Patents by Inventor Charles F. Krueger

Charles F. Krueger 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: 6137080
    Abstract: A battery tray for an engine-driven welding machine has two bottom walls separated by a step. When the battery tray is in a closed position, a battery retained on the battery tray is concealed inside the welding machine and the first bottom wall rests on a machine floor. To expose the battery, the battery tray is pulled out an end panel of the welding machine, sliding the first bottom wall on the machine floor until the step is at an outer face of the floor. A slight further pull causes the battery tray to drop the distance of the step such that the second bottom wall contacts the floor. Releasing the battery tray causes flanges on it to abut the machine end panel. The battery tray step and the flanges cooperate with the floor outer face and the machine end panel, respectively, to cantilever support the battery tray outside the welding machine.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: October 24, 2000
    Assignee: Illinois Tool Works Inc.
    Inventors: Ross Borchardt, Charles F. Krueger