Brush pressure system

Details Brush pressure system Brush pressure system

1998-04-13

1999-07-13

Noori, Max H.

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15 491, A47L 1116

Patent

active

059229683

ABSTRACT:
A brush pressure control system for a cleaning, sweeping or scrubbing machine includes a machine frame (30) supporting a brush head arrangement (8, 27), an actuator arrangement (1, 10) for raising and lowering the brush head (27) mounted between the frame (30) and the brush head (27), and a resilient member operatively connected to the brush head and arranged to at least partially counterbalance the force exerted on the brush head (27) by the actuator (1, 10) when lowering the brush head (27).

REFERENCES:
patent: 4041567 (1977-08-01), Burgoon
patent: 4358868 (1982-11-01), Cook, Jr.
patent: 4633541 (1987-01-01), Block
patent: 4646862 (1987-03-01), Meili
patent: 4674142 (1987-06-01), Meili
patent: 4729141 (1988-03-01), Berg et al.
patent: 4910824 (1990-03-01), Nagayama et al.
patent: 5048141 (1991-09-01), Huppi
patent: 5481776 (1996-01-01), Briscoe

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