Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

2005-07-20

2008-11-04

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S352000, C055S492000, C055S498000, C055S508000, C055SDIG030

Reexamination Certificate

active

07444712

ABSTRACT:
A vacuum cleaner has a vacuum cleaner housing and an exchangeable filter with through opening arranged in the housing. A holding arm connected with its upper end to the vacuum cleaner housing penetrates the through opening. A fastening member is detachably connected to the lower end of the holding arm for securing the filter to the holding arm. The lower end of the holding arm has a radial recess, and the fastening member has engagement elements engaging the radial recess when the filter is secured on the holding arm. The engagement elements block removal of the fastening member from the lower end of the holding arm. The fasting member has an actuating ring moveable between a locked position, in which the engagement elements secure the fastening member against removal from the holding arm, and a release position, in which the fastening member is removable from the holding arm.

REFERENCES:
patent: 4278454 (1981-07-01), Nemesi
patent: 6113663 (2000-09-01), Liu
patent: 34 05 749 (1985-08-01), None
patent: 295 05 149 (1995-09-01), None
patent: 199 15 291 (2000-10-01), None
patent: 0 921 748 (2000-10-01), None
patent: 1 163 873 (2001-12-01), None
patent: 737 874 (1932-12-01), None
patent: 2 377 656 (2003-01-01), None

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