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Curtis; Don V.
Monroe, MI
No. of patents:

Patent Number Title Of Patent Date Issued
6171024 Injection hopper for use in a material delivery system January 9, 2001
A material injection hopper is adapted for mounting on a movable working arm of a self-propelled vehicle. The injection hopper is carried downwardly by the working arm into a waste storage lagoon to deliver waste-processing material to a predetermined subsurface target area in the la
6152656 Material delivery system November 28, 2000
A material delivery system conveys material from a supply location at or above an area surface to a working location below the area surface. The delivery system includes a supply hopper located at the supply location and having an inlet for receiving material to be conveyed and an outlet
6033154 Waste processing attachment and method for environmentally treating a waste lagoon March 7, 2000
A self-propelled vehicle includes a waste processing attachment. The vehicle is adapted for being moved over a supporting surface, and has a moveable working arm for reaching outwardly from the vehicle and downwardly beneath an adjacent surface of a waste lagoon. The waste processing

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