Cylinder assembly for tilting a vacuum tank
AssigneeThe Charles Machine Works, Inc.
InventorsLance D. Littlewood, Levi J. Krutzfeldt
Life of this patent
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Abstract
A dual-cylinder tilting assembly for use with a vacuum tank. The tank is mounted on a frame, such as a trailer or a truck bed, at a pivotal connection at its end. A door is disposed near the end with the pivotal connection. The tilting assembly is at the other end, and has two cylinders with their rods facing alternate directions. The rod of one of the cylinders is pivotally attached to the frame and the rod of the other is pivotally attached to the tank. The barrels of the two cylinders are joined physically and hydraulically linked. The cylinder assembly, when fully extended, extends approximately three times its unextended length and tilts the tank at an angle of thirty to fifty degrees.
Claims20
A cylinder assembly comprising:
- a first cylinder comprising a first barrel and a first rod extendable from the first barrel in a first direction;
- a second cylinder comprising a second barrel and a second rod extendable from the second barrel in a second direction opposite the first direction;
- wherein the first barrel and the second barrel are fixed relative to one another;
- and
- wherein a fully extended length of the cylinder assembly is greater than twice a retracted length of the cylinder assembly.
A vacuum system comprising:
- a frame;
- a tank supported by the frame and pivotally attached thereto at a pivot point;
- and
- a cylinder assembly comprising:
- a first cylinder having a first barrel and a first rod pivotally connected to the frame at a first connection point;
- and
- a second cylinder having a second barrel and a second rod pivotally connected to the tank at a second connection point,
- wherein the first barrel and the second barrel are fixed relative to each other;
- and
- wherein the second connection point crosses a vertical plane passing through the first connection point when the cylinder assembly extends from a retracted condition to an extended condition.
A vacuum system, comprising:
- a frame;
- a tank supported by the frame and pivotally attached thereto at a pivot point, the tank configured to receive spoils;
- and
- a cylinder assembly connected at a single pivot point to the frame and connected at a single pivot point to the tank, the cylinder assembly comprising:
- a first rod extendable in a first direction;
- and
- a second rod extendable in a second direction;
- such that extension of the first rod and the second rod causes the tank to tilt relative to the frame.
Dependencies are inferred from the claim text.