Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-10-09
2007-10-09
Snider, Theresa T. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S347000, C015S353000, C015S339000
Reexamination Certificate
active
10660776
ABSTRACT:
A device for protecting a motor in a vacuum cleaner is provided. The device includes a lower casing for forming a lower portion of a main body of the cleaner, a motor housing, which is installed in the lower casing and includes the driving motor therein and an upper portion of which is opened upwardly, a filtering device installed onto the lower casing for filtering out foreign materials from introduced air, and an intermediate cover integrally formed with a first cover portion positioned onto an upper portion of the filtering device and a second cover portion for covering the upper portion of the motor housing. Further, a pressure switch for sensing pressure within the motor housing and a damper for introducing external air into the motor housing when the pressure within the motor housing is lowered below a predetermined pressure value are directly installed onto the second cover portion of the intermediate cover.
REFERENCES:
patent: 2439182 (1948-04-01), Nuffer et al.
patent: 3089177 (1963-05-01), Andersson-Sason
patent: 3101889 (1963-08-01), Tatge
patent: 3170184 (1965-02-01), Jepson et al.
patent: 3636681 (1972-01-01), Batson et al.
patent: 3651536 (1972-03-01), Bolzan, Jr. et al.
patent: 3871847 (1975-03-01), Fish
patent: 3932911 (1976-01-01), Crooks et al.
patent: 4597131 (1986-07-01), Lyman
patent: 4733431 (1988-03-01), Martin
patent: 5293664 (1994-03-01), Lim et al.
patent: 5513417 (1996-05-01), Kim et al.
patent: 5701631 (1997-12-01), Lindquist
patent: 5881430 (1999-03-01), Driessen et al.
patent: 5898971 (1999-05-01), Contant
patent: 5937477 (1999-08-01), Dyson
patent: 6026539 (2000-02-01), Mouw et al.
patent: 6167588 (2001-01-01), Dyson
patent: 6484350 (2002-11-01), Yung
patent: 6618898 (2003-09-01), Tingle
patent: 0344136 (1989-11-01), None
patent: 0365191 (1990-04-01), None
patent: 0378191 (1990-07-01), None
Ked & Associates LLP
LG Electronics Inc.
Snider Theresa T.
LandOfFree
Device for protecting motor in vacuum cleaner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for protecting motor in vacuum cleaner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for protecting motor in vacuum cleaner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3857650