Patents by Inventor Allen D. Hardman

Allen D. Hardman 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: 5158169
    Abstract: A drum assembly and method for conveying magnetically susceptible can bodies from a first location where the can bodies are generally vertical to a second location where the can bodies are generally horizontal. The drum assembly includes a hollow, non-magnetic, generally cylindrical drum; an axle for rotating the drum; and a fixed magnet inside the drum. Can bodies are attached to the drum outer surface portion by magnetic attraction at the first location; rotated to the second location; and separated from the drum at the second location by limiting proximity of the fixed magnet and the drum to an arc of only approximately 90.degree.-110.degree..
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: October 27, 1992
    Assignee: The Stolle Corporation
    Inventor: Allen D. Hardman
  • Patent number: 4955762
    Abstract: An air conveyor assembly whereby objects are transported on the top deck of an elongated plenum. The plenum is pressurized by a high-performance wheel fan member contained entirely within the plenum driven by a motor contained entirely within a filter housing located on the bottom wall of the elongated plenum.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: September 11, 1990
    Assignee: Raymond Production Systems Corporation
    Inventor: Allen D. Hardman