Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1988-10-14
1991-01-29
Rosenthal, Arnold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
25112916, 25112905, 25112907, F16K 3106, H01F 713
Patent
active
049889672
ABSTRACT:
A solenoid operated hydraulic control valve which has a specially ported spool valve to statically balance spool force in the opened and closed positions, and a specially designed solenoid operator which includes very small ratios of gaps to cross-sectional areas for the working and non-working gaps between the armature and stator.
REFERENCES:
patent: 2457017 (1948-12-01), Walley
patent: 2697581 (1954-12-01), Ray
patent: 3368791 (1968-02-01), Wells
patent: 4258749 (1981-03-01), Mayer
patent: 4579145 (1986-04-01), Leiber et al.
Gallaher Kenneth R.
King Todd L.
Miller Alan L.
Studtmann George H.
Umlauf William P.
Borg-Warner Automotive Electronic & Mechanical Systems Corporati
Rosenthal Arnold
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