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:
Jul. 22, 1980
Filed:
Dec. 19, 1977
Franco Straffi, Dresano, IT;
Breda Termomeccanica S.p.A., Milan, IT;
Abstract
The invention relates to a grate for supporting tube plates for assembling in a steam generator or the like. The grate is characterized in that the ends of the plates forming the grating penetrate into and are received, at least partially, without any longitudinal gap or clearance in grooves in the frame body, which frame is preferably formed by three rings, at least partially superimposed, of which the intermediate ring has said grooves, while the other two upper and lower rings are secured to said intermediate ring and enclose therebetween the ends of the individual plates threaded in the grooves of the intermediate ring; a diametrical stiffening device secured by welding is also provided. It is the object of the invention to provide an economical and efficient grate allowing to avoid welding of the plates to one another and between said plates and frame, while ensuring the greatest reliability.