Abstract: A dual-configuration chair and backpack having at least one storage compartment with a back panel and a bottom panel held in rigid orientation to each other at a predetermined angle by an integral tubular frame having a two generally U-shaped frame portions fixed at the selected angle. A deployable seat is rotatably affixed to a lower edge of the back panel and includes a flat foam cushion formed at an angle complementary to the angle between the back and bottom panels of the backpack. When used as a seat the flat serves as a cushion under the buttocks of the user. When used as a backpack the flat is rotated up to the back panel such that the complementary angles position the cushion for proper lumbar and back support of the backpack load.

Abstract: A dual-configuration chair and backpack having at least one storage compartment with a back panel and a bottom panel held in rigid orientation to each other at a predetermined angle by an integral tubular frame having a two generally U-shaped frame portions fixed at the selected angle. A deployable seat is rotatably affixed to a lower edge of the back panel and includes a flat foam cushion formed at an angle complementary to the angle between the back and bottom panels of the backpack. When used as a seat the flat serves as a cushion under the buttocks of the user. When used as a backpack the flat is rotated up to the back panel such that the complementary angles position the cushion for proper lumbar and back support of the backpack load.

Abstract: A quality monitoring system employing vision processing equipment to photograph at least one of the edges of every folded-over box blank as it is conveyed through a box forming machine is used to determine in-line whether the blanks, when unfolded, will produce square boxes having essentially all 90.degree. angles between adjacent sides. The folded-over blanks have a manufacturer's gap between adjacent box side panels. The electronic images are electronically digitized and the resulting data processed by computer to calculate critical parameters of the folded-over blank, including gap width, longitudinal taper of the gap width, and alignment of the lateral edges of the panels surrounding the gap in relation to the lateral edge of the gap. Comparison of these measured critical parameters with corresponding parameters for an idealized box stored in the computer indicates the quality of the formed box and whether the quality falls within acceptable parameters.