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:
Apr. 08, 2003
Filed:
Feb. 25, 2002
Robert E. Henry, Naperville, IL (US);
James M. Farrington, Lockport, IL (US);
Joseph M. Kalebich, Channahon, IL (US);
Westinghouse Electric Co. LLC, Pittsburgh, PA (US);
Abstract
Phenomena in water systems caused by hydraulic transients known as “waterhammer” are suppressed by surge vessels containing crushable, cellular, polymeric materials such as polyethylene, polyurethane and polystyrene foam. The foam may be one piece or in the form of several separate particles contained in nylon netting. A water permeable screen is located between a nozzle connection and the cellular polymeric materials for retaining the materials in the surge vessels as the water flows into and out of the vessels. The foam occupies much of the volume in the surge vessels not occupied by the water and the gas contained in the foam can not readily dissolve into the water.