Device for cutting filler material from concrete joints

Road structure – process – or apparatus – Process – Providing expansion joint

Patent

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Details

404 89, 37903, 37404, 172253, E01C 1102

Patent

active

061133086

ABSTRACT:
A device for cutting filler material from concrete joints comprises a blate attached to the front of an elongated arm, the elongated arm is pivotably joined to a mounting plate. The elongated arm is limited in its movement by a retention bar located on a front edge of the mounting plate and a spring which biases the elongated arm toward the center of the mounting plate. An attachment lip is provided on the front edge of the mounting plate to assist in securing the mounting plate to a bucket of a power machine such as a front end loader. Bolts extending through the mounting plate and a rear turnbuckle also assist in securing the device to the bucket. Mounting is accomplished by placing the mounting plate in the bucket and hooking the lip around the front edge and under the bottom of the bucket. The rear turnbuckle includes a V-plate that engages the top rear of the bucket along the top rear edge. Elongation of the rear turnbuckle provides substantial pressure from the V-plate to the mounting plate and assists in securing the invention in the bucket. The bolts extending through the mounting plate may be tightened such that the bolts engage the surface of the bucket and further assist in securing the invention in the bucket. After mounting, the blade is placed in the side of an expansion joint, and movement of the power machine causes the blade to carve along the side of the expansion joint. Repeating this process along the opposite side of the joint sufficiently loosens or removes the filler material such that the filler material may be easily pulled from the joint.

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