Floor sweeper with unitary frame

Details Floor sweeper with unitary frame Floor sweeper with unitary frame

1977-06-29

1978-11-14

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 48, A47L 1133

Patent

active

041249135

ABSTRACT:
A unitary top-less peripheral frame is provided which holds substantially all the functional parts of the sweeper. The frame includes end walls carrying bearings which receive the ends of the brush roller shaft, with the said end walls being spring-like and flexible to permit easy insertion and removal of the shaft. The frame has brush bristle tufts mounted therein at the corners. A separate top is removably mounted to the peripheral frame, with the top carrying bail detent or stop elements which additionally extend downwardly and lock the top to the unitary frame while also holding the dust pan springs in place. The front and/or rear frame walls which extend between the said end walls form a debris-retaining wall. The frame provides a lip which is engageable by the pan edge and which seals the pan chamber and tends to increase the frictional forces between the sweeper wheels and the brush roller element.

REFERENCES:
patent: 186895 (1877-01-01), Stewart
patent: 2962740 (1960-12-01), Plantholt
patent: 2975449 (1961-03-01), Liddell et al.
patent: 3268936 (1966-08-01), Fukuba
patent: 4028765 (1977-06-01), Liebscher

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