Title:
通気可能な袋
Document Type and Number:
Japanese Patent JP2009500251
Kind Code:
A
Abstract:
Disclosed is a ventilatable bag comprising a flat web (1) of a bag material which is shaped into a tube by overlapping the longitudinal edge regions thereof, one end of said tube being closed or being embodied as a bottom. The bag material is impermeable to air while comprising perforations (1g, 1h) in subareas (1d, 1e; 1i, 1j; 1k, 1l, 1m, 1n; 1o, 1p, 1r, 1s) of the longitudinal edge regions. The perforations (1h) located in one longitudinal edge region (1e) are offset relative to the perforations (1g) located in the other, overlapped longitudinal edge region (1d). The overlapped longitudinal edge regions are fixed to the adjoining layer of the bag material (1) by means of a joint (2, 3). The perforations (1g) in the overlapped longitudinal edge region (1d) are provided with a configuration and/or an arrangement allowing less air to penetrate than the perforations (1h) in the overlapping longitudinal edge region (1e), perforations (1h) having a greater cross-sectional area and/or a larger number of perforations (1h) per surface unit being embodied in the overlapping longitudinal edge region (1e) than in the overlapped longitudinal edge region (1d).
Inventors:
Neumüller, Norbert
Grill, hans
Schmalholtz, Peter
Grill, hans
Schmalholtz, Peter
Application Number:
JP2008519768A
Publication Date:
January 08, 2009
Filing Date:
July 08, 2005
Export Citation:
Assignee:
Stalinger und Company Gesellschaft Mitt Beschlenktel Haftung
International Classes:
B65D33/01
Domestic Patent References:
| JPS5470709A | 1979-06-06 | |||
| JPH0329751A | 1991-02-07 | |||
| JP2004161335A | 2004-06-10 | |||
| JPS6183542A | 1986-04-28 | |||
| JP2000191055A | 2000-07-11 | |||
| JP2000062849A | 2000-02-29 | |||
| JPH021648A | 1990-01-05 |
Attorney, Agent or Firm:
Ryoichi Takaoka
Kiyoshi Kato
Kiyoshi Kato