US Patent Class 494
IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS-- Main Headings




Electronic
File
Wrappers


Electronic
Patent
Documents


Paper
Patent
Documents

Current as of: June, 1999
Click for All Classes

Internet Version by PATENTEC © 1999       Terms of Use



Products
and
Services


CLASS NOTES
1  DF  WITH CONDITION RESPONSIVE MEANS {3}
10  DF  WITH MEANS FOR INDICATING, INSPECTING, MEASURING, SIGNALING OR TESTING
11  DF  WITH CYCLIC OR TIME CONTROL MEANS
12  DF  INCLUDING MEANS OR STRUCTURE FOR PROMOTING SAFETY
13  DF  WITH MEANS FOR EXCHANGING HEAT {1}
15  DF  WITH MEANS FOR LUBRICATING
16  DF  INCLUDING PLURALITY OF MINIATURE BOWLS (E.G., TEST TUBES) DISTRUBUTED ABOUT ROTATABLE CARRIER AND READILY REMOVABLE THEREFROM {4}
22  DF  INCLUDING INTRODUCTION OF DIFFERING-WEIGHT FLUIDS (E.G., LIQUIDS) FOR COUNTERCURRENT FLOW
23  DF  WITH MEANS FOR FURNISHING AUXILIARY FLUID TO MATERIAL OR APPARATUS {4}
31  DF  INCLUDING PLURALITY OF SEPARATE AND DISTINCT BOWLS {3}
35  DF  BOWL AND MEANS EXTERNAL THEREOF FOR RECIRCULATING MATERIAL
36  DF  WITH MEANS FOR FILTERING
37  DF  PROCESS
38  DF  INCLUDING SEALING MEANS {3}
42  DF  INCLUDING DRIVEN MEANS AT LEAST PARTIALLY EXTERNAL OF BOWL FOR MOVING MATERIAL THERETO OR THEREFROM
43  DF  ROTATABLE BOWL {16}
82  DF  INCLUDING VIBRATION DAMPING MEANS
83  DF  INCLUDING BEARING STRUCTURE
84  DF  INCLUDING SPECIFIC DEVICE OR STRUCTURE FOR DRIVING OR CONTROLLING BOWL
85  DF  MISCELLANEOUS
******************************
CROSS-REFERENCE ART COLLECTIONS
******************************
900  DF  INVOLVING MIXTURE CONTAINING ONE OR MORE GASES
901  DF  INVOLVING MIXTURE CONTAINING OIL
902  DF  INVOLVING THE USE OF MERCURY