3854846

Information

• Patent Grant
• 3854846

• References
• Source

• Patent Number

  3,854,846

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • E21B37/06 - using chemical means for preventing, limiting or eliminating the deposition of paraffins or like substances
  • E21B47/0008 - Survey of walking-beam pump systems
  • F04B49/02 - Stopping, starting, unloading or idling control
  • F04B2201/02071 - Total number of pumping strokes
  • F04B2205/13 - Pressure pulsations after the pump
  • F04B2205/16 - Opening or closing of a valve in a circuit

• US Classifications

  • 417 - Pumps