Abstract: The present invention relates to a closure device for bags or the like comprising two complementary profiled elements (110, 210), characterized in that it involves sequential squeezing (300), of the two engaged profiled elements (110, 210), in a direction perpendicular to the support webs (100, 200).

Abstract: The present invention relates to a device for closing pouches or the like comprising a series of complementary parallel profiles (110a-110e, 210a-210e), said profiles being carried by respective supporting sheets (100, 200), characterised in that said device has sequential alterations (300) in at least one profile (110, 210) along a direction perpendicular to the supporting sheets (100, 200).

Abstract: The present invention relates to a closure device for bags or the like comprising two complementary profiled elements (110, 210), characterized in that it involves sequential squeezing (300), of the two engaged profiled elements (110, 210), in a direction perpendicular to the support webs (100, 200).

Abstract: The present invention relates to a device for closing pouches or the like comprising a series of complementary parallel profiles (110a-110e, 210a-210e), said profiles being carried by respective supporting sheets (100, 200), characterised in that said device has sequential alterations (300) in at least one profile (110, 210) along a direction perpendicular to the supporting sheets (100, 200).

Abstract: The invention concerns a method to manufacture fastening assemblies (1) for bags, characterized in that, for each assembly (1), it comprises the steps of supplying interlocking profiles (11) provided with flanges (12) for attachment to a bag; mounting an actuating slider (13) on the profiles (11); forming two end stops (2) for the slider (13) in the profiles (11); forming two lumens (3) in the attachment flanges (12); each lumen (3) having a longitudinal extension (E/2); forming two lines of weakness (4) between each lumen (3) and an upper part (111) of the profiles (11). The invention also concerns a corresponding bag-forming method, a corresponding strip of assemblies, and corresponding bag.

Abstract: The present invention relates to a device for applying runners (32) on closure profiles (22), comprising various actuator means (110, 120, 130, 140) driven by a common driving means (150), including a wheel (110) for driving a chain of runners (32) temporarily linked together by breakable bridges (34) in order to transfer successively each runner (32) towards an application station on the closure profiles (22); characterized in that the device includes means (170) for manually disengaging the driving wheel (110) relative to the other actuator members (120, 130, 140). The invention also relates to a method and a machine implementing the above-mentioned runner application device, and to the closure profiles and bags thus obtained.

Abstract: The present invention relates to a method for making a string (C) of packaging bags (S) formed with two walls (21, 22), according to which the following steps are applied: a) a sheet (2) of plastic material folded on itself longitudinally, or two distinct sheets, are used for delimiting two parallel walls; b) the connecting region of the walls (21, 22) of said sheet (2) is conformed in order to give it an “M” gusset profile; c) matching closure profiles are longitudinally attached on the faces opposite this gusset, and then d) said bags (S) are individualized pairwise by making a separation (25) and a weld perpendicular to said profiles (30, 31), characterized by the fact that a cursor (5) is placed on said profiles before applying said step d).

Abstract: The invention concerns a method to manufacture fastening assemblies (1) for bags, characterized in that, for each assembly (1), it comprises the steps of supplying interlocking profiles (11) provided with flanges (12) for attachment to a bag; mounting an actuating slider (13) on the profiles (11); forming two end stops (2) for the slider (13) in the profiles (11); forming two lumens (3) in the attachment flanges (12); each lumen (3) having a longitudinal extension (E/2); forming two lines of weakness (4) between each lumen (3) and an upper part (111) of the profiles (11). The invention also concerns a corresponding bag-forming method, a corresponding strip of assemblies, and corresponding bag.

Abstract: The present invention relates to a device for applying runners (32) on closure profiles (22), comprising various actuator means (110, 120, 130, 140) driven by a common driving means (150), including a wheel (110) for driving a chain of runners (32) temporarily linked together by breakable bridges (34) in order to transfer successively each runner (32) towards an application station on the closure profiles (22); characterised in that the device includes means (170) for manually disengaging the driving wheel (110) relative to the other actuator members (120, 130, 140). The invention also relates to a method and a machine implementing the above-mentioned runner application device, and to the closure profiles and bags thus obtained.