JPH0312872Y2 - - Google Patents

Info

Publication number

JPH0312872Y2

JPH0312872Y2 JP12059486U JP12059486U JPH0312872Y2 JP H0312872 Y2 JPH0312872 Y2 JP H0312872Y2 JP 12059486 U JP12059486 U JP 12059486U JP 12059486 U JP12059486 U JP 12059486U JP H0312872 Y2 JPH0312872 Y2 JP H0312872Y2

Authority

JP

Japan

Prior art keywords

pipe

sewage

annular groove

inflow pipe

drainage basin

Prior art date

1986-08-05

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 239000010865 sewage Substances 0.000 claims description 19
• 230000001105 regulatory effect Effects 0.000 claims 1
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
• 239000011083 cement mortar Substances 0.000 description 2
• 239000000428 dust Substances 0.000 description 2
• 238000007689 inspection Methods 0.000 description 2
• 238000009434 installation Methods 0.000 description 2
• 238000005452 bending Methods 0.000 description 1
• 238000004140 cleaning Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 239000013013 elastic material Substances 0.000 description 1
• 238000012423 maintenance Methods 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 238000012372 quality testing Methods 0.000 description 1
• 239000002344 surface layer Substances 0.000 description 1