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Hart; Dennis L.
Newport Beach, CA
No. of patents:

Patent Number Title Of Patent Date Issued
6655413 Method and apparatus for pressure testing pipe lines December 2, 2003
A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a flow path through the fitting extending along a longitudinal axis. The fitting has an intern
5413096 Regulator with improved high pressure seat due to a plastic-covered valve body May 9, 1995
The invention disclosed herein comprises a self-contained breathing apparatus regulator having a valve seat for overlying the crown of an orifice wherein high pressure gas is regulated by said valve seat into said orifice. The valve seat has a valve seat body of an inverted T shaped
5184609 Divers first stage adjustable regulator February 9, 1993
An adjustable regulator of the type having fluid coupling oil within a cavity exposed to ambient pressure and overlying a diaphragm which operates based upon imbalances of said ambient pressure and an intermediate pressure zone on the other side of said diaphragm. The adjustment of t

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