B - Operations – Transporting – 25 – D
Patent
B - Operations, Transporting
25
D
121/31, 37/8
B25D 9/04 (2006.01) E21B 7/02 (2006.01)
Patent
CA 1300876
ABSTRACT OF THE DISCLOSURE An apparatus for supporting conventionnal hand-held pneumatic breakers in such a way as to break a concrete slab down to the desired precise depth, The slab can be a building floor, bridge deck, or other slab required to be broken to a predetermined depth. The apparatus comprises a mounting frame adapted to replace the bucket of a mini-loader such that the mounting frame can be positioned at an adjusted level and orientation by the hydraulically operated arms and rams of the mini-loader. The mounting frame has an upper flange from which depend U-shaped guiding brackets between which are guided the transverse handlebar of each breaker. A guide for each drill bit of the breakers is fixed to the mounting frame. The breakers are free to move between a top and a lower limit position relative to the mounting frame. In the lower position the handle bars are supported by the bight of the U-shaped brackets. During the concrete slab breaking work, the drill bit abuts on the slab solely under the bias of the hammer weight; this results in precise drilling.
582641
Martineau Francois
Ricard Sylvio
LandOfFree
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