Abstract: A portable staging assembly having a first platform panel pivotally connected to a second platform panel with the second platform panel further being pivotally connected to a base assembly. When the first and second platform panels are in a position for use substantially parallel to a ground surface, the second platform panel is supported by a plurality of ground engaging supports and the first platform panel is supported by at least one ground engaging support and by the second platform panel. The invention further provides a method of assembling the portable staging assembly.

Abstract: A portable staging assembly having a first platform panel pivotally connected to a second platform panel with the second platform panel further being pivotally connected to a base assembly. When the first and second platform panels are in a position for use substantially parallel to a ground surface, the second platform panel is supported by a plurality of ground engaging supports and the first platform panel is supported by at least one ground engaging support and by the second platform panel. The invention further provides a method of assembling the portable staging assembly.

Abstract: A self-stabilizing telescopic leg assembly for use in supporting a portion of a platform assembly above a floor surface. The telescopic leg assembly has at least one first leg portion slidably engaging at least one second leg portion. The leg assembly also has at least one pin adapted to simultaneously engage a hole passing laterally through the first leg portion and an angled slot passing laterally through the second leg portion, wherein when the leg assembly is in a vertical orientation, the pin transfers a vertical load from the first leg portion to the second leg portion and causes engagement between the first and second leg portions in a direction at an angle to the vertical orientation of the leg portions.

Abstract: A telescopic seating riser assembly capable of being configured into a variety of seating riser systems. The assembly has a plurality risers having vertically spaced substantially horizontal portions with the risers being movable between an extended position for use and a retracted position for storage. The assembly is further constructed to support deck bridging panels between spaced apart pairs of assemblies, and to utilize a method of supporting at least one deck bridging panel on a pair of spaced apart telescopic seating riser assemblies in an extended position for use and in a retracted position for storage of the assemblies.

Abstract: An extendible leg device for use in supporting a portion of a platform assembly above a floor surface. The extendible leg device has a leg tube that slidably receives a foot tube which is moved relative to the leg tube via selective rotation of an axle. The axle has a first link pivotally connected to a first end of a second link which second link is further pivotally connected at its second end to the foot tube.

Abstract: An extendible leg device for use in supporting a portion of a platform assembly above a floor surface. The extendible leg device has a leg tube that slidably receives a foot tube which is moved relative to the leg tube via selective rotation of an axle. The axle has a first link pivotally connected to a first end of a second link which second link is further pivotally connected at its second end to the foot tube.

Abstract: A telescopic seating riser assembly capable of being configured into a variety of seating riser systems. The assembly has a plurality risers having vertically spaced substantially horizontal portions with the risers being movable between an extended position for use and a retracted position for storage. The assembly is further constructed to support deck bridging panels between spaced apart pairs of assemblies, and to utilize a method of supporting at least one deck bridging panel on a pair of spaced apart telescopic seating riser assemblies in an extended position for use and in a retracted position for storage of the assemblies.

Abstract: An athletic training device having at least a base, a pad assembly and biasing members is adapted to permit primary rotation and translation, as well as secondary rotation of the pad assembly. Primary movement may be triggered by an operator to assist in developing faster player reaction times, while the secondary movement is permitted to assist players in developing techniques involved in engaging an opposing player.

Abstract: A gauntlet athletic sled for use by football trainers has a sled frame with spaced apart side sections defining a runway between them from a front end to a rear end. A front to rear extending series of readily removable, position adjustable inflated resilient arms project from the side sections laterally into the runway to create a predetermined obstacle path simulating the arms and hands of would be tacklers, which must be deflected aside to permit passage of the runner down the pathway. The varied pressure of arm inflation controls the resistance to passage of the runner proceeding down the runway.

Abstract: A versatile, space-efficient rotary sheeter including a pair of roll assemblies synchronously driven and rotating at web speed. Each assembly carries cooperating revolving cutter rolls and backup slot rolls staggered on opposed supporting roll assemblies and being readily shiftable, through gearing, between time-controlled operative and inoperative phasing modes for conveniently converting a moving web of roll stock of sheet material into cut segments of selectable lengths. The apparatus is physically fixed in place during operation and operates without any need for an accumulation loop in the moving web. The sheeter is readily adjustable, easily maintained, and has enhanced safety features. It operates over a wide range of adjustable speeds to accommodate web stock of various compositions and thickness.