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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.:

US 10689211 B1

PDFFull Text
Date of Patent:
Jun. 23, 2020

Filed:

Jul. 22, 2015

Pipe for conveying abrasive materials such as concrete, apparatus and method for producing said pipe

Applicant:

Valme S.r.l.—unico Socio, Rogolo, IT;

Inventors:

Fabio Ferre', Morbegno, IT;

Domenico Mottarella, Cosio Valtellino, IT;

Davide Cipolla, Cantù, IT;

Assignee:

VALME S.R.L.-UNICO SOCIO, Rogolo, IT;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

David Bochna

Int. Cl.
CPC ...
B21C 37/28 (2006.01); B65G 53/52 (2006.01); B23P 11/02 (2006.01); F16L 43/00 (2006.01); B21D 22/02 (2006.01); F16L 57/06 (2006.01); B21C 37/15 (2006.01); B65G 53/32 (2006.01); F16L 9/18 (2006.01); F16L 23/00 (2006.01); B21D 39/04 (2006.01); F16L 58/10 (2006.01); F16L 13/02 (2006.01);
U.S. Cl.
CPC ...
B65G 53/523 (2013.01); B21C 37/154 (2013.01); B21C 37/28 (2013.01); B21D 22/022 (2013.01); B21D 22/025 (2013.01); B23P 11/025 (2013.01); B65G 53/32 (2013.01); F16L 9/18 (2013.01); F16L 23/00 (2013.01); F16L 43/001 (2013.01); F16L 57/06 (2013.01); B21D 39/04 (2013.01); F16L 13/02 (2013.01); F16L 58/1036 (2013.01);
Abstract

A method and apparatus for producing a curved tubular segment includes obtaining a curved external tubular element and a curved internal tubular element. The curved internal tubular element is made of a material having a resistance to wear greater than that of the curved external tubular element and has a cross section such as to cover at least part of the internal surface of the curved external tubular element. The curved internal tubular element is inserted inside the curved external tubular element after heating the latter by a heating unit. To form the curved external tubular element on the exact geometry of the curved internal tubular element, a molding unit and a cooling unit are used to obtain a curved tubular segment without spaces between the curved external tubular element and the curved internal tubular element.

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