2290137

Information

• Patent Grant
• 2290137

• References
• Source

• Patent Number

  2,290,137

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1942
  82 years ago

• CPC

  • F04C18/1075 - the inner and outer member having a different number of threads and one of the two being made of elastic material
  • F25B1/04 - with compressor of rotary type

• US Classifications

  • 418 - Rotary expansible chamber devices