Patents by Inventor Edwin D. Snead

Edwin D. Snead 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: 5215422
    Abstract: A training idler assembly for a self-unloading train including a first hopper car, a second hopper car, a connector extending between the first hopper car and the second hopper car, a conveyor having a supply run and a return run underlying the first and second hopper cars, and a conveyor training assembly rotatably mounted to the connector. The connector allows relative angular movement of the first and second hopper cars. The conveyor training assembly supports the conveyor. The conveyor training assembly causes an angular adjustment of the conveyor relative to the angular movement of the first hopper car with respect to the second hopper car. The conveyor training assembly is an idler assembly which is rotatably mounted to the connector between the first and second hopper cars. The idler assembly includes a first training idler assembly which supports the supply run of the conveyor and a second training idler assembly supporting the return run of the conveyor.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: June 1, 1993
    Inventor: Edwin D. Snead
  • Patent number: 5197845
    Abstract: A self-unloading train for the transfer of bulk commodities having a plurality of hopper cars coupled together, a train conveyor having an endless belt supported on the hopper cars in a position so as to receive material discharged from the hopper cars, and a conveyor guide positioned adjacent the discharge end of the train conveyor. The conveyor guide exerts a downward force onto the upper surface of the train conveyor. The conveyor guide comprises a frame affixed generally adjacent the discharge end of the train conveyor and a rotatable wheel connected to the frame. The rotatable wheel is in surface-to-surface contact with the upper surface of the train conveyor. A strut is connected to the rotatable wheel so as to adjust the angle of travel of the wheel relative to the curvature of the track and the curvature of the conveyor at the discharge end. Each of the hopper cars is connected to an adjacent car by an articulated coupling and by overlapping side bearings.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: March 30, 1993
    Inventor: Edwin D. Snead
  • Patent number: 5174211
    Abstract: A system for the laying of panel track that includes a plurality of panel tracks, a railroad car containing the panel tracks, and a panel track lifter positioned in the railroad car for lifting the panel tracks from the railroad car and for placing the panel tracks exterior of the railroad car. Each of the panel tracks includes a first rail, a second rail, a plurality of ties extending between and beneath each of the rails, and a plurality of gage rods affixed at various locations along the rails. A tension bar extends angularly between the first and second rails so as to create a curvature in the rails. The railroad car includes a material container having a generally flat floor extending between a pair of side walls. The material container has trucks suitable for rolling along a panel track. The material container is made up of a plurality of railroad cars having a flat floor extending throughout the plurality of railroad cars.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: December 29, 1992
    Inventor: Edwin D. Snead
  • Patent number: 5036775
    Abstract: A cover for a railroad gondola car comprising a central panel, a first end portion extending downwardly from one side of the central panel, a second end portion extending downwardly from the other side of said central panel, a handle connected to the top surface of said central panel, and a locking mechanism connected to said central panel so as to releasably fix the central panel onto the gondola car. The central panel has an inverted V-shaped configuration. The handle is a longitudinal member positioned in the middle of the central panel and extending laterally across the central panel. A plurality of stiffener members extend across the central panel. The central panel includes an extension section that extends outwardly from the central panel at one end beyond the position of the stiffener members. The locking mechanism includes a tie-down strap positioned adjacent the end portion of each panel and another positioned adjacent the opposite end portion of the last panel.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: August 6, 1991
    Inventor: Edwin D. Snead
  • Patent number: 4925356
    Abstract: A unit train consisting of a plurality of hopper cars and a multi-purpose trailer car. The hoppers cars have one or more hoppers each having a bottom discharge opening and a controllable gate. An endless belt conveyor traverses the length of the train including a portion of the trailer car, and underlies the hopper discharge gates so that the hoppers may be emptied sequentially onto the train conveyor to unload the entire train. The trailer car includes a lift portion of the train conveyor to elevate the material for discharge onto a transfer conveyor carried on the trailer car. The elongated transfer conveyor is pivotally mounted at the receiving end to be swung laterally to discharge the material received from the train conveyor at some selected point relative to the trailer car. The trailer car may include the power systems and control systems for operating the conveyors and the hopper gates.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: May 15, 1990
    Inventors: Edwin D. Snead, William B. Snead
  • Patent number: 4800972
    Abstract: Various improvements are disclosed for enhancing accuracy in a system for weighing rolling railcars in order to remedy previous factors contributing to weighing inaccuracies. In a system operative by means of a plurality of longitudinally spaced sensors secured to a predetermined length of relatively unsupported track for measuring track stresses imposed by a passing railcar, accuracy of the weighing result is enhanced by several structural improvements. Included among the improvements is a substructure underlying the live rail that eliminates yield at the fulcrum location from the supported to the unsupported rail. Also included are tandem scales operative sequentially in the path of motion for obtaining readings at selectedly different locations about the circumference of the wheel and from which an averaged signal is obtained for determination of car weight. Signal compensation is also provided for both changes in track temperature and drift in instrument calibration.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: January 31, 1989
    Assignee: Kilo-Wate, Inc.
    Inventor: Edwin D. Snead
  • Patent number: 4416342
    Abstract: A weigh section of a railway track consists of two unsupported spans of conventional rail, produced by removing two adjacent supporting ties for example. The span of the unsupported rails is approximately 64 inches, less than the minimum distance between adjacent axles of a railcar. Four strain gauges are mounted on the under surface of the unsupported rail span of each rail, the four gauges consisting of two pairs of outboard and inboard gauges located in respective halves of the unsupported span. The outputs of the four strain gauges for an unsupported span are summed by adding the outputs of the inboard gauges and subtracting the outputs of the outboard gauges. This sum produces a constant value representative of the load supported on the rail as the axle load moves between the two inboard gauges. A limit switch tripped by a wheel of each axle activates a computer.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: November 22, 1983
    Inventor: Edwin D. Snead
  • Patent number: 4230196
    Abstract: A loader includes a lift arm assembly, raised by hydraulic lift cylinders and carrying a load bucket. Alignment members mounted respectively on the loader frame and lift arm assembly, and visible to the loader operator, identify the weigh position of the lift arm assembly. A pressure to voltage transducer is mounted on one lift cylinder, and is connected in a bridge circuit producing a DC voltage output. The bridge circuit output signal, proportional to the bucket load, is fed to an amplifier, whose output is passed to an analog-to-frequency converter producing pulses at a frequency proportional to the bucket load. An electronic clock allows the converter output pulses to pass through an AND gate to a bucket counter which displays the bucket load, and is automatically reset to zero. The converter pulses are passed to an accumulator counter through a second AND gate.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: October 28, 1980
    Inventor: Edwin D. Snead