3796401

Information

• Patent Grant
• 3796401

• References
• Source

• Patent Number

  3,796,401

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1974
  51 years ago

• CPC

  • F15B17/00 - Combinations of telemotor and servomotor systems
  • E21B7/022 - Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
  • E21B7/025 - Rock drills
  • E21C3/02 - Machines in which the tool is connected to an impulse member
  • F15B9/10 - in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage

• US Classifications

  • 248 - Supports
  • 091 - Motors: expansible chamber type
  • 173 - Tool driving or impacting