JPH0465888U - - Google Patents

Info

Publication number

JPH0465888U

JPH0465888U JP10829890U JP10829890U JPH0465888U JP H0465888 U JPH0465888 U JP H0465888U JP 10829890 U JP10829890 U JP 10829890U JP 10829890 U JP10829890 U JP 10829890U JP H0465888 U JPH0465888 U JP H0465888U

Authority

JP

Japan

Prior art keywords

rod

additive

check valve

discharge port

sliding hole

Prior art date

1990-10-16

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

• 239000000654 additive Substances 0.000 claims description 11
• 230000000996 additive effect Effects 0.000 claims description 11
• 239000000463 material Substances 0.000 claims description 6
• 238000012856 packing Methods 0.000 claims 1
• 238000005553 drilling Methods 0.000 description 1