Abstract: A caster assembly including a unique drawn kingpin rivet formed of stainless steel or other material of appropriate toughness which compressively holds the components of the caster assembly together.

Abstract: A caster assembly including a unique drawn kingpin rivet formed of stainless steel or other material of appropriate toughness which compressively holds the components of the caster assembly together.

Abstract: A one-piece caster and leveler assembly to aid in the transportation and installation of equipment that combines a leveler with a rotable foot and a wheel chassis. During movement of the equipment, the leveler may be placed in a retracted position where the rotable foot contacts and pitches away from the wheels, and rotates as the direction of movement changes, providing improved clearance, load capacity and tolerance for striking obstacles.

Abstract: A one-piece caster and leveler assembly to aid in the transportation and installation of equipment that combines a leveler with a rotable foot and a wheel chassis. During movement of the equipment, the leveler may be placed in a retracted position where the rotable foot contacts and pitches away from the wheels, and rotates as the direction of movement changes, providing improved clearance, load capacity and tolerance for striking obstacles.

Abstract: Toys and methods for safely and reproducibly launching ring airfoils in a flying orientation. The toys generally comprise a member, a ring airfoil support mounted on the member, and a propelling element configured to move the ring airfoil support along the member from a first to a second position. Contact between the ring airfoil and the ring airfoil support causes the ring airfoil to move with the ring airfoil support as the ring airfoil support moves; this contact is overcome as the ring airfoil support decelerates at the second position, causing the ring airfoil to be launched with forward or both forward and spinning motion. The toys further may comprise a housing to protect the toy and user, a return element to place the toy in an engaged, launch-ready configuration, and a trigger to hold the toy in the engaged configuration until launching.

Abstract: An interactive computerized apparatus and method for presenting medical information for diagnosis and study of disease is disclosed. Findings of disease are color-coded according the significance of the presence or absence of each finding in ruling in or ruling out the possibility of the disease being present and presented on a color display to aid a physician or other user to diagnose or study disease.