Abstract: Systems and method are provided for controlling a gap between objects to be scanned by security scanning systems. In one aspect, a method is provided for maintaining a predetermined gap between successive objects to be scanned by a security scanning machine. The method includes measuring an initial gap defined between a trailing edge of a first object and a leading edge of a second object and, based on a comparison between the initial gap and the predetermined gap, controlling a speed of a first conveyor relative to a speed of a second conveyor operatively coupled to the first conveyor such that the predetermined gap between the first object and the second object is maintained.

Abstract: A one-piece mat for covering the floor of a motor vehicle of the type having two separated front seats and at least one removable back seat. The mat is formed from one piece and can be installed without any cutting by the user. The mat has a squared hourglass shape so that it may cover the front floor, the space between the two separated front seats and the rear floor. The mat has openings for seat brackets and is especially useful for vans.

Abstract: An artificial frond for use with artificial plants comprises an integral sheet of flexible polymeric material molded generally in the shape of a frond having a central elongate stem portion and a plurality of elongate leaves extending outwardly from the stem portion. Reinforcing means sufficient to maintain the structural integrity of the artificial frond, including structural supporting rods and elasticity-imparting fiber material, are embedded within the integral sheet. The integral sheet is preferably a laminate having a flexible polymeric foam intermediate body layer and outer surface layers pigmented to simulate the color of a natural frond.