초록 ▼

An aspirator comprising a suction head fitted onto the top of a wheel-mounted bin designed to contain the aspirated material. The bin is composed of a bottom section carrying said wheels and of one or more intermediate sections open from above and below which can be stacked and removably secured tog

An aspirator comprising a suction head fitted onto the top of a wheel-mounted bin designed to contain the aspirated material. The bin is composed of a bottom section carrying said wheels and of one or more intermediate sections open from above and below which can be stacked and removably secured together so as to form, together with the bottom section, a bin of variable vertical dimensions.

대표청구항 ▼

In an aspirator for solid and liquid substances, of the type comprising a head supporting thereon an electric motor-driven suction device, said head being removably fitted onto the open upper end of a wheel-mounted bin, and a suction hose communicating with the inside of said bin, the improvement ch

In an aspirator for solid and liquid substances, of the type comprising a head supporting thereon an electric motor-driven suction device, said head being removably fitted onto the open upper end of a wheel-mounted bin, and a suction hose communicating with the inside of said bin, the improvement characterized by the fact that said bin comprises a bottom section carrying wheels on its undersurface, one or more intermediate sections, open from above and below, and stacked and removably secured together and to said bottom section, and coupling means for releasably connecting said sections together to form said bin, a plurality of latching notches formed in said head and said intermediate sections, and said coupling means being in the form of a plurality of fasteners, disposed externally of and adjacent to one edge of each of said sections, and each of said fasteners being movable from a first open position to a second closed position by fitting into a corresponding one of said notches in said intermediate sections and said head, respectively.