Patent ID: 7165290
Filing Date: 2007-01-23
Classification: A47L,B60B,B62B,Y10T

Abstract:
1. A combination of a caster assembly, and a tank and a wheel dolly assembly, wherein the caster assembly snap fits onto the tank, the combination comprising: at least one caster assembly comprising a housing comprising an outer shell connected to at least one caster wheel, the outer shell also being connected to an outer wall, the outer wall extending downward from the outer shell before terminating at a u-shaped lower edge connected to and disposed between the outer wall and an upwardly extending inner wall, the outer wall being connected to an inwardly extending ledge disposed above the u-shaped lower edge and which extends towards the inner wall, the outer wall, u-shaped lower edge, inner wall and ledge of the caster housing defining a female receiving area, a tank comprising an outer wall that extends downwardly and terminates at a radially outwardly extending lower bead, the lower bead being disposed between and connected to the outer wall of the tank and an upwardly extending inner wall of the tank, the lower bead of the tank snap fitting into the female receiving area of the caster housing, an upper portion of the outer shell of the caster assembly being in contact with the outer wall of the tank in a manner so that the caster assembly provides support to the tank the tank being connected to a wheel dolly assembly comprising comprising a housing comprising an outer shell connected to an axel disposed between and connected to a pair of wheel, the outer shell of the wheel dolly housing also being connected to a first outer wall, the first outer wall of the wheel dolly housing extending downward from the outer shell of the wheel dolly housing before terminating at a first u-shaped lower edge connected to and disposed between the first outer wall of the wheel dolly housing and a first upwardly extending inner wall, the first outer wall of the wheel dolly housing being connected to a first inwardly extending ledge disposed above the first u-shaped lower edge of the wheel dolly housing and which extends towards the first inner wall of the wheel dolly housing, the first outer wall, first u-shaped lower edge, first inner wall and first ledge of the wheel dolly housing defining a first female receiving area of the wheel dolly housing, and the bead of the tank snap fitting into the first female receiving area of the wheel dolly housing.