Class 290: PRIME-MOVER DYNAMO PLANTS ( Manual of U.S. Patent Classification )

U.S. PATENT AND TRADEMARK OFFICE
Information Products Division

[Manual of Classification, Class Listing]

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

Class
290
PRIME-MOVER DYNAMO PLANTS

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Subclass		Title
ClassTitle		===> PRIME-MOVER DYNAMO PLANTS

1R		MISCELLANEOUS
1A		. Unitary plant
1B		. Air-cooled generator
1C		. Drive gearing
1D		. Chain drive
1E		. Spring motor
2		HEATING PLANTS
3		TRAIN
4R		PLURAL PRIME MOVER
4A		. Tie with another generator
4B		. Induction generator
4C		. Plural with combined drive
4D		. Plural prime movers with fluid interconnection
5		ALTERNATING CURRENT, ROTARY FIELD AND ARMATURE
6		MULTIPLE-ARMATURE DYNAMO
7		ELECTRIC CONTROL
8		. Excitation dynamo
		. Traction
9		. . Electric traction motor
10		. . . With starting and generating dynamo
11		. . . . With generator
12		. . . . Rotary field and armature
13		. . . . Ignition
14		. . . With generator
15		. . . . Rotary field and armature
16		. . . . Battery
17		. . . . Engine control
18		. . . As starter
19		. . . . As generator
20		. . . . . Rotary field and armature
21		. . . . Engine control
22		. . Starting and generating dynamo
23		. . . Rotary field and armature
24		. . . . Engine control
25		. . . Engine control
26		. . . . Ignition
27		. . Electric-starting motor with generator
28		. . Electric-starting motor
29		. . Rotary field and armature
30R		. Demand starters
30A		. . Standby source
30B		. . Standby service
31		. Starting and generating dynamo
32		. . With generator
33		. . . Ignition
34		. . Engine control
35		. . . Ignition
36R		. Electric-starting motor with generator
37R		. . Ignition
37A		. . . Stop cranking responsive to generator output
36A		. . Automatic starters including centrifugally operated contactors
38R		. Electric-starting motor
38A		. . Axially movable armatures
38B		. . Inertia starters
38C		. . Miscellaneous collection of automatic engine starters
38D		. . Stop cranking responsive to manifold conditions
38E		. . Automatic starter including pedal control
39		. Rotary field and armature
40R		. Engine control
41		. . Ignition
40A		. . Control in response to engine speed
40B		. . Control in response to generator line conditions
40C		. . Control in response to generator and prime mover conditions
40D		. . Control in response to a time standard
40E		. . Circuit resonant at given frequency
40F		. . Control in response to D. C. generator output
42		. Tide and wave motors
43		. Fluid-current motors
44		. . Wind
45		TRACTION
46		STARTING AND GENERATING DYNAMO
47		ELECTRIC-STARTING MOTOR WITH GENERATOR
48		ELECTRIC-STARTING MOTOR
49		ROTARY FIELD AND ARMATURE
50		BATTERY
51		ENGINE CONTROL
52		TURBOGENERATORS
53		TIDE AND WAVE MOTORS
54		FLUID-CURRENT MOTORS
55		. Wind

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Last Modified: 6 October 2000

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

Class 290 PRIME-MOVER DYNAMO PLANTS

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

Class
290
PRIME-MOVER DYNAMO PLANTS