Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1999-04-21
2000-06-20
Snider, Theresa T.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15368, 74527, A47L 534
Patent
active
060762306
ABSTRACT:
A height adjustment mechanism for a vacuum cleaner includes a wheel carriage pivotally mounted to a foot of the vacuum cleaner, a height adjustment cam which engages the wheel carriage, and a cam actuator which attaches to the height adjustment cam for camming the height adjustment cam against the wheel carriage. The height adjustment cam is formed with a stepped bottom camming surface. The camming surface is formed with a plurality of spaced parallel ribs having a rounded outer surface which minimizes the surface-to-surface contact between the height adjustment cam and the wheel carriage. This reduced surface-to-surface contact reduces the frictional resistance between the height adjustment cam and the wheel carriage allowing the cam actuator to be easily slid for height adjustment of the vacuum cleaner foot.
REFERENCES:
patent: 3821831 (1974-07-01), Grover
patent: 5134750 (1992-08-01), King et al.
patent: 5467502 (1995-11-01), Johnson et al.
patent: 5499425 (1996-03-01), Glenn, III
patent: 5943917 (1999-08-01), Truong et al.
patent: 5970576 (1999-10-01), Maurer et al.
patent: 5974625 (1999-11-01), Garner
Engineering Drawing of Dryer Bushing for Hoover Dryer Model Nos. 0910 and 0920, dated Feb. 26.
Kingsbury Thomas R.
Lowe A. Burgess
Snider Theresa T.
The Hoover Company
LandOfFree
Vacuum cleaner height adjustment mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum cleaner height adjustment mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum cleaner height adjustment mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1841382