Patents by Inventor Keith A. Broach

Keith A. Broach 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: 6041528
    Abstract: An ejector-scraper comprising a hopper having an ejector assembly mounted therein for selectively discharging dirt and debris from the interior of the hopper. The ejector is displaced longitudinally through the hopper through a retractable scissors-actuator movably mounted to the rear frame of the ejector-scraper. Suitable links rotatably and slidably couple the actuator to the ejector. The scissor actuator comprises two brackets pivotally coupled at their center points to form an X-shaped lever system. The carriage further comprises pivoting wheel means for selectively raising or lowering the ejector-scraper. The wheel means are attached to the back frame and preferably comprise two pairs of offset, and staggered tires mounted to a rocker in turn pivoted to a V-shaped link. The link is in turn pivoted to a carrier pivotally connected to, and projecting rearwardly from, the scraper. The latter construction enables the wheel means to pivot in response to irregularities in the ground's surface.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: March 28, 2000
    Assignee: Harvey Mfg. Corp.
    Inventor: Keith A. Broach