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:
Jul. 04, 1995
Filed:
Aug. 03, 1994
Applicant:
Inventors:
John L Haslbeck, Pittsburgh, PA (US);
Carroll H Sherman, Streetsboro, OH (US);
Scott M Harkins, Pittsburgh, PA (US);
Assignee:
NOXSO Corporation, Bethel Park, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34588 ; 34579 ; 34364 ; 34369 ; 1375276 ; 1375278 ;
Abstract
A downcomer including a tubular member oriented vertically and extending downwardly from a fluidized grid and including a lower portion provided with an inclined opening formed at a first angle with respect to the tubular member, and a flapper valve including an upper portion and a lower portion formed at a second angle with respect to the upper valve portion, the upper portion of the flapper valve is mounted pivotally to the tubular member at a position to normally place the lower portion of the flapper valve in engagement with and closing the inclined opening.