Height adjusting apparatus for suction brush of upright...

Details Height adjusting apparatus for suction brush of upright... Height adjusting apparatus for suction brush of upright...

2007-07-24

2007-07-24

Corcoran, Gladys J P (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S368000

Reexamination Certificate

active

10667838

ABSTRACT:
Disclosed is a height adjusting apparatus for a suction brush of an upright vacuum cleaner, by which a user can facilely adjust a gap between the suction brush and a cleaning surface. The apparatus comprises a suction brush body; a height adjusting knob rotatably disposed at a seating portion formed in the suction brush body, and having a cam curve portion formed at a part of an end of the height adjusting knob inserted into the suction brush body, the cam curve portion having a height difference between a starting point and an end point thereof and a plurality of recessed grooves formed between the starting point and the end point; a height adjusting shaft integrally formed with a rod member which is contacted with the cam curve portion and lifted up and down according to a rotational direction of the height adjusting knob; and a brush front wheel rotatably coupled to the height adjusting shaft.

REFERENCES:
patent: 3683448 (1972-08-01), Lagerstrom et al.
patent: 4446594 (1984-05-01), Watanabe et al.
patent: 5970576 (1999-10-01), Maurer et al.
patent: 5974625 (1999-11-01), Garner
patent: 6081963 (2000-07-01), Jailor et al.
patent: 6357076 (2002-03-01), Lee
patent: 6363573 (2002-04-01), Harsh
patent: 62207419 (1987-09-01), None
patent: 1986-0001635 (1986-10-01), None
patent: 2001-0012060 (2001-02-01), None

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