Abstract: A non-contact, air-activated lifting and tamping device which incorporates a means of producing a Bernouilli airflow at the device nozzle, creating an adjacent low air pressure region for inducing lift; and which includes provision for high velocity air jets for tamping operation. The device is compact, never clogs or ices and is easily adjustable for a wide range of applications.

Abstract: A tube dispenser 10 and a dispensing method for collapsible tubes 24 are disclosed for operation by one hand. The dispenser has a pistol-like handle 12 which allows a high torque to consistently be applied to the tube by the thumb, thereby dispensing the tube's contents rapidly and in a uniform bead.

Abstract: A light computer is provided for illuminated and animated displays. Light planes are illuminated and images carried thereon are lit when light is applied to any edge. A moving light and opaque coatings on the edges of the light plane are used to vary the sequence and time the frequency and duration of the lighting of the plane. When an opaque coating is positioned between the light and the plane, the plane does not light. Only when the opaque coating is not present and the light is present is the plane lit. In a preferred embodiment, the light source is mounted at the end of a stack of circular light planes and light from the light source is admitted to the edges of the light planes by means of a rotating mask having a window leading to a prism for reflecting the light onto the edges.

Abstract: A game bag for a scuba diver is provided having a flexible tubular envelope with an open end or mouth and a closed end. The mouth is coupled to the diver's weight belt at his hip while the remainder of the envelope wraps around behind his seat and adjacent leg between his legs where it is again couple to his weight belt at his front abdomen. The legs serve as a doorway into the receiver portion of the bag. Game is pushed into the mouth of the bag with one hand, between the legs which are opened to allow passage, and into the receiver portion where it is retained by the closure of the legs on the bag. A separate latch on the mouth of the bag may be used to close the mouth although it is not required to retain the game in the receiver portion.