Patents by Inventor David P. Herigstad

David P. Herigstad 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: 6569072
    Abstract: A partition making apparatus includes a first card material supply module, a first card forming module including a slot former, a singulator and a card transporter. The first card forming module also includes a feeder for advancing a band of first card forming material at least partially through the first module. The first module may include a transporter which shifts singulated first cards from a first location to a card delivery location with a card transferor shifting sets of first cards to be included in an assembled partition from the first card forming module to an assembly station. The sets of first cards may be advanced along a conveyor included in the assembly station to a second card insertion location. The second card material supply module provides a band of second card forming material to a second card forming module.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: May 27, 2003
    Assignee: Kay Packaging Company, Inc.
    Inventors: Phillip Dale Rupp, Michael D. Riley, David P. Herigstad, George Walter Herigstad
  • Patent number: 5044862
    Abstract: The invention involves a method of and apparatus for transferring rolls of various sizes from a roll delivery vehicle to a spindle of a reel stand. A transfer table with articulated arms lifts the roll off of the vehicle and aligns the roll both in the vertical and horizontal directions so that the longitudinal axis of the roll coincides with the axis of the spindle. A unique clam shell linkage of the articulated arms allows the transfer table to handle different diameter rolls and position the different diameter rolls on spindles of different heights.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: September 3, 1991
    Assignee: Haines & Emerson, Inc.
    Inventors: David P. Herigstad, James D. Terry
  • Patent number: 5009563
    Abstract: A mobile vehicle is provided with a cradle that can be tilted or rotated. The cradle can also be raised and lowered. The cradle has leaves which are upwardly and outwardly sloping to handle a large cylindrical paper roll by allowing the roll to roll down and center itself in the cradle.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: April 23, 1991
    Assignee: Haines & Emerson, Inc.
    Inventors: Marvin L. Case, Robert E. Sturm, David P. Herigstad
  • Patent number: 4863335
    Abstract: A low-profile, automatically guided vehicle is provided with a vertically raisable cradle which can carry a roll either in a bilge position or an upright position. The vehicle is used in a roll-handling system which enables the vehicle to pass beneath the spaced, parallel arms of a storage rack that can be holding a roll either in the upright or bilge position. The vehicle can pass beneath a set of rolls on the storage racks so that passage of the vehicle either for depositing a paper roll or lifting a paper roll from the storage rack can be in a single, common direction. A transfer table is provided which has articulated arms that can be vertically raised. The arms can be moved lengthwise to the direction of the lengthwise axis of the roll in a bilge position, the arms can be raised vertically, or the arms can be carried moved to the lengthwise axis of the roll on the transfer table.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: September 5, 1989
    Assignee: Haines & Emerson, Inc.
    Inventors: David P. Herigstad, Robert E. Sturm