SHONAN GOSEI-JUSHI SEISAKUSHO K.K. Patent applications |
Patent application number | Title | Published |
20140246108 | PIPE REHABILITATION METHOD - Segments are linked in the circumferential and pipe length directions to install a rehabilitating pipe inside an existing pipe. Each of the segments comprises an inner surface plate, side plates provided upright on both sides extending in the circumferential direction of the inner surface plate, and inner plates provided upright between the side plates. A plurality of nuts is secured to the segments along the circumferential direction thereof. A linking member that can be screwed into the nut is prepared and inserted into a segment. The segment into which the linking member is inserted and the segment to which the nut is secured are aligned into contact with each other, and the linking member is screwed into the nut to fasten both the segments together and link them in the pipe length direction. A temporary lock is mounted on the segment to prevent the inserted linking member from falling out from the segment. | 09-04-2014 |
20140097612 | REHABILITATION PIPE AND PIPE REHABILITATION METHOD - A plurality of segments is provided which comprises an inner surface plate, and side plates and end plates provided upright on a peripheral edge of the inner surface plate. The inner surface plate, the side plates, and the end plates are formed integrally from a plastic material. The segments are linked in a circumferential direction with a diameter expander being inserted between the adjacent segments to assemble a closed ring-shaped diameter-enlarged pipe unit. The diameter-enlarged pipe units are sequentially linked in the pipe-length direction to install a segmental rehabilitation pipe inside the existing pipe. An opening is formed in the end plate and the diameter expander so that the filler material injected into a space between the existing pipe and the segmental rehabilitation pipe flows in or out through the opening. | 04-10-2014 |
20140096855 | SEGMENT FOR A REHABILITATION PIPE, AND PIPE REHABILITATION METHOD - A segment for a rehabilitation pipe comprises an inner surface plate constituting an inner circumferential surface, and side plates and end plates provided upright on a peripheral edge of the inner surface plate. The plates are formed integrally from a plastic material and the segments are linked in a circumferential direction and in a pipe-length direction to install a segmental rehabilitation pipe inside an existing pipe. The end plates are provided with an insertion hole through which a linking member is inserted when the segments are linked in the circumferential direction, and provided separately from the insertion hole with an opening for passing therethrough a filler material injected into a space between the existing pipe and the rehabilitation pipe. The side plates are provided at upper edges thereof with notches for passing therethrough a filler material injected into the space between the existing pipe and the rehabilitation pipe. | 04-10-2014 |
20130263957 | SEGMENT FOR A REHABILITATION PIPE, AND PIPE REHABILITATION METHOD - A segment for a rehabilitation pipe comprises an inner surface plate constituting an inner circumferential surface, and side plates and end plates provided upright on a peripheral edge of the inner surface plate. The plates are formed integrally from a plastic material and the segments are linked in a circumferential direction and in a pipe-length direction to install a segmental rehabilitation pipe inside an existing pipe. Each side plate is provided in the vicinity of the end plate with an opening used for a linking operation of the segments in the circumferential direction. It is possible to insert a linking member through the opening and readily link the segments in the circumferential direction. The opening formed in the side plate enables filler material injected into the space between the existing pipe and the segmental rehabilitation pipe to flow in or out through the opening. | 10-10-2013 |