E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
E04C 1/39 (2006.01) B28B 1/14 (2006.01) B28B 7/16 (2006.01) E04C 1/00 (2006.01)
Patent
CA 2594144
Masonry blocks are provided with at least one pre-formed or easily formed opening for an electrical box without requiring that an opening be cut with a saw or a chisel. One exemplary masonry block has at least one integrally molded opening for receiving an electrical box. Another exemplary masonry block has at least one integrally-molded knock-out that provides a selectably removable opening for receiving an electrical box. The knock-out may be formed of the same material from which the masonry block is molded, and may be, for example, formed with a thinned portion of a wall of the block or a plurality of cuts in a portion of a wall shaped the same as the electrical box opening.
Donohew Dana
E.k.b. Designs Ltd.
Ridout & Maybee Llp
LandOfFree
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