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:
Jun. 01, 1993
Filed:
Nov. 20, 1991
Spencer M Nimberger, Houston, TX (US);
Robert L Ward, Missouri City, TX (US);
Precision General, Inc., Houston, TX (US);
Abstract
The present invention is directed to a valve system which upon disconnection essentially eliminates the release of liquids and vapors to the atmosphere. The invention includes a precision machined poppet and valve seat such that the leading end of the poppet and the end of the valve housing are flush when the valve is closed and such that the sides of the poppet are flush with the surface of the valve seat. Fluids and vapors are eliminated as the valve closes. The valve is not sealed until after closing. The invention is normally used with two flushly abutting valves which close sequentially for the elimination of liquids and vapors.