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:
Aug. 27, 2013
Filed:
Feb. 27, 2009
Oliver G. Briggs, Jr., Jefferson, MA (US);
Oliver G. Briggs, Jr., Jefferson, MA (US);
ALSTOM Technology Ltd, Baden, CH;
Abstract
A simple, economical and reliable swirl register [] is described for use with a wall burner of a commercial boiler. It employs a number of spaced swirl blocks [] that connect side plates []. A number of moveable vanes [] are provided in the air ducts [] created between the swirl blocks []. The vanes [] are attached to vane rods [] that operate the vanes []. The swirl blocks [] are lightweight and rigid structures for holding the side plate [] a fixed distance from side plate []. The block construction reduces binding of the vanes [] as the swirl register [] receives differential heating. The vane rods [] extend through a windbox front plate [] outside of the windbox area. A linkage assembly [] rotates the vane rods []. A motor and gearbox [] cause all vanes [] to rotate the same amount.