Class 494: IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS ( Manual of U.S. Patent Classification )

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Manual of U.S. Patent Classification
as of June 30, 2000


Class
494
IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS


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Subclass Title
ClassTitle ===> IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS
1[Patents]WITH CONDITION RESPONSIVE MEANS
2[Patents] . For controlling outlet valve
3[Patents] . . In response to location of inner boundary of heavy component
4[Patents] . . In response to centrifugal force
5[Patents] . For controlling inlet valve
6[Patents] . . In response to level of liquid-type material in bowl or in reservoir for supplying bowl
7[Patents] . For controlling drive of (a) bowl or (b) driven means within bowl
8[Patents] . . In response to load imposed upon driven means
9[Patents] . . In response to speed of bowl or rotarily-driven means therewithin
10[Patents]WITH MEANS FOR INDICATING, INSPECTING, MEASURING, SIGNALING OR TESTING
11[Patents]WITH CYCLIC OR TIME CONTROL MEANS
12[Patents]INCLUDING MEANS OR STRUCTURE FOR PROMOTING SAFETY
13[Patents]WITH MEANS FOR EXCHANGING HEAT
14[Patents] . Comprising or including means for cooling
15[Patents]WITH MEANS FOR LUBRICATING
16[Patents]INCLUDING PLURALITY OF MINIATURE BOWLS (E.G., TEST TUBES) DISTRUBUTED ABOUT ROTATABLE CARRIER AND READILY REMOVABLE THEREFROM
17[Patents] . And means for introducing either material or auxiliary fluid into bowls
18[Patents] . . Including conduit of flexible umbilical cable type
19[Patents] . And means for rotating each bowl about own axis
20[Patents] . Having bowls, or holders therefor, pivotaby attached to carrier for tilting during rotation of carrier
21[Patents] . Comprising flexible bowls embraced by pockets provided therefor in carrier
22[Patents]INCLUDING INTRODUCTION OF DIFFERING-WEIGHT FLUIDS (E.G., LIQUIDS) FOR COUNTERCURRENT FLOW
23[Patents]WITH MEANS FOR FURNISHING AUXILIARY FLUID TO MATERIAL OR APPARATUS
24[Patents] . Energy of fluid utilized for driving bowl
25[Patents] . Gas other than air
26[Patents] . Air at atmospheric, or greater, pressure
27[Patents] . Liquid
28[Patents] . . Moving radially inwardly toward axis of rotation of bowl
29[Patents] . . Furnished at plural locations
30[Patents] . . Including one or more valves in incoming path
31[Patents]INCLUDING PLURALITY OF SEPARATE AND DISTINCT BOWLS
32[Patents] . And means external of bowls for conducting material therebetween
33[Patents] . Having bowls equally spaced from a central axis of rotation for orbiting thereabout
34[Patents] . Having bowls spaced along common axis of rotation
35[Patents]BOWL AND MEANS EXTERNAL THEREOF FOR RECIRCULATING MATERIAL
36[Patents]WITH MEANS FOR FILTERING
37[Patents]PROCESS
38[Patents]INCLUDING SEALING MEANS
39[Patents] . For protecting evacuated, bowl-enclosing housing against gaseous infiltration
40[Patents] . Comprising seal, or element cooperating therewith, movable axially for controlling outlet on periphery of bowl
41[Patents] . For sealing between stationary and moving elements
42[Patents]INCLUDING DRIVEN MEANS AT LEAST PARTIALLY EXTERNAL OF BOWL FOR MOVING MATERIAL THERETO OR THEREFROM
43[Patents]ROTATABLE BOWL
44[Patents] . Comprising plurality of bowls partly or wholly within one another
45[Patents] . Including flexible, removable lining therein
46[Patents] . Including bearing means adapted to enable bowl to establish dynamic axis of rotation
47[Patents] . Including means for imparting other movement to bowl in whole or in part before, during or after its axial rotation
48[Patents] . . Axial movement of one portion of bowl wall relative to another (e.g., for discharging)
49[Patents] . Driven by energy of material supplied
50[Patents] . Including driven material-moving means therein
51[Patents] . . Plural driven means
52[Patents] . . Rotatably driven coaxially with bowl, but differing as to direction or speed
53[Patents] . . . Including element having helical blade
54[Patents] . . . . Modified blade
55[Patents] . . . Including plurality of discrete pushing or scraping elements moving proximate to material collecting surface of bowl
56[Patents] . Including discharge-related structure in nature of (a) outlet having device for controlling quantity of flow, (b) element associated with pickup of material and adjustable for varying quality of flow, or (c) static scraper or the like for engaging material in moving bowl
57[Patents] . . Element associated with pickup of material and adjustable for varying quality of flow
58[Patents] . . Static scraper or the like for engaging material in moving bowl
59[Patents] . . . And structure to receive or guide material loosened
60[Patents] . Including housing for bowl
61[Patents] . . And means for reducing, and maintaining, pressure in housing below that of environment
62[Patents] . . Serving to support bowl from above
63[Patents] . . For vertically-oriented bowl, and having plural receivers at top for separated components
64[Patents] . Having structural provision for facilitating cleaning (e.g., quick take apart)
65[Patents] . Vertically-oriented, and including structural provision for bottom entry of material
66[Patents] . Including structure located within bowl and defining axially-extending, helical flow path
67[Patents] . Including structure located within vertically-oriented bowl and extending outwardly from central region (e.g., axis) thereof
68[Patents] . . Comprising plurality of elements, each concentrically encircling axis of bowl and spaced therealong
69[Patents] . . . Each extending generally normally to region, and having surface displaying three-dimensional configuration
70[Patents] . . . Each extending away from region with significant downward, as well as significant outward, component (e.g., nested cones)
71[Patents] . . . . And the plurality divided vertically into two or more, physically separate or functionally distinct groups
72[Patents] . . . . And extending therebeyond generally downwardly
73[Patents] . . . . And one or more elements having surface displaying three-dimensional configuration
74[Patents] . . Comprising plurality of axially-extending, plate-like elements, each having its inner edge lying along central region
75[Patents] . . . And each extending outwardly in curve of changing or constant radius
76[Patents] . Including plurality of axially-extending, tubular elements located within vertically-oriented bowl
77[Patents] . . Each element concentric with axis of bowl
78[Patents] . . . And at least one element having other-than-circular periphery
79[Patents] . Including plurality of axially-extending, plate-like elements located within vertically-oriented bowl
80[Patents] . Including plurality of shelf-like elements located within vertically oriented bowl and extending generally horizontally inwardly from wall thereof
81[Patents] . Material of bowl wall
82[Patents]INCLUDING VIBRATION DAMPING MEANS
83[Patents]INCLUDING BEARING STRUCTURE
84[Patents]INCLUDING SPECIFIC DEVICE OR STRUCTURE FOR DRIVING OR CONTROLLING BOWL
85[Patents]MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900[Patents]INVOLVING MIXTURE CONTAINING ONE OR MORE GASES
901[Patents]INVOLVING MIXTURE CONTAINING OIL
902[Patents]INVOLVING THE USE OF MERCURY


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Last Modified: 6 October 2000