JPH02135781U - - Google Patents

Info

Publication number

JPH02135781U

JPH02135781U JP4584489U JP4584489U JPH02135781U JP H02135781 U JPH02135781 U JP H02135781U JP 4584489 U JP4584489 U JP 4584489U JP 4584489 U JP4584489 U JP 4584489U JP H02135781 U JPH02135781 U JP H02135781U

Authority

JP

Japan

Prior art keywords

valve

metal plate

lid

valve stem

opening degree

Prior art date

1989-04-19

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

• 239000002184 metal Substances 0.000 claims description 14
• 229910000831 Steel Inorganic materials 0.000 claims description 2
• 239000010959 steel Substances 0.000 claims description 2
• 230000037431 insertion Effects 0.000 claims 2
• 238000003780 insertion Methods 0.000 claims 2
• 230000001174 ascending effect Effects 0.000 claims 1
• 230000000630 rising effect Effects 0.000 claims 1
• 238000007789 sealing Methods 0.000 description 1