JPS63121871U - - Google Patents

Info

Publication number

JPS63121871U

JPS63121871U JP1398887U JP1398887U JPS63121871U JP S63121871 U JPS63121871 U JP S63121871U JP 1398887 U JP1398887 U JP 1398887U JP 1398887 U JP1398887 U JP 1398887U JP S63121871 U JPS63121871 U JP S63121871U

Authority

JP

Japan

Prior art keywords

valve

reinforcing member

flange

valve box

packing

Prior art date

1987-02-02

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 230000003014 reinforcing effect Effects 0.000 claims description 8
• 238000012856 packing Methods 0.000 claims description 6
• 239000013013 elastic material Substances 0.000 claims 1
• 230000002787 reinforcement Effects 0.000 description 1