Trenching system
First Claim
1. A method for cutting a narrow trench in a surface using a rotatable blade moveably attached to a frame and disposed within a cavity defined by a hood assembly, the hood assembly comprising a surface engaging member, the method comprising:
- adjusting the blade relative to the surface engaging member to achieve a desired trench depth;
rotating the blade to cut a trench;
positioning the surface engaging member on the surface adjacent the blade; and
applying a downpressure greater than the weight of the hood assembly to the surface bordering the trench at the surface engaging member.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for uncovering and sealing a narrow trench. The system comprises several subsystems, including a work machine, a frame for providing a seal with the surface to be trenched, a saw blade, a vacuum system, a system for placing product, and a resealer. The blade includes rotatable tooth bits, which may be rotated and secured to create a blade for narrower or a wider trench. A removable cover and the blade are easily changeable. A surface engaging member on the frame is manipulated to maintain a seal with changing ground surfaces. Additionally, the vertical location of the blade within the frame is adjustable to create a deeper or shallower trench.
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Citations
25 Claims
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1. A method for cutting a narrow trench in a surface using a rotatable blade moveably attached to a frame and disposed within a cavity defined by a hood assembly, the hood assembly comprising a surface engaging member, the method comprising:
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adjusting the blade relative to the surface engaging member to achieve a desired trench depth; rotating the blade to cut a trench; positioning the surface engaging member on the surface adjacent the blade; and applying a downpressure greater than the weight of the hood assembly to the surface bordering the trench at the surface engaging member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A trenching assembly for creating a narrow trench through an existing surface disposed over a subsurface below the existing surface, the assembly comprising:
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a blade assembly comprising a blade to cut through the existing surface and into the subsurface to create a trench having a width less than 1.5 inches; a hood assembly covering at least a portion of the blade; a surface engaging member provided on the hood assembly proximate the blade; and a hydraulic cylinder supported by the housing and configured to apply downpressure eater than the weight of the hood assembly against the surface bordering a trench. - View Dependent Claims (10, 11, 12)
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13. A trenching assembly for use with a work machine to cut a narrow trench in a surface, the trenching assembly comprising:
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a hood assembly, moveable relative to the work machine, comprising a surface engaging member; and a rotatable blade disposed within the hood assembly to cut the trench; wherein the surface engaging member is positioned to the side of the rotatable blade and wherein the surface engaging member is biased against the surface and applies a downpressure greater than the weight of the hood assembly to the surface bordering the trench while the blade is cutting the trench. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A trenching assembly for cutting a narrow trench in a surface, comprising:
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a hood assembly, having a planar lower surface in which an opening is formed, the opening characterized by an enclosed shape entirely framed around its perimeter by the lower surface; a rotatable blade at least partially positioned within the hood assembly, in which the blade extends through the opening; and equipment configured to provide a downpressure greater than the weight of the hood assembly to a surface adjacent a narrow trench. - View Dependent Claims (20, 21, 22, 23)
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24. A trenching assembly for use with a work machine to cut a trench in a surface, the trenching assembly comprising:
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a hood assembly, moveable relative to the work machine, comprising a surface engaging member; and a rotatable blade disposed within the hood assembly to cut the trench; wherein the surface engaging member is positioned to the side of the rotatable blade; wherein the surface engaging member is biased against the surface while the blade is cutting the trench; and wherein the hood assembly is moveable about three axes relative to the work machine.
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25. A system, comprising:
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a trenching assembly, comprising; a hood assembly, having a planar lower surface in which an opening is formed, the opening characterized by an enclosed shape entirely framed around its perimeter by the lower surface; a rotatable blade at least partially positioned within the hood assembly, in which the blade extends through the opening; a linkage assembly, comprising; a support frame; and a linear actuator having a first end attached to the support frame and a second end attached to the hood assembly; and a vacuum hose; and a trench formed in the ground in which the blade is partially positioned within the trench, in which the linkage assembly presses the lower surface into the ground, and in which the vacuum hose extends through the housing into the trench.
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Specification