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. 13, 1998
Filed:
Dec. 09, 1997
Applicant:
Inventor:
Mario Ricco, Bari, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
25112916 ; 25112919 ; 25112921 ; 2395338 ; 2395851 ;
Abstract
The metering valve has a shutter for a discharge conduit, and an electromet for controlling an armature disconnected from a respective stem and sliding along the stem by means of a respective sleeve; the stem is guided by a bush and pushed by a first spring to keep the shutter in the closed position; and the armature is held axially resting against the stem by a second spring preloaded between the armature and an annular shoulder of the stem, so as not to affect the action of the first spring.