Electric pressure switch

Details Electric pressure switch Electric pressure switch

1980-08-08

1982-10-12

Woodiel, Donald O.

Textiles: fiber preparation

Working

Carding

19240, 73749, 356383, G01L 900, D01G 1540

Patent

active

043531482

ABSTRACT:
An electric pressure switch for use with textile machines and the like has a U-shaped tube filled with a liquid. One of the legs is above the liquid level in communication with a source of variable fluid pressure, for example a fiber feeding chute of a textile machine and this same leg, with the other leg, is provided with two or more vertically spaced detecting arrangements which detect changes in the position of the liquid level which occur as the fluid pressure fluctuates, and such detections are converted into electrical signals which can control various functions, such as the drive for fiber feeding devices or the like.

REFERENCES:
patent: 595398 (1897-12-01), Louis
patent: 2882520 (1959-04-01), Hass
patent: 3061732 (1962-10-01), Milnes
patent: 3209596 (1965-10-01), Kelly
patent: 3474501 (1969-10-01), Jeanmaire
IBM Technical Disclosure Bulletin, vol. 9, No. 9, Feb. 1967, p. 1121.

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