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Dempster Industries, Inc. Patents
Assignee:
Dempster Industries, Inc.
Address:
Beatrice, NE
No. of patents:
10
Patents:




Patent Number Title Of Patent Date Issued
D294583 Tender March 8, 1988
D279921 Washdown sprayer tank July 30, 1985
D245331 High flotation vehicle for use in agricultural fertilizing or the like August 9, 1977
5485865 Air volume control valve for water system pressure tank January 23, 1996
An air volume control valve apparatus is provided for use with a water system pressure tank. The apparatus includes an elongated tube that is supported on the tank with a first end exposed to an area exterior of the tank and a second end within the tank. A valve is provided for controlli
4629163 Jack for cylindrical tank December 16, 1986
Jack for elongated cylindrical tanks, such as propane tanks, including a jack housing, a jack actuator tube coming out of the jack housing, and an elongated jack foot at a right angle to the jack actuator tube. The jack channel includes a tank support affixed to the jack channel and oppo
4469210 Rotary chute for spreader September 4, 1984
Rotary chute for a spreader where the chute is rotationally adjustable about a spinner axis of a spreader where at any rotational position selected for the chute, the overall geometric relationship of the spinner and chute are geometrically symmetrical. The rotary chute spreads dry m
4367848 Spreader January 11, 1983
Adjustable vane rear chute for use with a dry material spreader including an inversely mounted rear chute with respect to a spinner disc, the rear chute including a plurality of adjustable vanes with respect to a central axis of the spinner disc. The adjustable vanes include a left vane
4332524 Bearing and filter arrangement for submersible pumps June 1, 1982
A sleeve bearing and filter for reducing the wear on a submersible electric pump used to pump fluids containing abrasive materials such as sand. The sleeve bearing receives the upper end of the pump shaft and is equipped with a sintered bronze filter element which restricts the flow of
4212428 Hydraulic power and control system for granular fertilizer spreaders July 15, 1980
A trailer-type vehicle for transporting and dispensing solid materials over the ground includes a self-contained, hydraulic power and control system driven by one of the vehicle's ground engaging wheels which operates a first dispensing mechanism at a selectable speed proportional to the
4019685 Apparatus for synchronizing the speed of a material spreader or the like with the speed of a veh April 26, 1977
A mechanical cam-type apparatus is provided for ensuring even application of agricultural products or the like onto a field or the like from a moving vehicle notwithstanding variations from time to time in the ground speed of the vehicle. The apparatus includes a pair of opposed, yieldab

 
 
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