Centrifugal actuating device for pushing or pulling an element t

Details Centrifugal actuating device for pushing or pulling an element t Centrifugal actuating device for pushing or pulling an element t

1991-12-02

1993-03-23

Nilson, Robert G.

Ventilation

Having outlet airway

With air pump

73547, F24F 1104

Patent

active

051959283

ABSTRACT:
A centrifugal device (17), in particular for operating shutters (20) disposed facing a fan (15), comprises a first end plate (23) connected to the end of a shaft (16) for rotating the fan (15). Facing said first plate (23) is a second end plate (24) rotatingly supporting, on an axis substantially coinciding with the shaft (16), a fastening element (19) for a control rod (18) which operates the mechanism when the two plates move away from and towards each other. The plates being linked to each other by at least three centrally articulated arms (26, 27) provided with counterweights (29) close to the central joint (28), on rotation of the shaft the centrifugal force acting on the counterweights (29) causing the central joints (28) to move apart from each other.

REFERENCES:
patent: 1386915 (1921-08-01), Underhill
patent: 2444257 (1948-06-01), Jenner
patent: 2588952 (1952-03-01), Baisch
patent: 2700538 (1955-01-01), Anderson
patent: 3942422 (1976-03-01), Kawai
patent: 4217816 (1980-08-01), Manicelli

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