Patents by Inventor Garland J. Harrington

Garland J. Harrington 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: 6227354
    Abstract: An assembly for supporting the drive or idler shaft in an endless conveyor, such as an armored face or scraper chain conveyor, is provided. The assembly includes a pair of annular bearing housings having central bores for receiving the ends of an idler shaft carrying dual spaced inner, or single twin inboard sprocket rings. Each bearing housing includes a relatively wide integral support arm for insertion into a corresponding C-shaped bracket attached to the end face of the conveyor frame. Fasteners, such as dowel pins and bolts, are inserted into aligned vertical apertures formed in the cooperating support arms and brackets. In the mounted position, the bearing housings fully support the shaft ends independent of the conveyor frame sidewalls and thus are useful with conveyors having sidewalls spaced any distance apart. The independence provided by moving the bearing housings inward permits a shorter and consequently lighter shaft to be used and one that is less prone to deflection.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: May 8, 2001
    Assignee: Longwall-Associates, Inc.
    Inventors: Kevin Howden, Garland J. Harrington