Abstract: The present invention provides a toy water gun including a pump for pressurizing the gun for shooting out a stream of water, a trigger for controlling the flow of the water, and a source of electricity and at least one light source for illuminating the stream, wherein the device is adapted to provide a lighted coherent stream of water.

Abstract: The present invention provides an interactive robotic device having a body, a transport mechanism, a drive mechanism, a plurality of inputs and outputs for receiving, delivering and/or displaying information, including aural and/or visual information or signals, a container for carrying or holding items to be delivered or dispensed to a user, and a dispensing structure for dispensing items to a user.

Abstract: The present invention provides an interactive amusement device and system encompassing a primary robotic unit which performs actions communicated by a remote wireless transmitter and at least one secondary robotic unit which interacts through wireless communication with the primary robotic unit. In some embodiments, the primary and secondary robotic units interact with each other and the user.

Abstract: The present invention provides an amusement device wherein generally elongated, preferably stretchable member connects a ring at one end and a base a the other end. The ring is adapted to fit around an ankle region of a person, and the amusement device is adapted to be twirled about the ankle region, wherein the elongated member varies in length in accordance with the rate at which the device is twirled. The base is adapted to travel along the surface on which the device is being used, and carries a marker adapted to contact the surface, marking the surface as the base travels.

Abstract: A lightweight boom supported by a rotatable jib of a tower crane for introducing flowable concrete mix to form systems has a concrete conveying conduit which functions also as a structural member of the boom, in order that the overall weight of the latter is minimized. The elongated boom has a triangular configuration in transverse cross-section, with two parallel, co-planar, spaced upper members and a hollow, concrete conveying bottom member that is generally parallel to the two upper members and spaced below the same. Horizontally extending brace members interconnect the two upper members, and spacer bars depending from the two upper members are secured to the bottom member.

Abstract: An apparatus for the safe, cost-efficient disassembling of a sectionalized tower crane boom is provided that enables disassembling of the boom while the boom is at terminal heights. The disassembling apparatus includes a working platform that may be detachably coupled to an inboard boom section, a pair of independently controlled jibs for lifting and supporting the outermost boom section, and a supporting structure and puller hoist for shifting the position of a detached boom section to a position wherein the center of gravity of the detached section may be generally vertically aligned with the center of support for the disassembling apparatus. Vertical alignment of the disassembling apparatus' and the detached boom section's centers of gravity is provided to assure safe and stable lowering of the apparatus and detached boom section.

Abstract: A method and apparatus is disclosed for continuously pumping flowable concrete mix to elevated heights for introduction into forms used in the fabrication of annular structures such as concrete hyperbolic cooling towers. A tower crane is erected in the center of the circle for the hyperbolic structure and concrete conveying piping is provided for raising mix to a lateral conduit carried by a secondary boom suspended from the swingable overhead jib of the crane. A pumping unit at ground level forces concrete mix up the vertical piping on the tower and then through the boom supported conduit for delivery into the form structure. The jib and thereby the boom suspended therefrom are swingable through an arc of 180.degree. in one direction to cover one half of the form structure and then the jib and boom may be swung in the opposite direction through the remaining 180.degree. arc for introduction of mix into the form structure.