Apparatus for performing work on a floor surface

Details Apparatus for performing work on a floor surface Apparatus for performing work on a floor surface

1992-12-17

1994-10-11

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15 491, 15410, A47L 932

Patent

active

053534719

ABSTRACT:
The invention relates to an apparatus for performing work on a floor surface such as an electrically driven vacuum and polishing machine. The machine includes a chassis and a wand pivotally connected to the chassis by a pivot connection. A vacuum cleaner suction unit is mounted on the wand and the weight force of the suction unit acts outside of the center of gravity conjointly defined by the chassis and the floor working device mounted on the chassis. The floor working device acts on the floor surface with an uneven force distribution. A spring coacts with the pivot connection to shift at least a portion of the weight force of the suction unit to the center of gravity of both the chassis and the floor working device to provide a more even distribution of the force acting on the floor surface.

REFERENCES:
patent: 2525282 (1950-10-01), Brace
patent: 2671924 (1954-03-01), Segesman
patent: 2881465 (1959-04-01), Duff
patent: 3154802 (1964-11-01), Hanschitz et al.

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