Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 26, 2015
Patent Application Number
14158025
Date Filed
January 17, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
An apparatus and method to install contraction joints in concrete slabs. The method uses a device, which inserts a strip of plastic or paper tape into freshly laced concrete, as the device is driven across a concrete slab. The tape is folded immediately prior to being inserted into freshly placed concrete, and functions to weaken the slab at the contraction joint location for the purpose of causing a crack to form in the slab. Plastic tape can be used, which functions as a moisture vapor retarder, and thereby, protects floor coverings from moisture damage, such as mold and mildew, at contraction joint locations.
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