Patent · US Expired

Device for welding plastic films

US6962557B2 · kind B2 · utility

0Cited by

24References

10Claims

0Family size

Assignee

LEMO MASCHINENBAU GMBH · DE

Inventors

Armin Meyer · Belfaux, CH
Jakob Schneider · Niederkassel, DE

Key dates

Filing date	Sep 11, 2002
Grant date	Nov 8, 2005
Priority date	—
Expiry date	Sep 11, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB31B50/64
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Devices for cross-welding or cross-separating welding plastic films (2) are used in a manner known per se in machines for producing bags, said devices comprising a welding roller (3) and a heated welder terminal (4) which can be moved reciprocally and between which the plastic films (2) are guided for welding. According to the invention, the welding roller (3) is covered by a continuous belt (5).

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