Abstract: The present invention relates to a constructing method for delaying corrosion of radioactive waste disposal container in concrete disposal vault and, more specifically, to a constructing method for delaying corrosion of radioactive waste disposal container in concrete disposal vault in which backfill, placed to the top, combines pH control capsules, thereby dissolving the pH control capsules in rainwater, and a pH controller, inside, is discharged, thereby preventing decrease of pH of the backfill below 8.5 and delaying corrosion in the disposal containers, upon filling in backfill after placing radioactive waste disposal containers in the concrete vault.

Abstract: The present invention relates to a system for monitoring electrical properties of materials of deep bedrock samples for estimating nuclide movement in disposal site of spent fuel and, more specifically, to a system for monitoring electrical properties of materials of deep bedrock samples for estimating nuclide movement in disposal site of spent fuel which installs a tube wherein ring-shaped potential electrode is formed in multi layers inside a column; adheres the potential electrode to deep bedrock samples by pressing on the external side of the tube while filling the deep bedrock samples inside of the tube; and reproduces real condition of deep bedrock and monitors precisely by measuring electrical resistivity for each location of the deep bedrock samples while injecting nuclide and underground water to the inside the tube.

Abstract: The invention relates a dispenser comprises: an outer container (300), an internal vessel (200) for storing contents and inserted inside the outer container (300), and a pumping part (100) combined in an upper part of the internal vessel (200) and for discharging the contents in the internal vessel (200); the internal vessel is composed with a material capable of the contraction and expansion; a plurality of wrinkles (210) are formed through a blow injection manner; and the connecting rod (220) for coupling with the pumping part (100), an elastic steel band (420) formed in the outer circumference of the internal vessel (200), and a plurality of an elastic steel pieces (421) formed by cutting out a part of the steel band (420) to stand are formed onto the upper part of the internal vessel, respectively; the elastic steel piece (421) is gradually risen as the contents within the internal vessel (200) is gradually discharged, as maintaining a state where an end part reaches in contact with each other with an in

Abstract: Disclosed herein is an illuminated signboard using a plane light source in which edges of two light guide plates are cut in an inclined form, an opaque plate having high surface reflectivity is inserted between the two light guide plates to optically block the two light guide plates from each other, and the light guide plates and the opaque plate are combined to form a second lighting part. U-shaped frames including LEDs are connected to construct a frame housing and the second lighting part is combined with the frame housing. Light emitted from the LEDs and transmitted in the light guide plates is dispersed by a dispersing mechanism formed on the backsides of the light guide plates using paint, print ink or engraving to transmit the light guide plates and graphics or natural color pictures formed on transparent plates attached to the outer sides of the light guide plates so as to illuminate the graphics or the natural color pictures.

Abstract: The present invention relates to an edge lighted display system having multiple display faces. The edge lighted display system having multiple display faces includes a plurality of light guide plates respectively having both sides bent at a predetermined angle, a cylindrical or polyhedral pillar-shaped three-dimensional structure formed by bent distal ends of the light guide plates, LED light source assemblies linearly arranged at the ends of the junctions of the light guide plates, so that light energy from light sources can be incident on two sheets of the light guide plates simultaneously, covering plates securely mounted on top and bottom surfaces of a three-dimensional structure formed by interconnecting the plurality of light guide plates, a thin opaque or black board disposed on an inner wall surface of the light guide plate, and thin transparent graphic elements adhered on an outer wall surface of the light guide plate.

Abstract: The subject lighting system (1) generally comprises a fixture body assembly (10); a face assembly (5) coupled to the fixture body assembly (10) to extend at least partially over a channel (15) defined thereby; a flexible reflective member (20) disposed in the channel (15) formed by the fixture body assembly (10) to define a reflective surface; and, a light source (60) disposed adjacent a base portion of the reflective surface. The fixture body assembly (10) includes a longitudinally extended inside base surface (14) and at least a pair of laterally opposed inner side surfaces (13) transversely oriented relative to the inside base surface (14), such that the inner side and inside base surfaces define the longitudinally extended channel (15). The face assembly (5) extends at least partially over the channel (15), and includes a light transmissive portion (72).

Abstract: The subject lighting system (1) generally comprises a fixture body assembly (10); a face assembly (5) coupled to the fixture body assembly (10) to extend at least partially over a channel (15) defined thereby; a flexible reflective member (20) disposed in the channel (15) formed by the fixture body assembly (10) to define a reflective surface; and, a light source (60) disposed adjacent a base portion of the reflective surface. The fixture body assembly (10) includes a longitudinally extended inside base surface (14) and at least a pair of laterally opposed inner side surfaces (13) transversely oriented relative to the inside base surface (14), such that the inner side and inside base surfaces define the longitudinally extended channel (15). The face assembly (5) extends at least partially over the channel (15), and includes a light transmissive portion (72).

Abstract: A lighting system (1) is provided which generally comprises a fixture body assembly (10); a face assembly (5) coupled to the fixture body assembly (10) to extend at least partially over a channel (15) defined thereby; a flexible reflective member (20) disposed in the channel (15) formed by the fixture body assembly (10) to define a reflective surface; and, a light source (60) disposed adjacent a base portion of the reflective surface. The fixture body assembly (10) includes a longitudinally extended inside base surface (14) and at least a pair of laterally opposed inner side surfaces (13) transversely oriented relative to the inside base surface (14), such that the inner side and inside base surfaces define the longitudinally extended channel (15). The face assembly (5) extends at least partially over the channel (15), and includes a light transmissive portion (72).

Abstract: An improved illuminated sign comprising a thermoformed plastic housing having at least one linear semicircular inner surface lined by highly reflective plastic sheet material and clear plastic sheet having a bit smaller dimension of cut off opening area whereby a sign face is covered to pass light energy emitted from light source positionally enclosed in the plastic housing. The clear plastic panel is extended to form any geometric or irregular free edge line which cut face is bevelled to create a geometric or an irregular illuminated edge line that can be observed as a boarder line surrounding the sign graphics from the observers from the front side of the sign. An extended length of the clear plastic panel may be used as a wet erasable writing surface by using water base fluorescent markers which is useful to show a strong sign together with hand written messages or graphics surrounded by a illuminated boarder line on one fixture.

Abstract: A lighting system (10) is provided to allow a plurality of overlapping virtual images (16-16"') to be viewed by an external observer. Lighting mechanisms (18) are positionally located adjacent reflectors (20) to form virtual images (16-16"') and provide a wide solid band of lighting to be viewed by the observer. Housings (32 and 32') enclose the combination of the light mechanism (18) and reflectors (20) and a sign member (12) is formed on a frontal wall for viewing of particular indicia (14) formed on or through sign member (12). Reflector (20) may be bonded to a reflector support (38) fixedly mounted within housing (32). A color transmissive housing may be mounted over light mechanism (18) to provide a particular color to be passed external to housings (32 and 32'). In this manner, the external observer is provided with a substantially constant illumination density for light emission from light mechanism (18) passing through a sign member (12).

Abstract: A colorful illuminated sign construction utilizing plurality of fluorescent lamp covered by colored transparent plastic thin wall tubing which is tightly enclosed by a diffusion panel sleeve so that neighboring colors can be melted each other on the diffusing panel, and it forms a colorful stipes to attract attention. The fluorescent lamps and color sleeves are held by openings installed on side frame posts at the both end of fluorescent lamp whereby heat generated at the both end of fluorescent lamp can escape to surrounded air, and the side frame posts are connected to horizontal conduit and connecting bar which forms a structural frame of sign. Side frame post covers are protecting electrical wiring therein.

Abstract: An information reel system (10) is provided for displaying information on sheet material (32) contained therein. The information reel system (10) includes a substantially closed and transparent housing (24) within which there is mounted an upper and lower reel mechanism (42 and 44). The upper and lower reel mechanisms (42 and 44) have mounted thereon the sheet material (32) containing indicia information (12 and 12'). Rotational activation of upper and lower reel mechanisms (42 and 44) allows the viewer to see corresponding indicia information (12 and 12') in different sections of transparent housing (24). Upper and lower reel mechanisms (42 and 44) are coupled each to the other by means of coupling mechanisms (54 and 56) mounted within transparent housing (24) on opposing longitudinal ends thereof.