Patent ID: 9339896
Filing Date: 2016-05-17
CPC Classification: B23P,C08L,E01C,E21B,Y10T

Claim Text:
1. A method for making an oil field mat from a plurality of synthetic boards comprising the steps of: a. blending together ranging from 20 minutes to 40 minutes: b. heating the blend to a temperature ranging from 350 degrees Fahrenheit to 400 degrees Fahrenheit forming a molten blend; c. injecting the molten blend into a board mold; d. slowly quenching the molten blend in the board mold; e. removing the board from the board mold; f. cooling the board for twenty-four hours at an ambient temperature; g. sizing the board; h. forming a groove in the board; i. drilling holes for fasteners and connectors into the board; j. forming a bottom layer of a first mat in a jig, wherein the bottom layer comprises a bottom layer orientation, and wherein the bottom layer further comprises: a plurality of identical bottom layer boards connected in parallel; k. forming a first interlock assembly secured to the bottom layer of the mat, wherein the first interlock assembly comprises: l. forming a middle layer from a plurality of parallel middle layer boards forming a middle layer orientation at a right angle to the bottom layer orientation; m. forming a second interlock assembly when the middle layer is formed on a side of the mat opposite the first interlock assembly, wherein the second interlock assembly comprises: n. connecting a plurality of connectors between the middle layer and the bottom layer for maintaining the original shape of the mat; o. forming a top layer comprising: a plurality of identical top beveled boards connected in parallel having a top layer orientation, and wherein the top layer is fastened through the middle layer to the bottom layer at a right angle to the middle layer orientation; p. connecting a plurality of fasteners through the top layer through the middle layer to the bottom layer to fasten the bottom layer to the middle layer and the top layer forming the first mat; q. repeating the above steps to form a second mat; r. using a center coupler for connecting the first mat with the second mat while simultaneously preventing lateral and longitudinal movement of the pairs of mats; and s. using half end caps to engage portions of the interlock assemblies of the mat.