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:
Jun. 06, 1989
Filed:
Feb. 18, 1988
Applicant:
Inventor:
Joseph A Lane, Taunton, MA (US);
Assignee:
Amtrol Inc., West Warwick, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
220403 ; 138 30 ; 220 / ; 220 / ; 2223865 ;
Abstract
A flexible diaphragm/liner located in a tank connected to a liquid system. The bottom opening in the flexible diaphragm/liner is mounted in a hole in the bottom of the tank. The rigid tank is connected to a system to permit materials, like water, etc., to pass into and out of the interior of the flexible diaphragm/liner depending upon the operating needs of the system. The diaphragm/liner has an upper portion which is adapted to flex into or out of its lower portion in a predictable fashion, under pressure changes. A compressible gas is used in the upper portion of the tank.