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:
Aug. 28, 1979
Filed:
Jun. 30, 1977
Applicant:
Inventors:
Yizhak Friedman, Newton, MA (US);
Bernard B Becker, Belmont, MA (US);
Assignee:
Amtrol Incorporated, West Warwick, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F04B / ; F04B / ;
U.S. Cl.
CPC ...
417 26 ; 137489 ; 137491 ;
Abstract
A water pressure booster system is disclosed having a control device which regulates the pressure in the distribution system via a closely balanced piston valve. Flow into the system from a pump is controlled by a throttling valve which is actuated by the pressure differential between the system pressure and a constant pressure acting on a closely balanced piston. Flow from the system back into the pump is prevented by a flow control/check valve within the throttling valve.