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:
Dec. 13, 1994
Filed:
Mar. 01, 1994
Applicant:
Inventor:
Arnaldo Benetti, Modena, IT;
Assignee:
P.A. S.r.l., Rubiera, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137110 ; 137116 ;
Abstract
A valve body has three openings: an inlet, an outlet and a flow-back opening, and is provided with an obturator of the flow-back opening and an obturator of the outlet, which outlet obturator is connected by means of a stem with a piston housed in a cylinder communicating with the outlet through a conduit. A recycling conduit places the outlet in communication with a recycling chamber communicating with the flow-back opening through a recycling opening closed by a third obturator, the recycling opening being freed by action of a rod solid to and intervening in conjunction with the second obturator.