Abstract: A long-range house number identification panel has its number indicia mounted on an illuminated viewing screen, being individually readable with the naked eye from up to 200 feet distance. An electrically energizable phosphorescent screen behind the indicia serves to illuminate the numbers at night. The identifying indicia may consist of transparencies through the surface of a blanking screen. A photocell switches off the screen in daylight; and the level of screen illumination may be limited below the optimum, by operating at a reduced voltage so as to extend the service life of the screen. A u/v barrier coat may be used to protect the phosphor of the screen against solar degradation.

Abstract: A free standing antenna extending longitudinally to present a base and a free end, comprising a helical conductor disposed over an insulated metallic tube.

Abstract: A support for supporting the end of a shaft protruding from a conveyor roller for dampening the vibrations of the conveyor roller by providing a flexible connection between spaced first and second supports where the supports include structure for resisting the separation of the rubber. A method of dampening the transmission vibrations of a conveyor roller assembly is also provided.

Abstract: A plurality of levers each having one end adapted for attachment below a chair seat for controlling separate movements of a chair, each said lever having another end presenting a substantially planar surface terminating at a periphery, said periphery defining a geometric shape different from one another so as to tactually distinguish said levers and the associated movements of said chair controlled by said levers.

Abstract: An airborne time domain electromagnetic surveying system is provided. The system includes a tow assembly with a flexible support frame. The flexible support frame spaced apart from the aircraft includes a transmitter section with a transmitter loop and a receiver section with a sensor aligned with the central axis of the transmitter section. The flexible support frame has a lightweight modular structure that enables the surface area of the transmitter section to be increased and decreased to suit particular survey applications. The transmitter loop sends a pulse in an “ON” interval, and in an “OFF” interval the sensor measures the earth response to the pulse. The tow assembly also includes a sensor for generating selected survey data in the “ON” interval. A transmitter driver enables the creation of earthbound pulse. The system components are linked to a computer and control computer program linked thereto for controlling the functions thereof.

Abstract: A gaming apparatus, gaming kit and gaming method is provided, which involves throwing projectiles to hang off of, or wrap around, one or more support members of a target structure. A projectile is also provided, which includes two weights at either end of a rope member. The rules of play define points that awarded for throwing one or more projectiles to hang off of, or wrap around, one or more particular support members, or particular portions of such one or more particular support members. A self-supporting target structure is provided, as well as a target structure that can be mounted on a wall.

Abstract: A terrarium adapted to be immersed in an aquarium containing water, the terrarium comprising a shaft means having a first end and second end and a receptacle defining at least one wall, the at least one wall having a length, presenting at least one opening, an air exhaust and an interior wherein the receptacle is connected to the shaft means at the first end wherein the shaft means at the second end is adapted to anchor the receptacle in the aquarium and wherein the interior of the receptacle is adapted to receive air from an air supply means so as to define a dry zone in the interior.

Abstract: A system, computer program product and method of preventing and controlling sulfide mineral oxidation and generation of acid rock drainage in a mass of sulfidic waste is provided. The mass of sulfidic waste includes a cover. The method involves applying under the cover of an oxygen deficient/non-reactive gas mixture, substantially throughout the mass of sulfidic waste, in a quantity sufficient to create a pressure differential between the inside of the mass of sulfidic waste and the open atmosphere outside and adjacent to the mass of sulfidic waste, such that the oxygen gas concentration inside the mass of sulfidic waste is substantially equal to, or less than, the atmospheric oxygen gas concentration outside and adjacent to the mass of sulfidic waste. The system includes a distribution system and sensors for detecting acid rock drainage conditions of the mass of sulfidic waste, and in response applying an effective amount of oxygen deficient/non-reactive gas mixture.

Abstract: A pedestal adapted to support a floor panel comprising a base, support means for supporting said floor panel above said base, displaceable means operable between said base and said support means for selectively displacing said support means and said floor panel relative to said base so as to level said floor panel while said floor panel is supported by said support means.

Abstract: An extruder for producing a thermoplastic material having a first and second portion, namely, an axially extending barrel; first and second screw conveyers co-axially disposed within said barrel, said second screw conveyer co-axially disposed within said first screw conveyer with relative rotatable movement between said first and second screw conveyers so as to define a first passage for conveying thermoplastic material from an input to a melt zone and then an output and define a second passage from said melt zone to said output; a connecting passage for communication between said first and second passages whereby a first portion of said thermoplastic melt is conveyed through said first passage to said output and another portion of said thermoplastic melt is conveyed through said connecting passage and through said second passage to said output; means for changing the characteristic of said portion; means for merging said first and second portions together.

Abstract: A pipe-cutting device comprising a portable support; a device for rotating said pipe relative the support; a cutter associated with said support for cutting the pipe during rotation of the pipe.

Abstract: A self cleaning conveyor roller for supporting a conveyor media carrying contaminant materials. The conveyor roller consists of a drum defining a support surface, having a generally cylindrical shape, and being adapted to be supported for rotation, for supporting a conveyor media. The conveyor roller has a plurality of abutments on the support surface, raised above the support surface, and defining a series of spaced apart conveyor media support ridges lying on a circular configuration, concentric with the drum. The abutments are arranged in generally chevron shapes, around the drum. During rotation of the conveyor roller the abutments cause any debris or contaminants between the roller and the conveyor media to be guided out of the conveyor system. Also disclosed is a method of cleaning a conveyor roller.

Abstract: An office chair has multiple moving parts and controls for the different moving parts of the chair. The chair includes a control directory which is in a more visibly accessible position than the controls to a person sitting in the chair. The chair further includes control switches which when activated provide a guide to distinguish which particular set of instructions on the directory pertains to each of the controls. The control switches are activated without producing operation of the actual controls.

Abstract: A multipurpose disc useful as a throw, tug, and chew toy for play involving pets and for play involving pets and people, and useful as a water and food dish for pets, the disc comprising: a circular top portion; an annular sidewall portion that merges with the circular top portion; an annular flange portion that merges with the annular sidewall portion, the annular flange and circular top portions being disposed in parallel spaced planes; a convex outer side; and, a concave inner side. The multipurpose disc has a flat top, annularly depressed trough formed in the annular flange, an internal flexible woven fabric re-enforcing member, and is composed of a resilient, waterproof, durable, and flexible material such as natural or synthetic rubber.

Abstract: An electrical high tension test device having first and second contacts connectable to a high tension circuit, a first electrode connected to one contact; a second electrode connected to the second contact, the first and second electrodes being spaced apart from one another by an air gap defining a predetermined resistance preset to a resistance corresponding to the high tension voltage in the high tension circuit to be tested, and, a signal device responsive to high tension discharge across said air gap to generate a signal such that when a predetermined high tension voltage is applied to the first and second contacts, a spark will jump the gap between them and in this way activating the signal device, and when a high tension voltage is applied which is less than the predetermined voltage no spark will jump the gap, and no signal will be generated.