Drum with improved structure for processing leather or similars

(19)

(11)

EP 1 420 071 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	13.07.2005 Bulletin 2005/28

(43)	Date of publication A2:
	19.05.2004 Bulletin 2004/21

(21)	Application number: 03024984.1

(22)	Date of filing: 30.10.2003

(51)	International Patent Classification (IPC)⁷: C14C 15/00

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

(30)

Priority:

04.11.2002 IT PI20020063

(71)	Applicant: Italprogetti Engineering S.R.L.
	San Romano, 56020 Montopoli V.A. (IT)

(72)	Inventor:
	Serrini, Mario 56024 San Miniato (IT)

(74)	Representative: Gritschneder, Martin, Dipl.-Phys. et al
	Patentanwälte Abitz & Partner Postfach 86 01 09 81628 München 81628 München (DE)

(54)	Drum with improved structure for processing leather or similars

(57) In a drum (10) for processing leather or similar, a partial or total covering of the metallic cylindrical surface (11) is provided, by means of pressed sheet metal (19), and in particular embossed sheet metal, fixed to said surface (11) by welding executed both along the perimeter and in internal points of the sheet metal. The interstice that takes shape between the cylindrical surface (11) of the drum and the covering sheet metal (19) has a small volume, useful to allow the speeding up of the heating and cooling phases of the drum. A structural enforcement of the cylindrical surface of the drum and a simplification in the creating of the interstice are also obtained through the above covering.

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