Plunger mechanism with a Hall sensor movement detection device f

Details Plunger mechanism with a Hall sensor movement detection device f Plunger mechanism with a Hall sensor movement detection device f

1992-09-29

1994-06-07

Jones, W. Gary

Glass manufacturing

With signal, indicator, inspection means, register, or recorder

65319, 65322, 65362, C03B 1106, G01D 512

Patent

active

053186168

ABSTRACT:
A piston rod of a piston and cylinder device has an axial bore through which a fixed non-ferromagnetic monitoring member extends, and a detection insert of ferromagnetic materially extending generally axially of the monitoring member. A magnetic circuit is created through a base of the cylinder, a sidewall, the piston and the detection insert, and movement of the piston is detected by a Hall sensor which detects a change of flux in the magnetic circuit.

REFERENCES:
patent: 3180718 (1965-04-01), Wilhelm
patent: 3192027 (1965-06-01), Wilhelm
patent: 4582522 (1986-04-01), Merz et al.
patent: 4613352 (1986-09-01), Krumme et al.
patent: 4662923 (1987-05-01), Vajda et al.
patent: 5139559 (1992-08-01), Kozora

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