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:
Feb. 15, 2000
Filed:
Oct. 05, 1998
Brian T Hartman, Mesa, AZ (US);
Thomas A Hartman, St. Louis, MI (US);
Other;
Abstract
A valve assembly comprises a valve body, a valve plug and a pressure regulating conduit (phase regenerator). The valve body has an upstream opening, a downstream opening, and a hollow interior between the upstream and downstream openings. The hollow interior of the valve body is defined by an interior surface of the valve body. The valve plug is mounted within the hollow interior of the valve body. The valve plug is moveable relative to the valve body between a closed position and an open position. The valve plug is adapted for engagement with the valve body in a manner to prevent fluid flow through the valve body when the valve plug is in the closed position. The valve body is adapted to permit fluid flow in a downstream direction through the valve body, from the upstream opening to the downstream opening, when the valve plug is in the open position. The pressure regulating conduit is connected to the valve body and is adapted to introduce a gas into the hollow interior of the valve body. The pressure regulating conduit has a discharge end that extends into the hollow interior of the valve body.