Seismic tool assembly for use in anchor insertion

Abstract

A seismic tool assembly for effecting a drill hole and enlarging a lowermost end thereof whereby an anchor can be set more securely therein. A drill bit is inserted through an opening in a cap portion, which is mounted on a stabilizer mounted within at least a portion of the drill hole. The bit is then inserted through each of the cap portion and the stabilizer to attain a drilling position. The bit possesses extra cutting tips on an upper end thereof, with a view to widening the upper end of a drill hole so that a wider flange can be inserted therein, so as to further stabilize and support the stabilizer when limited tilting movement of the bit within the stabilizer is performed during the drilling process.

Description

[0001]The present invention relates to a seismic tool assembly meant to be used for the later insertion and setting of anchors, such as drop-in and wedge type anchors into brittle materials such as concrete, stone, masonry and cementuous materials. More particularly, the present invention relates to a seismic tool assembly for effecting a drill hole and enlarging a lowermost end thereof to have a greater circumference than that of the remainder of the drill hole whereby an anchor can be set more securely therein.BACKGROUND OF THE INVENTION[0002]Anchors are conventionally used in construction to attach various components of a building construction to an overhead ceiling or other structure. Such components to be attached can relate to, for example, services that provide plumbing, electrical, drainage, sprinkler system piping and drop ceilings. From these anchors, which are usually of the wedge or drop-in type variety, all of the above services and ceilings are suspended or secured.[00...

AI Technical Summary

Benefits of technology

"The present invention provides an improved seismic tool assembly for drilling holes and enlarging them for the later insertion and setting of anchors. The assembly includes a bit body, a stabilizer, and a cap portion. The bit body has a quad cutting portion and an upper cutting portion with an operational cutting radius greater than that of the bit body. The stabilizer has a flange portion, a central opening, and a support portion with a recessed surface to permit limited tilting movement of the bit body during drilling. The cap portion covers and surrounds the stabilizer and has a recessed shoulder portion to restrict downward movement of the bit body and allow for tilted controlled rotation. The assembly also includes locking means for stabilizing the bit body and preventing disassembly of the bit body from the stabilizer. Overall, the invention provides a more efficient and effective tool for drilling and enlarging holes for anchoring."

Problems solved by technology

However, when setting such anchors in concrete it is not uncommon for such anchors to weaken and loosen over time, particularly in situations where cracking or chipping of the concrete around the pre-drilled hole has occurred.

Furthermore, studies have revealed that cracking can typically occur in the concrete element, and that such cracks can significantly impact the performance of anchors.

In such situations, the situation can arise where, if one such concrete anchor fails and lets go, the remaining anchors, by virtue of the weight they additionally assume in light of such failure, can also similarly collapse and fail.

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