APPARATUS AND METHOD FOR WELDING

Title:

APPARATUS AND METHOD FOR WELDING

Document Type and Number:

WIPO Patent Application WO/2011/055325

Kind Code:

A3

Abstract:

An apparatus for welding a covering film (90) superimposed on a sheet (100) of thermoformable plastic material provided with a plurality of containers (101) thermoformed thereupon, comprises first plate means (2) provided with an operating wall (20) for supporting the sheet (100) and second plate means (4) provided with welding means (5) for pressing the film (90) and the sheet (100) against the operating wall (20) such as to weld the film (90) and the sheet (100); the sheet (100) comprises a plurality of through holes (102) interposed between the containers (101), and the first plate means (2) comprises conduit means (5) leading onto the operating wall (20) at the through holes (102) for sucking air from the containers (101), and/or for leading a gas to the containers (101).

Inventors:

BARTOLI ANDREA (IT)
TRALDI FLAVIO (IT)
CAVAZZOLI GIANNI (IT)

Application Number:

PCT/IB2010/055005

Publication Date:

June 30, 2011

Filing Date:

November 04, 2010

Export Citation:

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Assignee:

SARONG SPA (IT)
BARTOLI ANDREA (IT)
TRALDI FLAVIO (IT)
CAVAZZOLI GIANNI (IT)

International Classes:

B65B7/16

Foreign References:

EP1908689A2	2008-04-09
EP0347825A1	1989-12-27

Other References: