1692639

Information

• Patent Grant
• 1692639

• References
• Source

• Patent Number

  1,692,639

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1928
  96 years ago

• CPC

  • F04C2/3564 - the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
  • F04C15/0065 - for eccentric movement

• US Classifications

  • 418 - Rotary expansible chamber devices