Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 351 - 400 out of 3,191

Document Document Title
JP3178190U
To provide a water amount adjusting water port capable of changing the diameter of an opening by using a pipe having an opening so as to keep the water level of a paddy field constant. A fixed pipe 2 with a rectangular opening is attache...  
JP4997324B2  
JP2012132276A
To provide an injecting device of hydrophobic material for a culvert, capable of efficiently injecting hydrophobic material for the culvert.A device (10) comprises a lower portion (12) having a couple of side walls which are disposed fac...  
JP3176109U
To provide an unglazed porcelain pipe for underdrain drainage, which can easily cover a terminal of an underdrain drainage channel and has excellent workability and durability. An unglazed porcelain pipe 1 for drainage of an underdrain c...  
JP4950619B2  
JP2012082648A
To provide a repair structure of an existing collection drainage pipe, capable of easily and surely suppressing propagation of iron bacteria inside the existing collection drainage pipe buried underground, making clogging in the existing...  
JP4871645B2  
JP4873724B2  
JP4849579B1
To provide a mobile underdrain drainage pipe burying device capable of automatically adjusting the depth of introduction of a hydrophobic material in any soil quality. The traveling body 2, a light receiving part 51 of laser light, an ex...  
JP4817787B2
To provide a soil improving particulate matter excellent in hydrophobic property and growing property, having durability, and enabling the effective use of lime ash generated from a pressure fluidized-bed combined-cycle power generation ...  
JP2011205941A
To provide a drainage measuring box enabling a user to confirm that water for use supplied to a paddy field overflows from the drainage measuring box from a distance in spite of having an inexpensive and simple structure.The drainage mea...  
JP4792579B2  
JP4761507B2  
JP4761499B2  
JP2011163041A
To provide a water catchment structure of a closed conduit, which can easily and quickly recover from clogging and can maintain water permeability for a long period of time, and to provide a method of recovering a water catchment functio...  
JP4747114B2  
JP4751763B2  
JP4747115B2  
JP4745103B2  
JP4740829B2  
JP4722127B2
The present invention concerns a plastics infiltration block adapted for combining multiple infiltration blocks into an underground construction for infiltration or attenuation purposes. The infiltration block has an essentially rectangu...  
JP4711231B2  
JP2011106220A
To provide a drain pipe excellent in water absorption/drainage function, which can be laid simply and rapidly even at a site of unstable ground.The drain pipe is characterized in that an outer peripheral thickness cross section in a long...  
JP4677089B2  
JP4677635B2  
JP4675130B2  
JP4660804B2
A porous pipe having an excellent absorbing and draining function, a producing apparatus capable of producing a porous pipe at high speed and low cost, and a method of producing a porous pipe are provided. The porous pipe is a pipe forme...  
JP4636290B2  
JP4623473B2  
JP2011017408A
To provide a reducer for invert matching, formed of an earthenware pipe and easily joining two earthenware pipes of different bore diameters without causing inverse draft and without causing a large gap.The reducer 21 for invert matching...  
JP2011017228A
To provide a deformed pipe having no local back draft and gap at the connected part thereof to a straight pipe.This deformed pipe for pipe bottom connection in which the centers of a main pipe and a branch pipe are not aligned with each ...  
JP4621443B2  
JP4621438B2
To provide a mole drain forming device, a method and a mole drain having a structure superior in drainage performance, capable of forming the mole drain superior in drainage performance by efficiently and uniformly inputting and filling ...  
JP4615688B2  
JP3165084U
To provide a grooving machine which blocks the infiltration of mud from the upper and rear openings of the grooving means to prevent the grooving means from becoming heavy and suppresses a decrease in work efficiency such as propulsion a...  
JP4605900B2  
JP4585931B2  
JP2010255190A
To provide a siphon groundwater level control system which can efficiently control the groundwater level of the whole field by enhancing drainability when the water level is high as in the case of heavy rain.In this siphon groundwater le...  
JP2010255361A
To provide a furrow opening blade of a paddy field furrow opener, facilitating removal of sand and earth entering into the furrow opening blade, and facilitating cleaning of the tool used for the removal.The furrow opening blade 20 inclu...  
JP4579031B2  
JP3163199U
To provide a drainage irrigation piping device for preventing a large amount of earth and sand particles from flowing into a pipeline of a drainage irrigation port and causing a clogging problem. The drainage irrigation piping device is ...  
JP2010173142A
To provide a device for manufacturing culvert drainage pipe structure using industrial waste having structure suitable for molding culvert drainage pipe structure comprising a horizontal pipe path and a penetration part by effectively ut...  
JP2010154787A
To provide a structure and a method for connecting pipes which prevent damage on water-cutoff performance and/or disengagement of pipes even by vertical movement due to frost mound of the ground, land sinkage due to riding of farm workin...  
JP4498558B2  
JP4493630B2
To solve problems of a conventional device for draining ground water wherein a high water pressure is applied to a drainage well 9 since the water level in the drainage well 9 (liner plate) is suddenly raised by sliding clods in a landsl...  
JP4477883B2  
JP4442724B2  
JP2010005500A
To provide a water percolation pipe for cleaning sludge by regenerating FRP scrap or gypsum board scrap.As a measure to prevent dust production from the scrap and to mitigate alkalinity of regenerated scrap, when the scrap is crushed, a ...  
JP4392784B2  
JP4371293B2  

Matches 351 - 400 out of 3,191