Patents by Inventor Bruce L. Call

Bruce L. Call 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: 3998729
    Abstract: Liquid manure from an open pit is swept into the tubular housing of a loader by an impeller that rotates adjacent the housing inlet in close proxmity to one stretch of the housing wall that is in concentric relationship with the impeller. Stones larger than a predetermined size are screened from the manure by an arcuate grid that overlies the impeller in concentricity therewith. Thus, instead of ricocheting wildly within the housing following their separation from the manure, the stones are guided smoothly around the impeller and back out the inlet opening.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: December 21, 1976
    Inventors: Thomas A. Bedwell, Bruce L. Call
  • Patent number: 3997118
    Abstract: A liquid manure transport implement is provided with a vertically retractable loader and a spreader which are arranged to fit neatly within the general width and height dimensions of the manure tank on the rear end of the latter. An internally carried conveyor unit, associated with the loader and the spreader, has a pair of parallel, opposite lead augers mounted over the tank bottom in juxtaposition to the latter for swirling and agitating the manure within the tank and for concurrently functioning as conveyors during loading and unloading. The externally disposed spreader has a sump which extends slightly below the bottom of the tank to facilitate delivery of manure to the spreader by the conveyor unit during unloading of the tank.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: December 14, 1976
    Assignee: Hesston Corporation
    Inventors: Thomas A. Bedwell, Bruce L. Call