EP 1003678 A4 20041208 - FLAT BOTTOMED PLASTIC BAG

Title (en)

FLAT BOTTOMED PLASTIC BAG

Title (de)

KUNSTSTOFFBEUTEL MIT FLACHEM BODEN

Title (fr)

SAC EN MATIERE PLASTIQUE A FOND PLAT

Publication

EP 1003678 A4 20041208 (EN)

Application

EP 99927147 A 19990601

Priority

US 9912195 W 19990601
US 8861398 P 19980609
US 8861298 P 19980609
US 8958298 P 19980617
US 8958398 P 19980617
US 9223298 P 19980709
US 9223398 P 19980709
US 25734599 A 19990225
US 25784899 A 19990225
US 25801099 A 19990225
US 25803399 A 19990225
US 25784399 A 19990225
US 25801599 A 19990225
US 25736199 A 19990225

Abstract (en)

[origin: WO9964307A1] An expandable plastic film gusseted bag in which each front panel gusset (64, 66) is connected to a rear panel gusset and each of the panel gussets is foldable between the front panel (63) and the rear panel to provide a continuous bag periphery. A bottom joins the bottom of the front panel, rear panel, two rear panel gussets and two front panel gussets at substantial right angles to the side edges of the front panel, rear panel, and gussets to close the bottom of the bag and leave only the top (62) open. The improvement provides the plastic bag with eight first linear folding axes adjacent the bottom. A linear folding axis is located within the front panel, each front panel gusset, the rear panel, and each rear panel gussets. Each folding axis extends from the joinder of a gusset at the bottom to a side edge of the front panel or the rear panel and the front panel gusset or the rear panel gusset at an approximate 45 DEG angle. The folding axes are made by a process restricted to a group consisting of a cold seal and a hinge in the plastic film while the film is planar. On opening of the expandable gusseted bag, the bottom seal of the bag disposed adjacent the gussets forms a generally triangular shaped overlay relative to the gussets to form a flat bottom bag.

IPC 1-7

B65D 30/18; B65D 33/14; B29C 65/18; B29C 65/00; B29C 65/76; B31B 37/00

IPC 8 full level

B29C 65/00 (2006.01); B29C 65/18 (2006.01); B29C 65/76 (2006.01); B31B 37/00 (2006.01); B65D 30/20 (2006.01)

CPC (source: EP US)

B29C 65/004 (2013.01 - EP); B29C 65/18 (2013.01 - EP); B29C 65/76 (2013.01 - EP); B29C 66/4312 (2013.01 - EP); B29C 66/4322 (2013.01 - EP); B29C 66/80 (2013.01 - EP); B29C 66/81427 (2013.01 - EP); B29C 66/8322 (2013.01 - EP); B65D 31/10 (2013.01 - EP US); B29C 66/1122 (2013.01 - EP); B29C 66/137 (2013.01 - EP); B29C 66/232 (2013.01 - EP); B29C 66/43129 (2013.01 - EP); B29C 66/72328 (2013.01 - EP); B29C 66/81422 (2013.01 - EP); B29C 66/8432 (2013.01 - EP); B31B 2150/00 (2017.07 - EP); B31B 2150/0012 (2017.07 - EP); B31B 2150/003 (2017.07 - EP); B31B 2160/106 (2017.07 - EP); B31B 2160/20 (2017.07 - EP); B31B 2170/00 (2017.07 - EP US)

Citation (search report)

[DYA] US 3915077 A 19751028 - LAFLEUR LEE, et al
[Y] GB 1117284 A 19680619 - HONSEL KARL HEINZ
[DA] US 4717262 A 19880105 - ROEN RALPH M [US], et al
[A] US 5135464 A 19920804 - BUCHANAN JERRY E [US]
[A] US 3292513 A 19661220 - PALMER CHARLES E
[A] US 2599567 A 19520610 - MCCRERY HAROLD E, et al
See references of WO 9964307A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9964307 A1 19991216; WO 9964307 A9 20000720; AU 4412399 A 19991230; AU 759885 B2 20030501; CA 2304215 A1 19991216; CA 2304215 C 20071002; EP 1003678 A1 20000531; EP 1003678 A4 20041208; MX PA00002426 A 20030721; NZ 503254 A 20020927

DOCDB simple family (application)

US 9912195 W 19990601; AU 4412399 A 19990601; CA 2304215 A 19990601; EP 99927147 A 19990601; MX PA00002426 A 19990601; NZ 50325499 A 19990601