Patent ID: 8784001
Filing Date: 2014-07-22
Classification: E01C,E04B,E21B

Abstract:
1. An oil field mat assembly having a pair of interlocking full mats connected by interlocking half mats, wherein each full mat comprises: a) a bottom layer comprising: b) a bottom interlocking segment formed on the bottom layer comprising: c) a middle layer formed from a plurality of middle layer boards forming a middle layer orientation at a right angle to the bottom layer orientation; d) an alignment control means to maintain a preset geometric shape, wherein the alignment control means is disposed between the middle layer and the bottom layer; e) a top layer comprising a plurality of top beveled boards forming a top layer orientation at a right angle to the middle layer orientation; f) a top interlocking segment formed on the top layer on the same side that the top layer connects to the middle layer, wherein the top interlocking segment comprises: g) an anti-curling bar to prevent curling by the top layer mounted between the middle layer and the top layer connecting across all of the boards of the top layer and the middle layer.