Patent ID: 8955276
Filing Date: 2015-02-17
Classification: E04F

Abstract:
1. An apparatus comprising: (a) a riser mounting base having a top portion with a top surface and a bottom surface; (b) an aperture extending from said top surface of said top portion of said riser mounting base to said bottom surface of said top portion of said riser mounting base; (c) a first side portion with an inner surface and an outer surface and second side portion with an inner surface and an outer surface extending downwardly from said bottom surface of said top portion of said riser mounting base and spaced apart from each other, said first and second side portions being parallel to each other and perpendicular to said bottom surface of said top portion of said riser mounting base, said inner surfaces of said first and second side portions facing each other; (d) a plurality of horizontal teeth on said inner surfaces of said first and second side portions; (e) at least one aperture extending from said outer surfaces to said inner surfaces of said first and second side portions; (f) a riser lifting block having a top surface and a bottom surface mounted directly on said top surface of said top portion of said riser mounting base via a tongue and groove joint; (g) an aperture extending from said top surface of said riser lifting block to said bottom surface of said riser lifting block; (h) a riser having a top surface and a bottom surface mounted directly on said top surface of said riser lifting block via a tongue and groove joint; (i) an aperture extending from said top surface of said riser to said bottom surface of said riser; (j) a plurality of protrusions protruding from said top surface of said riser; (k) a top plate detachably mountable on said riser; (l) an aperture in said top plate; (m) a mounting pin for fastening said top plate to said riser; (n) a floor plank detachably mountable between said top plate and said riser; and (o) at least one toothed narrow beam block detachably mountable on at least one of said inner surfaces of said first and second side portions of said riser mounting base.