초록 ▼

An elongated body, has internally formed a plenum chamber opening to one face of the body. A pair of side brushes mounted on the face projected outwardly thereof and being spaced laterally from each other and extending over the major length of the body. A pair of longitudinally opposed end brushes s

An elongated body, has internally formed a plenum chamber opening to one face of the body. A pair of side brushes mounted on the face projected outwardly thereof and being spaced laterally from each other and extending over the major length of the body. A pair of longitudinally opposed end brushes spanned transversely across the body face from one side brush to the other project outwardly of the one face in the direction of the side brushes and form with the side brushes a vacuum chamber. The tips of the side brushes are formed of bristles of a length in excess of the length of bristles formed by the side brushes, and are engageable with laterally opposed longitudinally extending opposite side edges of planar ceiling fan blades. The side brushes are spaced from each other a distance generally equal to the lateral width of the ceiling fan blades. Locking plates fixed to the body project outwardly from opposite ends of the body longitudinally outside of the end brushes and in contact therewith such that the ceiling fan brush is effectively locked by the locking plates to the opposite side edges of the fan blade to facilitate dust removal from the surface of the fan blade enveloped by the ray of side brushes and end brushes while mechanically guiding the ceiling fan brush during travel longitudinally over the surface of the ceiling fan blade from one end to another.

대표청구항 ▼

An adjustable angle tube vacuum connector for detachably mounting a vacuum tool to a vacuum cleaner hose or extension wand, said adjustable angle tube vacuum connector comprising an end-to-end coupled first, curved adjustable angle connector tube and a second, straight adjustable angle connector tub

An adjustable angle tube vacuum connector for detachably mounting a vacuum tool to a vacuum cleaner hose or extension wand, said adjustable angle tube vacuum connector comprising an end-to-end coupled first, curved adjustable angle connector tube and a second, straight adjustable angle connector tube, said curved adjustable angle connector tube comprising a cylindrical straight portion at one end and an integral arcuately curved portion at an opposite end, wherein said arcuate curved portion terminates in an end face oblique to the axis of the cylindrical straight portion, and wherein said straight adjustable angle connector tube comprises a straight cylindrical tube having an end face at one end oblique to the axis of said straight cylindrical tube and means for mechanically coupling said oblique end faces of said first tube and said second tube together in face-to-face relationship, with said tubes being mutually rotatable relative to each other over at least 180°of rotation such that the angular relationships between the axes of the respective tubes vary during rotation of one with respect to the other.