Vacuum cleaning

Details Vacuum cleaning Vacuum cleaning

1979-02-09

1980-09-02

Moore, Christopher K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15 42, 15398, 15420, A47L 904, A47L 906

Patent

active

042199026

ABSTRACT:
A brush assembly is fixedly mounted to each side wall of a vacuum cleaner head closely adjacent the axis of a rotary brush. The brush bristles of each assembly are directed so as to brushingly engage the wall-floor corner. The brushes are aligned in the direction of longitudinal movement of the vacuum cleaner. A guide slot is formed in the head adjacent the end of each brush assembly, with each slot providing communication between the outside of the head and the vacuum chamber containing the rotary brush. Dirt and debris loosened by the brush assemblies is sucked through the channels formed by the slots and the floor, and then into the path of the rotary brush and into the vacuum chamber.

REFERENCES:
patent: 1094579 (1914-04-01), Matchette
patent: 1404889 (1922-01-01), Owen
patent: 1560400 (1925-11-01), Vander Putten
patent: 1782882 (1930-11-01), Rippey
patent: 2348861 (1944-05-01), Smellie
patent: 4023234 (1977-05-01), Martinec et al.
patent: 4028765 (1977-06-01), Liebscher

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