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:
May. 04, 1999
Filed:
Sep. 11, 1996
Applicant:
Inventors:
Assignee:
Essef Corporation, Chardon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
156359 ; 156499 ; 156503 ; 156556 ; 220581 ; 220582 ; 220 6222 ;
Abstract
A molded plastic vessel is provided with a fitting or other attachment after molding and before winding of the vessel. The fitting is provided with a plastic insert. The insert and a wall of the vessel are heated and welded together to hold the fitting on the vessel. The tank is filament wound for reinforcement, and the filaments capture the fitting to hold the fitting on the wall. The wall is opened to provide a passage through the fitting into the vessel. An apparatus is provided that carries and moves the fitting, insert, and a heater to install the fitting on the vessel.