The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1977
Filed:
Aug. 12, 1975
Lothar Nemetz, Bad Oeynhausen, DT;
Klaus Nusse, Leopoldshohe, DT;
Eisenwerk Weserhutte AG, , DT;
Abstract
An electrically-controlled, hydraulically-actuated valve, having an inlet joined to a main outlet through a pressure regulating chamber; a by-pass passage joined to the pressure regulating chamber through a second enlarged chamber coaxial with the first; a valve seat formed at the juncture of the two chambers; a slidable valve, having one end tapered to seat in the valve seat and coaxially passing through the second chamber; a flow restricting viscosity non-influenced orifice in the inlet passage to form a jet of the introduced fluid; a blind hole extending into the body of the valve from the first chamber, directly opposite the discharge end of the inlet passage and coaxial therewith to avoid any jet stream impulse force on the tapered piston; a magnetizable core mounted on the other end of the valve; an annular electrical coil surrounding the core; and a biasing valve mounted in the discharge end of the by-pass passage and spring-biased against the flow of fluid.