaining on the elevator and being subsequently moved downwardly through the water to a position below expectant arrival of another apple-filled cage.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: October 4, 1977
    Inventor: Aaron James Warkentin