Patent ID: 8387209

Claim:
A caster assembly, including: a mounting plate adapted to be fastened to an object; a transfer plate, and first and second bearing assemblies supported by said transfer plate in side-by-side, parallel relationship; a mounting post extending downwardly from said mounting plate and rotatably received in said first bearing assembly; said first bearing assembly including upper and lower first ball bearing races arranged in vertically stacked fashion to support said mounting post in vertical load supporting fashion; a head post rotatably received in said second bearing assembly, said second bearing assembly including upper and lower second ball bearing races arranged in vertically stacked fashion to support said head post in vertical load supporting fashion; and bracket means extending from said head post to support a caster wheel in ground-engaging, rotatable fashion, whereby said bracket means may revolve about said head post to move said caster wheel to any directional angle about said head post, and said transfer plate may rotate about said mounting post to move said bracket means in orbital fashion to any angle about said mounting post.