E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
72/87
E04B 5/16 (2006.01)
Patent
CA 2033556
ABSTRACT OF THE DISCLOSURE An apparatus for forming voids in concrete and the method of using the apparatus. The apparatus includes baseplates secured to a wood supporting deck or form for a concrete floor by a plurality of removable screws in a location determined by the plans of the concrete floor which usually requires the formation of various voids, cavities, openings or holes in the floor and a removable sleeve attached to each baseplate and having a height generally equal to the thickness of the floor with the upper end of the sleeve being accessible and observable when concrete is poured. In using the apparatus, the baseplates are affixed to the wood deck in accordance with the plans for the floor after the wood deck has been placed in position to receive poured concrete. After the baseplates have been secured in place, various subsequent work procedures may be carried out without the workers encountering obstructions that would exist if upwardly projecting cavity forming members were attached to the wood deck. Such work procedures include the positioning of reinforcing bars, cables and the like which have a tendency to dislodge and damage any upward projections on the wood deck. After all work procedures have been performed on the wood deck, including positioning of rebars, a sleeve is attached to each baseplate immediately prior to pouring concrete thereby eliminating the problem of upwardly projecting cavity forming members on the wood deck being displaced or damaged during work procedures prior to pouring concrete. After the concrete has been poured and set, the sleeves are detached from the baseplates and removed. The wood deck can then be stripped from the bottom of the concrete floor with the baseplates still attached thereto. The baseplates are then removed from the wood deck panels and the baseplates and sleeves are capable of reuse. In other situations, The baseplates can be detached from the wood deck before the wood deck is stripped by using a long screwdriver to remove the screws after which the baseplate can be lifted out of the cavity. If a "flying form" is used, the baseplates can remain attached to the deck.
Cass Ronald L.
Mccarthy Tetrault Llp
LandOfFree
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