Height adjustment apparatus for a rotatable component of a...

Details Height adjustment apparatus for a rotatable component of a... Height adjustment apparatus for a rotatable component of a...

2007-12-11

2007-12-11

Snider, Theresa T. (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S368000, C015S392000

Reexamination Certificate

active

10818326

ABSTRACT:
A height adjustment apparatus for a rotatable component of a vacuum cleaner is provided. The apparatus includes a rotatable wheel and a retainer device. The rotatable wheel includes a central axis, a wheel portion, a hub portion including an offset axle aperture that receives a rotatable component, and one or more detent devices. The retainer device is retained in a chassis of the vacuum cleaner and includes a body, a hub portion aperture formed in the body and of a size to rotatably receive the hub portion of the rotatable wheel, and one or more biasing devices that interact with the one or more detent devices in order to provide a plurality of predetermined detent positions. The rotatable component is moved substantially vertically with respect to the central axis when the rotatable wheel is rotated between the plurality of predetermined detent positions.

REFERENCES:
patent: 2233762 (1941-03-01), Ashbaugh
patent: 2336710 (1943-12-01), Wied
patent: 3671996 (1972-06-01), Gaudry
patent: 3959847 (1976-06-01), Kaulig et al.
patent: 4221019 (1980-09-01), Haase et al.
patent: 4467495 (1984-08-01), Fish et al.
patent: 5551120 (1996-09-01), Cipolla et al.
patent: 6279196 (2001-08-01), Kasen et al.
patent: 6446302 (2002-09-01), Kasper et al.

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