Apparatus and method for indicating the rotational speed of a fa

Details Apparatus and method for indicating the rotational speed of a fa Apparatus and method for indicating the rotational speed of a fa

1986-01-27

1987-06-23

Myracle, Jerry W.

Communications: electrical

Condition responsive indicating system

Specific condition

416 61, G01P 344

Patent

active

046756639

ABSTRACT:
An apparatus and method for indicating the rotational speed of a fan is disclosed. An electrical circuit is provided for selectively providing electrical power to a plurality of indicator lights mounted on the fan. The indicator lights are turned on and off in a coded sequence that indicates the speed at which the fan is rotating.

REFERENCES:
patent: 716263 (1902-12-01), Mott
patent: 3505595 (1970-04-01), Favre
patent: 3559065 (1971-01-01), Grundy

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