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US 7,607,448 B2Granted
Method for modifying a plastic body valve for use in a waste water system
AssigneeI-CON Systems, Inc.
InventorsWilliam Robert Hawks, Jr., Shawn D. Bush
Life of this patent
Estimating the term…
Abstract
A method is provided for retrofitting a conventional plastic valve to allow the valve to be utilized in a waste water system. The method includes strengthening the valve or valve housing using various methods.
Claims11
A method of retrofitting a conventional plastic valve having brass pressed insert nuts and stainless steel or aluminum bolts to allow the valve to be utilized to meet pressure requirements of at least 500 psi for use as a flush valve in a waste water system, the method comprising:
- replacing the stainless steel or aluminum bolts of the valve with higher tensile steel bolts;
- and/or
- replacing the brass pressed insert nuts of the valve with steel insert nuts.
Dependencies are inferred from the claim text.