Device for sealing lengths of filter paper

Details Device for sealing lengths of filter paper Device for sealing lengths of filter paper

2007-11-27

2007-11-27

Rada, Rinaldi I. (Department: 3721)

Package making

With cover-adjunct application or formation

Adjunct comprising graspable appendage, e.g., handle

C053S128100, C053SDIG003

Reexamination Certificate

active

10546280

ABSTRACT:
A device for sealing filter bags for products for infusion, where each filter bag is made from a flat web (1) of filter paper and has applied to it a tag (1b) and a tie string (1a) connecting the tag (1b) to the filter bag itself, comprises at least: a sealing sonotrode element (3) positioned so that it faces a first path (P) along which the flat web (1) is fed and so as to seal the string (1a), which is arranged according to a defined pattern, and the tags (1b) to each other and to the flat web (1) of filter paper'.; drive means (4) for imparting to the sealing sonotrode means (3) a defined motion towards and away from a sealing position; the drive means (4) in turn comprising first means (5) acted upon by the sealing sonotrode element (3) and designed to apply a predetermined force (F) to the sealing sonotrode element (3) itself; second means (6) for opposing the action of the first means (5), that is to say, for reducing its intensity, and third control means (7) for disabling the second means (6), during predetermined steps of passing the filter bag components under the sealing sonotrode element (3), so as to permit a predetermined sealing contact.

REFERENCES:
patent: 3551260 (1970-12-01), Catherwood
patent: 3562041 (1971-02-01), Robertson
patent: 3681176 (1972-08-01), Reifenhauser et al.
patent: 3939033 (1976-02-01), Grgach et al.
patent: 4072089 (1978-02-01), Bosche
patent: 4145236 (1979-03-01), Neumayer et al.
patent: 4404052 (1983-09-01), Persson et al.
patent: 4433527 (1984-02-01), Ramsey et al.
patent: 4517790 (1985-05-01), Kreager
patent: 4681645 (1987-07-01), Fukushima et al.
patent: 4713132 (1987-12-01), Abel et al.
patent: 4784591 (1988-11-01), Ackermann
patent: 4880651 (1989-11-01), Christie
patent: 5421924 (1995-06-01), Ziegelhoffer et al.
patent: 5553443 (1996-09-01), St. Clair et al.
patent: 5667608 (1997-09-01), Rajala et al.
patent: 5890347 (1999-04-01), Giacomelli et al.
patent: 5934043 (1999-08-01), Aindow et al.
patent: 5948208 (1999-09-01), Speich
patent: 5989370 (1999-11-01), Wannebo
patent: 6592711 (2003-07-01), Kubik
patent: 6835257 (2004-12-01), Perrine
patent: 37 15 146 (1988-12-01), None
patent: 0 251 070 (1988-01-01), None
patent: 0 916 476 (1999-05-01), None
patent: 9-24907 (1997-01-01), None
patent: WO 2004/054880 (2004-07-01), None

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