Solenoid assembly

Details Solenoid assembly Solenoid assembly

2006-12-05

2006-12-05

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

C335S259000, C335S268000, C251S129020, C251S129100

Reexamination Certificate

active

07145424

ABSTRACT:
What is disclosed is a lifting magnet assembly for a servo valve or control valve comprising a proportional magnet which acts on a valve spool of the control valve or servo valve through a tappet. Between the spool and the proportional magnet a failsafe magnet is provided which is penetrated or encompassed by the tappet of the proportional magnet.

REFERENCES:
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patent: 4494096 (1985-01-01), Fuzzell
patent: 4697164 (1987-09-01), Eilertsen
patent: 5309944 (1994-05-01), Chikamatsu et al.
patent: 42 08 367 (1993-09-01), None
patent: 43 16 637 (1993-11-01), None
patent: 197 05 598 (1998-08-01), None
patent: 0 564 794 (1993-10-01), None

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