Height adjusting apparatus for a vacuum cleaner nozzle

Details Height adjusting apparatus for a vacuum cleaner nozzle Height adjusting apparatus for a vacuum cleaner nozzle

2008-05-20

2010-11-30

Muller, Bryan R (Department: 3727)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S333000, C015S355000, C015S356000

Reexamination Certificate

active

07841046

ABSTRACT:
The invention discloses a height adjusting apparatus for a vacuum cleaner nozzle, comprising: a barrel with a vertical passage, a groove module is formed on the inner surface of the barrel, said groove module comprises an upper groove, a lower groove, which has at least a first positioning point, a second positioning point differing from first positioning point in height and a intermediate point between the two positioning points; a resilient member, a lifting member, a driven member and a driving member are arranged in the passage of barrel from down to up. The height adjusting apparatus could be adjusted by applying a pressure force downwardly in vertical direction (for example, press by foot) and that takes less labor and time.

REFERENCES:
patent: 4083079 (1978-04-01), Vermillion

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