What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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363-131 121-55A 14-.5
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Class Number: 494
Class Title: IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS
Subclass Subclass
Number Title
1 WITH CONDITION RESPONSIVE MEANS
2 .For controlling outlet valve
3 ..In response to location of inner boundary of heavy component
4 ..In response to centrifugal force
5 .For controlling inlet valve
6 ..In response to level of liquid-type material in bowl or in
reservoir for supplying bowl
7 .For controlling drive of (a) bowl or (b) driven means within
bowl
8 ..In response to load imposed upon driven means
9 ..In response to speed of bowl or rotarily-driven means
therewithin
10 WITH MEANS FOR INDICATING, INSPECTING, MEASURING, SIGNALING OR
TESTING
11 WITH CYCLIC OR TIME CONTROL MEANS
12 INCLUDING MEANS OR STRUCTURE FOR PROMOTING SAFETY
13 WITH MEANS FOR EXCHANGING HEAT
14 .Comprising or including means for cooling
15 WITH MEANS FOR LUBRICATING
16 INCLUDING PLURALITY OF MINIATURE BOWLS (E.G., TEST TUBES)
DISTRUBUTED ABOUT ROTATABLE CARRIER AND READILY REMOVABLE
THEREFROM
17 .And means for introducing either material or auxiliary fluid
into bowls
18 ..Including conduit of flexible umbilical cable type
19 .And means for rotating each bowl about own axis
20 .Having bowls, or holders therefor, pivotaby attached to carrier
for tilting during rotation of carrier
21 .Comprising flexible bowls embraced by pockets provided therefor
in carrier
22 INCLUDING INTRODUCTION OF DIFFERING-WEIGHT FLUIDS (E.G.,
LIQUIDS) FOR COUNTERCURRENT FLOW
23 WITH MEANS FOR FURNISHING AUXILIARY FLUID TO MATERIAL OR
APPARATUS
24 .Energy of fluid utilized for driving bowl
25 .Gas other than air
26 .Air at atmospheric, or greater, pressure
27 .Liquid
28 ..Moving radially inwardly toward axis of rotation of bowl
29 ..Furnished at plural locations
30 ..Including one or more valves in incoming path
31 INCLUDING PLURALITY OF SEPARATE AND DISTINCT BOWLS
32 .And means external of bowls for conducting material
therebetween
33 .Having bowls equally spaced from a central axis of rotation for
orbiting thereabout
34 .Having bowls spaced along common axis of rotation
35 BOWL AND MEANS EXTERNAL THEREOF FOR RECIRCULATING MATERIAL
36 WITH MEANS FOR FILTERING
37 PROCESS
38 INCLUDING SEALING MEANS
39 .For protecting evacuated, bowl-enclosing housing againstt
gaseous infiltration
40 .Comprising seal, or element cooperating therewith, movable
axially for controlling outlet on periphery of bowl
41 .For sealing between stationary and moving elements
42 INCLUDING DRIVEN MEANS AT LEAST PARTIALLY EXTERNAL OF BOWL FOR
MOVING MATERIAL THERETO OR THEREFROM
43 ROTATABLE BOWL
44 .Comprising plurality of bowls partly or wholly within one
another
45 .Including flexible, removable lining therein
46 .Including bearing means adapted to enable bowl to establish
dynamic axis of rotation
47 .Including means for imparting other movement to bowl in whole
or in part before, during or after its axial rotation
48 ..Axial movement of one portion of bowl wall relative to another
(e.g., for discharging)
49 .Driven by energy of material supplied
50 .Including driven material-moving means therein
51 ..Plural driven means
52 ..Rotatably driven coaxially with bowl, but differing as to
direction or speed
53 ...Including element having helical blade
54 ....Modified blade
55 ...Including plurality of discrete pushing or scraping elements
moving proximate to material collecting surface of bowl
56 .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 ..Element associated with pickup of material and adjustable for
varying quality of flow
58 ..Static scraper or the like for engaging material in moving
bowl
59 ...And structure to receive or guide material loosened
60 .Including housing for bowl
61 ..And means for reducing, and maintaining, pressure in housing
below that of environment
62 ..Serving to support bowl from above
63 ..For vertically-oriented bowl, and having plural receivers at
top for separated components
64 .Having structural provision for facilitating cleaning (e.g.,
quick take apart)
65 .Vertically-oriented, and including structural provision for
bottom entry of material
66 .Including structure located within bowl and defining
axially-extending, helical flow path
67 .Including structure located within vertically-oriented bowl and
extending outwardly from central region (e.g., axis) thereof
68 ..Comprising plurality of elements, each concentrically
encircling axis of bowl and spaced therealong
69 ...Each extending generally normally to region, and having
surface displaying three-dimensional configuration
70 ...Each extending away from region with significant downward, as
well as significant outward, component (e.g., nested cones)
71 ....And the plurality divided vertically into two or more,
physically separate or functionally distinct groups
72 ....And extending therebeyond generally downwardlyy
73 ....And one or more elements having surface displaying
three-dimensional configuration
74 ..Comprising plurality of axially-extending, plate-like
elements, each having its inner edge lying along central
region
75 ...And each extending outwardly in curve of changing or constant
radius
76 .Including plurality of axially-extending, tubular elements
located within vertically-oriented bowl
77 ..Each element concentric with axis of bowl
78 ...And at least one element having other-than-circular
periphery
79 .Including plurality of axially-extending, plate-like elements
located within vertically-oriented bowl
80 .Including plurality of shelf-like elements located within
vertically oriented bowl and extending generally horizontally
inwardly from wall thereof
81 .Material of bowl wall
82 INCLUDING VIBRATION DAMPING MEANS
83 INCLUDING BEARING STRUCTURE
84 INCLUDING SPECIFIC DEVICE OR STRUCTURE FOR DRIVING OR
CONTROLLING BOWL
85 MISCELLANEOUS
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* CROSS-REFERENCE ART COLLECTIONS
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900 INVOLVING MIXTURE CONTAINING ONE OR MORE GASES
901 INVOLVING MIXTURE CONTAINING OIL
902 INVOLVING THE USE OF MERCURY