2228931

Information

• Patent Grant
• 2228931

• References
• Source

• Patent Number

  2,228,931

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1941
  83 years ago

• CPC

  • G11B3/08 - Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
  • Y10T74/1552 - Spring or weight return
  • Y10T74/20012 - Multiple controlled elements
  • Y10T477/357 - Cam actuated brake

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 074 - Machine element or mechanism
  • 476 - Friction gear transmission systems or components
  • 477 - Interrelated power delivery controls, including engine control