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:
Nov. 29, 1994
Filed:
Oct. 07, 1993
Applicant:
Inventor:
James C Murphy, Chardon, OH (US);
Assignee:
Essef Corporation, Chardon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 30 ; 138 26 ;
Abstract
A hydropneumatic filament-wound pressure vessel is disclosed. The vessel includes a split tank closure and diaphragm assembly comprising a pari of cup-shaped plastic tank liners having cylindrical sidewall portions terminating in circular open mouth portions. A cylindrical ring is interposed between the open mouths of the liners and is sealed to the liners by a fusion welding operation. A cup-shaped elastomeric diaphragm is sealed to the cylindrical ring and separates the interior of the vessel into a pair of pressure chambers. The outer surface of the tank is helically wound with a resin-impregnated continuous filament.