3686972

Information

• Patent Grant
• 3686972

• References
• Source

• Patent Number

  3,686,972

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1972
  52 years ago

• CPC

  • F02B75/32 - Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
  • F01B9/02 - with crankshaft
  • F16H21/30 - with members having rolling contact
  • Y10T74/19555 - Varying speed ratio
  • Y10T74/2181 - Variable

• US Classifications

  • 074 - Machine element or mechanism
  • 123 - Internal-combustion engines