Patent ID: 7647729

Claim:
An interior sliding door system comprising: (a) an interior, non-hanging, sliding door having a panel that is encased within a frame, wherein said frame comprises a horizontal top portion, a horizontal bottom portion, and opposing first and second vertical side portions, said door further including first and second upper roller assemblies respectively disposed proximate opposing ends of said horizontal top portion, a first lower wheel assembly coupled to said first vertical side portion only, and a second lower wheel assembly coupled to said second vertical side portion only, wherein each of said first and second lower wheel assemblies comprises: (1) a vertical spine having a vertical slot through a central portion thereof and a transverse shaft coupled to a bottom portion thereof, said transverse shaft being disposed perpendicular to the plane of the panel; (2) a mounting bracket that is configured to be coupled only to a back side of a respective one of said first and second vertical side portions via attachment means selected from the group consisting of screws, bolts, and combinations thereof, said mounting bracket being detachably coupled to the vertical spine through said vertical slot so as to allow vertical adjustment of the spine with respect to the bracket; (3) a lower wheel that is rotatably coupled to said transverse shaft and has a channel along the periphery thereof so as to define a concave contact surface; and (4) a transverse latch member disposed vertically below said lower wheel and parallel to said transverse shaft; (b) a lower track having a convex longitudinal portion that is configured to mate with said lower wheel's concave channel so as to allow the lower wheel to matingly rotate on the outer side of the convex longitudinal portion, said transverse latch member slidably engaging a concave channel defined by the underside of said convex longitudinal portion so as to slidably latch each said lower wheel assembly to the lower track as the lower wheel rotates on said convex longitudinal portion; and (c) an upper track configured to receive said upper roller assembly so as to allow the door to slide horizontally between said lower and upper tracks.