Patent · US Active

Sealing apparatus and method for sealing packages

US11845579B2 · kind B2 · utility

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0References

10Claims

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Assignee

Harro Hoefliger Verpackungsmaschinen GmbH · DE

Inventors

Andreas Thaler · Allmersbach im Tal, DE
Daniel Birkhold · Allmersbach im Tal, DE

Key dates

Filing date	Jun 10, 2022
Grant date	Dec 19, 2023
Priority date	—
Expiry date	Jul 16, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65B51/026
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

An apparatus and a method are for sealing packages on a flatbed machine. The package is formed from a base-film web and a water-soluble cover-film web. The sealing apparatus includes a liquid supply, at least one moistening unit, and a pressing device for vertically pressing and sealing the cover-film web together with the base-film web. The moistening unit has a moistening roller and a spraying device, the moistening unit being able to be switched between a first operating state and a second operating state. In the first operating state, the moistening roller acts on the cover-film web at a roller moistening location. During or after a machine standstill period, the sealing apparatus is transferred to a second operating state in which the spraying device acts on a spray portion of the cover-film web. The spray portion lies between the roller moistening location and the sealing location in the feed region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.