2974649

Information

• Patent Grant
• 2974649

• References
• Source

• Patent Number

  2,974,649

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1961
  63 years ago

• CPC

  • C03C3/06 - with more than 90% silica by weight
  • C03C3/087 - containing calcium oxide
  • C03C3/093 - containing zinc or zirconium
  • F22B17/12 - the sectional headers being in vertical or substantially vertical arrangement
  • F22B21/00 - Water-tube boilers of vertical or steeply-inclined type
  • F22B21/34 - built-up from water tubes grouped in panel form surrounding the combustion chamber
  • F22B37/00 - Component parts or details of steam boilers
  • F22B37/28 - involving reversal of direction of flow
  • F22D1/02 - with water tubes arranged in the boiler furnace, fire tubes, or flue ways
  • F28D7/0041 - the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form
  • H01J61/302 - characterised by the material of the vessel
  • C03C2201/10 - containing boron
  • C03C2201/32 - containing aluminium
  • C03C2201/40 - containing transition metals other than rare earth metals
  • C03C2201/54 - containing beryllium, magnesium or alkaline earth metals
  • C03C2203/10 - Melting processes

• US Classifications

  • 122 - Liquid heaters and vaporizers