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:
Nov. 23, 1982
Filed:
Mar. 05, 1981
Burton D Ziels, Lancaster, OH (US);
The Babcock & Wilcox Company, New Orleans, LA (US);
Abstract
The feed tube of a long retracting sootblower has a lance tube slidably overfitted thereon which is of an inside diameter somewhat exceeding the outside diameter of the feed tube, to provide a relatively narrow gap therebetween. The open end of the feed tube has a turbulizer mounted therein contoured to impart a helical component to the blowing fluid which blows into the lance tube from the feed tube. At a position spaced upstream from the turbulizer the wall of the feed tube is pierced with a plurality of holes equally spaced throughout its periphery. The holes provide centering jets which oppose vibration of the feed tube and prevent impacting of the same against the interior of the lance tube.