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:
Jan. 03, 1978
Filed:
May. 04, 1976
Applicant:
Inventors:
Charles A Drake, Bartlesville, OK (US);
Glyndal D Cowan, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B67D / ;
U.S. Cl.
CPC ...
23289 ; 2328 / ; 222189 ;
Abstract
In a batch process in which fluid is contacted with solid particles in a vessel and withdrawn therefrom through a passageway, the passageway is provided with filtering means to prevent solid particles from escaping. The next batch of feed is introduced into the vessel through the same passageway causing displacement of the particles retained by the filtering means and carrying them back into the contacting zone of the vessel.