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. 17, 2014
Filed:
Aug. 29, 2008
Applicants:
Clifford L. Johns, Louisville, KY (US);
Daniel D. Sympson, Louisville, KY (US);
Inventors:
Clifford L. Johns, Louisville, KY (US);
Daniel D. Sympson, Louisville, KY (US);
Assignee:
Extundo Incorporated, Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device and method for removing particles, such as catalyst, from a chemical reactor tube by inserting a hollow tube body into the bottom end of a vertical tube, sealing between the hollow tube body and the vertical tube, blowing a gas through the hollow tube body into the bottom of the vertical tube, and vacuuming the top of the vertical tube while continuing to introduce gas into the bottom of the vertical tube.