Device for articulating a moving blade pivoting on its base and

Details Device for articulating a moving blade pivoting on its base and Device for articulating a moving blade pivoting on its base and

1981-03-18

1983-02-22

Shepperd, John W.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Utilizing conductive liquid

200182, 200234, 200235, 200 816, 200 84C, H01H 108

Patent

active

043750559

ABSTRACT:
The invention relates to a device for articulating a moving blade pivoting on its base.
The mobile member is constituted by a blade fixed to a float, which floats on a liquid contained in a cavity made in a base, the liquid being kept in the cavity by capillarity. The nature and dimensions of the float are adapted to the liquid density. The cavity dimensions are large enough to permit the float to move, without mechanical jamming. The mobile assembly, blade and float is prevented from escaping from the cavity by at least one bridge welded to the base towards the ends of the float.
Application to switches with blades wetted by an electricity-conducting liquid.

REFERENCES:
patent: 2295602 (1942-09-01), Pollard
patent: 2317695 (1943-04-01), Pollard
patent: 2923792 (1960-02-01), Fry
patent: 3470502 (1969-09-01), Koda et al.
patent: 3531743 (1970-09-01), Frydman

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