Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

1997-11-18

1999-08-24

Redding, David A.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

55374, A47L 500

Patent

active

059409312

ABSTRACT:
A vacuum cleaner erroneous closing apparatus is provided to prevent a dust cover from being closed when a dust collector is not mounted, thereby refraining a motor from being damaged by the dust collected when a vacuum cleaner is operated without the dust collector, the apparatus comprising an erroneous closing prevention unit hinged at a designated position at the low main body for enabling the dust cover to be closed when the dust collector board is inserted onto dust collector fitting part of the low main body and for stopping the closure of the dust cover when the dust collector is not mounted, and a compression spring fixed at designated positions of the low main body and of the erroneous closing prevention unit to apply turning effect toward a direction which prohibits the dust cover from being closed.

REFERENCES:
patent: 2742105 (1956-04-01), Dow
patent: 4044421 (1977-08-01), Kristenson et al.
patent: 4766639 (1988-08-01), Lindquist et al.

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