2775429

Information

• Patent Grant
• 2775429

• References
• Source

• Patent Number

  2,775,429

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1956
  67 years ago

• CPC

  • E21B3/06 - Adaptation of rotary draw works to drive rotary tables
  • Y10S74/02 - Miscellaneous control systems
  • Y10T477/639 - Engine controlled
  • Y10T477/6392 - Clutch controlled
  • Y10T477/6394 - Gearing controlled
  • Y10T477/897 - Control means including fluid passage

• US Classifications

  • 477 - Interrelated power delivery controls, including engine control
  • 074 - Machine element or mechanism
  • 091 - Motors: expansible chamber type
  • 254 - Implements or apparatus for applying pushing or pulling force