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:
Oct. 20, 1998
Filed:
Aug. 04, 1997
Applicant:
Inventors:
Kurt Stoll, Esslingen, DE;
Jurgen Schnatterer, Wolfschlugen, DE;
Assignee:
Festo KG, Esslingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
25112907 ; 251 64 ; 137529 ;
Abstract
A solenoid valve, whose valve member is acted upon by a feed pressure in a closed setting by the feed pressure obtaining in an inlet duct. In order to render possible rapid switching operations a moving ancillary drive member is provided which is acted upon by a control pressure and which acts through an outlet duct in the opening direction, and hence against the feed pressure, on the valve member.