412271

Information

• Patent Grant
• 412271

• References
• Source

• Patent Number

  412,271

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1889
  135 years ago

• CPC

  • F28B9/10 - for extracting, cooling, and removing non-condensable gases
  • Y10S165/188 - Pump to remove only uncondensed vapor or air

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers
  • 159 - Concentrating evaporators