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US 4,331,342 AGranted
Tank wagon
OwnerCornelis van der Lelyinventor
Life of this patent
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OwnerCornelis van der Lelyinventor
Estimating the term…
A tank wagon for liquid material has interior partitions with dampeners to counteract movement and kenetic energy of the material with respect to the tank in one direction only. In this way, energy can be withdrawn from the liquid material movement during braking for instance, to mitigate adverse effects of such movement. In the embodiment detailed, partitions having openings are closed by hinged flaps during braking. Normally the flaps are gravity-urged to an open position. The tank can be composed of two compartments with different cross sections and length so that a lower and smaller compartment is located directly above a set of wheels. The larger compartment is contiguous with the upper part of the smaller compartment and is angled upwardly and forwardly. Thus, the lowermost portion of the larger compartment can be at the approximate level of the wheel axes.
A tank wagon comprising a frame movable over the ground and a tank for transporting liquid material being mounted on said frame, partition means in said tank that divides material in the tank into portions, said partition means having a lower opening and flap means positioned to at least partly close the opening during deceleration of the wagon's forward travel to dampen the flow of material in the tank in only one direction, said flap means being hinged to the remainder of said partition means and pivotable about a horizontal pivot axis that extends transverse to the direction of wagon travel, said pivot axis being located above the flap means said flap means being freely pivotably about the pivot axis when the tank is empty, the center of gravity of the flap means being located below said pivot axis and said flap means normally being pivoted by gravity at least partly open to expose the opening during the acceleration or the rest position of said wagon and allow liquid to flow from one side of the partition to the other.
A tank wagon comprising a frame movable over the ground and a tank for transporting liquid material being mounted on said frame, partition means in said tank that divides material in the tank into portions, said partition means having a lower opening and a flap positioned to at least partly close the opening during deceleration of the wagon's forward travel to dampen the flow of material in the tank in only one direction, said flap being hinged to the remainder of said partition means pivotable about a horizontal pivot axis that extends transverse to the direction of wagon travel, said pivot axis being located above the flap and said flap being freely pivotable about the pivot axis when the tank is empty, the center of gravity of the flap being located below said pivot axis and said flap being configured whereby the flap is pivoted by gravity at least partly open to expose the opening during the acceleration or the rest position of said wagon and allow liquid to flow from one side of the partition to the other.
An elongated tank for transporting liquid material including at least one internal upwardly extending partition that divides material in the tank into two portions, said partition comprising a flap that dampens the flow of material in the tank in only one direction, said partition having an opening and said flap being pivoted to an adjacent portion of the partition to freely pivot about a generally horizontal axis and more or less close said opening, said flap comprising an upper part that is located adjacent the partition portion and a lower portion that extends towards one tank end, ballast supported on said flap above the lower edge of said flap, the center of gravity of said flap being located to pivot the flap to a neutral position and expose said opening, whereby liquid material can flow through the opening from one portion to the other portion, towards the opposite tank end, stop means in said other tank portion, adjacent said opening, said stop means being positioned to arrest the pivoting of the flap towards said opposite end before said opening is completely closed by the flap during liquid material surge towards said opposite end.
Dependencies are inferred from the claim text.