Floor cleaning apparatus including dispenser for dispensing...

Details Floor cleaning apparatus including dispenser for dispensing... Floor cleaning apparatus including dispenser for dispensing...

2006-12-26

2006-12-26

Snider, Theresa T. (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S246200, C222S517000, C222S287000, C222S564000

Reexamination Certificate

active

07152273

ABSTRACT:
Floor cleaning apparatus (10) comprises a dispenser (50) for dispensing particulate cleaning material onto a floor surface. Particulate material is held in a hopper (52). Movable part (70, 71) is movable with respect to the hopper (52) to define a dispensing aperture (75) and for imparting movement to particulate material in the hopper towards the dispensing aperture (75). Adjustment means (80) are provided for adjusting the operational width of the dispensing aperture (75) so as to provide a range of dispensing settings. Adjustment means (80) is pivotally mounted to the movable part (70, 71) about a rotational axis (82) and has an outer surface which acts as a camming surface. The radius of the outer surface varies in value in different angular directions about the rotational axis (82). Adjustment means (82) provides a discrete set of different spacings between the cam (40) and movable part (71).

REFERENCES:
patent: 2430020 (1947-11-01), Johnson
patent: 2561002 (1951-07-01), Weeks
patent: 2733839 (1956-02-01), Blum
patent: 2886334 (1959-05-01), Presler
patent: 4268935 (1981-05-01), Bessinger
patent: 5101532 (1992-04-01), Dyson et al.
patent: 5427283 (1995-06-01), Whittaker et al.
patent: 6012618 (2000-01-01), Matsuo
patent: 28 34 644 (1980-02-01), None

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