Abstract: A restraining assembly for use in conjunction with a linear transducer. The restraining assembly comprises a plurality of spaced apart magnets positioned on a stationary frame, where the magnets provide a reverse torque and restrict excessive rotational speed on a spool when a copper disc or equivalent magnetic flux medium is rotated at a close proximity to the face of the magnets. When a cable is suddenly released and allowed to freely return on the rotating spool, the restraining assembly restrains the high rotational speed at which the cable can accelerate when returning or retracting to the spool, such that the restraining assembly prevents the cable from self-destruction and/or damage to the linear transducer.

Abstract: A high intensity lamp is provided for use in studio and theatrical lighting applications and the like, wherein the lamp includes an improved ventilated lamp housing for enhanced convective air flow to dissipate generated heat energy. The lamp housing has a generally cylindrical shape with a high intensity lamp bulb supported therein and a forward open end. The lamp housing is constructed from a plurality of inner and outer rings assembled in a concentric and axially overlapping relation to define a sequence of radially and axially open flow paths of expanding cross-sectional size to induce an enhanced convective cooling air flow from the interior to the exterior of the lamp housing.

Abstract: A locking mechanism for assembled threaded coponents, including a circumferential tongue on one of the components and a corresponding notch on the other component. As a locking position is approached, the tongue is biased out of its normal position by a camming surface adjacent to the notch, and is then released into the notch as the locking position is reached. Unlocking only requires the tongue to be moved out of the notch momentarily during rotation from the locking position.

Abstract: A water jet aerator in combination with a diverter valve including an aerator housing, a valve body that is rotatably positioned within the aerator housing, and a swivel nozzle. The aerator housing includes a water inlet conduit, a water outlet conduit, and an air inlet conduit, while the valve body forms two chambers, a diverter chamber and an aeration chamber. As the valve body is rotated in one direction within the aerator housing, water flow from the water inlet conduit to the aeration chamber is diverted to the water outlet conduit, while the air inlet conduit is proportionally closed to the aeration chamber. As the valve body is rotated in the other direction, water flow from the water inlet conduit to the water outlet conduit is diverted to the aeration chamber, while the air inlet conduit is proportionally opened to the aeration chamber.

Abstract: A rigid, hollow transparent ball has a figure therewithin. As the ball rotates, the figure is rotated by the mesh between a gear fixed to the figure and a gear fixed to the inner surface of the ball.