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. 02, 2009
Filed:
Jul. 18, 2006
Mark W. Pilling, Jenks, OK (US);
Dale Edward Nutter, Peralta, NM (US);
Mark W. Pilling, Jenks, OK (US);
Dale Edward Nutter, Peralta, NM (US);
Sulzer Chemtech AG, Winterthur, CH;
Abstract
The valve for a contract tray employs an aperture in a deck that is of rectangular or trapezoidal shape with upstanding walls at the sides of the aperture. The valve body is disposed in the aperture with a cover above the aperture and legs that extend downwardly to interfit with at least the upstream end of the walls to block the liquid flow. The valve body may be fixed or movable. In the movable embodiment, the valve body is seated on the walls about the aperture to close the aperture. The ascending vapor lifts the valve to allow bubbling of the vapor in the liquid on the deck.