Skimmer
First Claim
1. A skimmer comprising:
- a frame including a pair of side walls;
a shearing blade mounted by said frame side walls for substantially vertical, reciprocal motion relative to said frame side walls; and
a pushing blade mounted by said frame side walls for reciprocal pivotal motion relative to said frame side walls, wherein said shearing blade is positionable in the ground for shearing the soil above the blade from the soil beneath said blade to create a sheared soil layer while leaving the sheared soil layer substantially in place.
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Accused Products
Abstract
Apparatus and method for shearing a soil layer and removing it is provided. An apparatus in accord with the present invention has a frame mounting a shearing blade reciprocally movable substantially vertically into an operational position where the shearing blade will extend below the ground surface to shear the layer of soil above the shearing blade from the soil beneath it. An apparatus will also have a pushing blade mounted for use in pushing sheared soil. In a method in accord with the present invention, apparatus is provided that includes a shearing blade and a pushing blade. Each of the blades is positionable in operational and non-operational positions. The pushing blade is placed in its non-operational position and the shearing blade is placed in the operational position and is used to shear an upper layer of soil to a desired depth to produce a sheared soil layer and to create a new surface layer below the sheared soil layer. The shearing blade is then placed in its non-operational position and the pushing blade is placed in its operational position and is used to push the sheared soil layer off the new surface layer.
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Citations
22 Claims
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1. A skimmer comprising:
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a frame including a pair of side walls;
a shearing blade mounted by said frame side walls for substantially vertical, reciprocal motion relative to said frame side walls; and
a pushing blade mounted by said frame side walls for reciprocal pivotal motion relative to said frame side walls, wherein said shearing blade is positionable in the ground for shearing the soil above the blade from the soil beneath said blade to create a sheared soil layer while leaving the sheared soil layer substantially in place. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A skimmer comprising:
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a frame including a pair of side walls;
a shearing blade apparatus including a shearing blade, said shearing blade mounted by said frame side walls for substantially vertical, reciprocal motion relative to said frame side walls, said shearing blade comprising at least bottom, front and rear shearing blade surfaces, wherein the intersection of the front and bottom shearing blade surfaces provides a front cutting edge and the intersection of the rear and bottom shearing blade surfaces provides a rear cutting edge; and
a pushing blade apparatus including a pushing blade, said pushing blade mounted by said frame side walls for reciprocal pivotal motion relative to said frame side walls, wherein said shearing blade is positionable in the ground for shearing the soil above the blade from the soil beneath said blade to create a sheared soil layer while leaving the sheared soil layer substantially in place. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A skimmer comprising:
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a frame including a pair of side walls;
a shearing blade apparatus including a shearing blade, said shearing blade mounted by said frame side walls for substantially vertical, reciprocal motion relative to said frame side walls and including a pair of ends and said shearing blade apparatus includes a pair of shearing blade end plates attached to said shearing blade ends; and
a pushing blade apparatus including a pushing blade, said pushing blade mounted by said frame side walls for reciprocal pivotal motion relative to said frame side walls;
wherein each said frame side wall includes a pair of guide plates attached thereto, each said guide plate pair being space apart to slidably receive therebetween a shearing blade end plate. - View Dependent Claims (21, 22)
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Specification