Abstract: Systems and methods to tell apart computers and humans using image recognition task having a dynamic graphical arrangement of randomly selected images. The images can be arranged as a grid or matrix for presentation on a device display for authentication of a user as human. The kinds of graphical images can be derived from a selected category for the image recognition task. A series of randomly generated access codes corresponding to the images can be displayed with the images. The user may enter the access codes corresponding to images from the selected category. An authentication server can compare the access code entry to an authentication reference code corresponding to the particular arrangement of images. The selection of images, their arrangement and their corresponding access codes, may dynamically change in between verification sessions.

Abstract: The present invention relates to an infusion packet comprising a single sealed compartment (16), the compartment having a top (8) and a bottom (9) defined by two transverse seals (7) that are separated by a distance D, the distance D being in the range of 40 to 70 mm, wherein the compartment comprises at least one side gusset (15), the side gusset (15) consisting of two gusset panels (12) and three gusset creases (13, 14).

Abstract: Heat sealing apparatus for packaging machinery and particularly suitable for form, fill and seal packaging machinery. The heat sealing apparatus is for forming a continuous lengthways extending seal (29) on a web (18) of packaging material to be fed past it. The apparatus comprises a nozzle (50) connectable to a hot gas producer (62) which produces a flow of hot gas having a substantially constant temperature. The nozzle is mounted on a carrier (52) which is connected with a servo motor drive (56). The servo motor is controlled by a control system (48) so that in use it moves the nozzle relative to the web in accordance with variations in web feed velocity such that the flow of hot gas from the nozzle can apply a substantially constant heat to the web to form the seal (29). The apparatus allows a hot air producer which outputs hot air at a constant temperature and volume flow rate to apply a constant heat along the seal area despite variations in the web feed speed.

Abstract: A vertical form, fill and seal (VFFS) packaging machine comprising a pair of sealing jaws (12; 100; 200, 202; 302, 304) mounted directly or indirectly on parallel shafts (10; 102; 206, 208; 300) for rotation in opposite directions on opposite sides of the path of the packaging material (36; 118; 204, 308) so that the jaws engage the packaging material simultaneously on opposite sides to form successive horizontal seals, and stripping means comprising, in association with the sealing jaw on each side of the path of the packaging material, a pair of stripper carriers (22; 54; 66; 116; 222, 224, 226, 228; 314) mounted for rotation around the corresponding shaft at or near the respective ends thereof, or about an axis parallel to the shaft, a horizontal stripper bar (18B; 40A; 50A; 62; 110; 234; 310) mounted at its respective ends on the two stripper carriers and arranged to be movable with respect to the stripper carriers so that the stripper bar can engage the packaging film along a predetermined vertical strip

Abstract: A vertical form, fill and seal (VFFS) packaging machine comprising a pair of sealing jaws (12; 100; 200,202; 302,304) mounted directly or indirectly on parallel shafts (10; 102; 206,208; 300) for rotation in opposite directions on opposite sides of the path of the packaging material (36; 118; 204; 308) so that the jaws engage the packaging material simultaneously on opposite sides to form successive horizontal seals, and stripping means comprising, in association with the sealing jaw on each side of the path of the packaging material, a pair of stripper carriers (22; 54; 66; 116; 222,224,226,228; 314) mounted for rotation around the corresponding shaft at or near the respective ends thereof, or about an axis parallel to the shaft, a horizontal stripper bar (18B; 40A; 50A; 62; 110; 234; 310) mounted at its respective ends on the two stripper carriers and arranged to be movable with respect to the stripper carriers so that the stripper bar can engage the packaging film along a predetermined vertical stripping p