Patent ID: 7770329

Claim:
A door roller system comprising: a first housing including at least one vertical side member having at least two vertical slots; a base slidably coupled to the first housing and having at least two projections that each extend at least partially through the vertical slots in the vertical side member of the first housing; at least one wheel coupled to the base; wherein the projections on the base are configured to slide within the vertical slots on the first housing throughout movement of the base relative to the first housing; an adjustment mechanism comprising a control member oriented substantially perpendicular to the side member, the adjustment mechanism configured to move the first housing relative to the wheel, the adjustment mechanism including a fastener being located between the at least two vertical slots in the first housing, the fastener moving within the base in a vertical direction spaced from and parallel to the at least two vertical slots in the first housing; and a second housing including the base and two U-shaped tabs extending from a lower portion of the second housing, wherein each tab extends from an opposite side of the second housing and is engageable with a lower edge of the first housing to limit the movement of the base relative to the first housing.