Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1990-05-07
1991-02-05
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15144B, A47L 932
Patent
active
049892959
ABSTRACT:
The invention is directed to a telescopic guide wand for floor-cleaning apparatus such as household vacuum cleaners. The guide wand includes two concentrically arranged tubes which telescopically engage each other and conjointly define an inner space to accommodate the electrical supply cable for the motor blower head of the vacuum cleaner. The tubes are latched with respect to each other in several steps and the supply cable extends as helically configured cable within the upper portion of the wand. The supply cord extends concentrically out of the end of the upper tube which is configured as a handle and can be connected to the house electrical supply system. The end of the guide wand facing toward the apparatus has a connecting device disposed thereon. On its upper member, the guide wand has the following: a stowing cavity for the cable lined with insulating material; a guide sleeve minimizing the telescoped overall length of the wand which supports, when the wand is in its extended position, the portion facing the motor; and, an end stop to prevent separation of the upper and lower members.
REFERENCES:
patent: 1575028 (1926-03-01), Bates
patent: 1918519 (1933-07-01), Clements
patent: 2607863 (1952-08-01), MacFarland
patent: 2660457 (1953-11-01), Mallon
patent: 4319380 (1982-03-01), Simm et al.
Birr Hans-Joachim
Guhne Wieland
Hannemann Peter
Jager Jurgen
Moore Chris K.
Ottesen Walter
Vorwerk & Co. Interholding GmbH
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