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:
Mar. 20, 2001
Filed:
Feb. 25, 1999
Applicant:
Inventors:
Assignee:
Softard Industries Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 8/02 ; B01J 3/800 ; B65G 6/540 ;
U.S. Cl.
CPC ...
B01J 8/02 ; B01J 3/800 ; B65G 6/540 ;
Abstract
A catalyst dumping device (,) for unloading a catalyst (,) inside a reactor (,), in which smashed used catalyst is thrown into a dumping pipe (,) formed of a plurality of pipe member (,) provided to the reactor (,) to unload to outside of the reactor (,) by fall by dead weight. Accordingly, the catalyst can be unloaded only by throwing the catalyst into the dumping pipe (,), thereby improving work efficiency. Furthermore, no special apparatus such as a vacuum apparatus is unnecessary, thereby reducing cost for the special apparatus.