Pressure based sensing means for adjusting the height of an agit

Details Pressure based sensing means for adjusting the height of an agit Pressure based sensing means for adjusting the height of an agit

1999-06-01

2000-09-26

Warden, Sr., Robert J.

Cleaning and liquid contact with solids

Processes

Including use of vacuum, suction, or inert atmosphere

15319, 15355, 15368, A47L 904, B08B 504

Patent

active

061237795

ABSTRACT:
A vacuum cleaner head has a rotatably mounted brush and a pressure sensor which is drivingly connected to the brush to move the brush with respect to the dirty air inlet in response to the air pressure in the air flow path to the vacuum cleaner head.

REFERENCES:
patent: 2526419 (1950-10-01), Reeves
patent: 3659312 (1972-05-01), Mattsson
patent: 3683448 (1972-08-01), Lagerstrom et al.
patent: 3849823 (1974-11-01), Adamson et al.
patent: 4513472 (1985-04-01), Wells
patent: 5086538 (1992-02-01), Zahuranec

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