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:
Mar. 13, 1979
Filed:
Dec. 29, 1977
Applicant:
Inventors:
Jozsef Ivony, Budapest, HU;
Imre Lendvai, Budapest, HU;
Laszlo Szucs, Budapest, HU;
Laszlo Szekely, Budapest, HU;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13762523 ; 13762543 ;
Abstract
The invention concerns hydraulic control valves suitable for e.g. motor vehicle steering gear. A variety of control port configurations are formed between cooperating ribs and bores on the control piston -- which may be rotary or axially displaceable -- and on the control sleeve. In each case the resulting control ports are defined by circular arcs having a common chord arranged at right angles to the direction of the control displacement for example at right angles to the direction of the control displacement for example at right angles to the direction of rotation of a steering spindle.