Telescopic extension wand for vacuum cleaner

Details Telescopic extension wand for vacuum cleaner Telescopic extension wand for vacuum cleaner

1996-09-10

1998-11-17

Ricci, John A.

Pipe joints or couplings

Vacuum cleaner type

285302, A47L 924, F16L 2712

Patent

active

058366202

ABSTRACT:
A telescopic extension wand of a vacuum cleaner includes an inclined tab provided at the inner wall of a sleeve for biasing a retaining plate having retaining teeth underside to engage with a plurality of retaining teeth of a middle tube or an inner tube so the middle or inner tube can be relatively positioned. A projected boss provided at the inner wall of the sleeve can be guided by a guiding slot disposed at an outer wall of the external tube or middle tube. When the sleeve is rotated to a preset position, the inclined tab as well as the retaining plate can be controlled to engage or disengage the middle tube or inner tube with/without engagement between the retaining teeth therebetween. By this arrangement the middle tube and inner tube can be repositioned.

REFERENCES:
patent: 2963930 (1960-12-01), Clothier et al.
patent: 3083041 (1963-03-01), Owenmark
patent: 3351359 (1967-11-01), Ferraris
patent: 3589757 (1971-06-01), Mooney

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