1682815

Information

• Patent Grant
• 1682815

• References
• Source

• Patent Number

  1,682,815

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1928
  96 years ago

• CPC

  • B63B1/38 - using air bubbles or air layers gas filled volumes
  • B63H5/07 - of propellers
  • B63H25/10 - with mechanical transmission
  • B63H2025/063 - Arrangements of rudders forward of the propeller position
  • B63H2025/387 - comprising two or more rigidly interconnected mutually spaced blades pivotable about a common rudder shaft
  • Y02T70/122 - Air lubrication, air cavity systems
  • Y10T74/20402 - Flexible transmitter [e.g., Bowden cable]

• US Classifications

  • 440 - Marine propulsion
  • 074 - Machine element or mechanism
  • 114 - Ships