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:
Dec. 05, 1978
Filed:
Mar. 22, 1976
Applicant:
Inventor:
Franco Straffi, Milan, IT;
Assignee:
Breda Termomeccanica S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
248 / ; 165 74 ; 165 82 ; 165162 ;
Abstract
A supporting grid for pipes comprising a frame and a reticular structure made of different materials having different thermal expansions, wherein a manhole and associated cover are provided, wherein said cover is made with the same material as the reticular structure and is secured to it, and wherein one or more connections are provided between said cover and said frame for preventing only tangential movements relative to the frame, while one or more connections are provided for preventing only movements perpendicular to the grid surface, enabling all these connections free thermal expansion of said reticular structure and said cover relative to said frame.