Solid-state electronic brush speed sensing control

Details Solid-state electronic brush speed sensing control Solid-state electronic brush speed sensing control

1982-03-03

1983-08-09

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361118, 361239, 361241, 361381, 15391, H02H 708

Patent

active

043982310

ABSTRACT:
This is concerned with a solid-state electronic brush speed sensing control for sensing the rotational speed of the brush in a vacuum cleaner, either of the canister or upright type, so that as the brush slows down or stops due to being jammed or partially jammed by a foreign object, such as a sock or the like, the drive motor will be disconnected from its source of power thereby protecting the brush, the motor, the belts, etc.

REFERENCES:
patent: 3403395 (1968-09-01), Gundry et al.
patent: 3435290 (1969-03-01), Lyman
patent: 3648166 (1972-03-01), Redecker et al.
patent: 3668465 (1972-06-01), Evans et al.
patent: 3676742 (1972-07-01), Russell et al.
patent: 3917981 (1975-11-01), Keen
patent: 3940665 (1976-02-01), Seki
patent: 4163999 (1979-08-01), Eaton
patent: 4245370 (1981-01-01), Baker

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