JPH0178795U - - Google Patents

Info

Publication number

JPH0178795U

JPH0178795U JP1987173837U JP17383787U JPH0178795U JP H0178795 U JPH0178795 U JP H0178795U JP 1987173837 U JP1987173837 U JP 1987173837U JP 17383787 U JP17383787 U JP 17383787U JP H0178795 U JPH0178795 U JP H0178795U

Authority

JP

Japan

Prior art keywords

exhaust port

double

vacuum

cylinder

double cylinder

Prior art date

1987-11-16

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

• 239000002184 metal Substances 0.000 claims description 4
• 229910052751 metal Inorganic materials 0.000 claims description 4
• RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
• 229910052802 copper Inorganic materials 0.000 claims description 2
• 239000010949 copper Substances 0.000 claims description 2
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
• 238000009413 insulation Methods 0.000 claims 1
• 229910052742 iron Inorganic materials 0.000 claims 1
• 229910001220 stainless steel Inorganic materials 0.000 claims 1
• 239000010935 stainless steel Substances 0.000 claims 1
• 238000003466 welding Methods 0.000 claims 1