Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 290
Name: Prime-mover dynamo plants >
Description: This class includes patents for the production and transmission of electric power and does not include any specific use to which the power is put. (Note. The mere reference to or the inclusion in a claim of an energy-consuming device, broadly stated--as, for example, a "lamp", "heater", or "tool"--is not sufficient to exclude the patent from this class). It includes the following groups when the invention includes some motor other than a dynamo electric machine in combination with a dynamo electric machine:


Class Number Class Name No. of Patents
290/5

Alternating current, rotary field and armature

10
290/50

Battery

46
290/7

Electric control

37
290/30R

Demand starters

16
290/30B

Standby service

2
290/30A

Standby source

9
290/36R

Electric-starting motor with generator

57
290/36A

Automatic starters including centrifugally operated contactors

3
290/37R

Ignition

38
290/37A

Stop cranking responsive to generator output

22
290/38R

Electric-starting motor

337
290/38E

Automatic starter including pedal control

22
290/38A

Axially movable armatures

38
290/38B

Inertia starters

22
290/38C

Miscellaneous collection of automatic engine starters

75
290/38D

Stop cranking responsive to manifold conditions

14
290/40R

Engine control

297
290/40E

Circuit resonant at given frequency

13
290/40D

Control in response to a time standard

37
290/40F

Control in response to d. c. generator output

55
290/40A

Control in response to engine speed

200
290/40C

Control in response to generator and prime mover conditions

456
290/40B

Control in response to generator line conditions

174
290/41

Ignition

25
290/8

Excitation dynamo

11
290/43

Fluid-current motors

353
290/44

Wind

691
290/39

Rotary field and armature

7
290/31

Starting and generating dynamo

115
290/34

Engine control

27
290/35

Ignition

8
290/32

With generator

24
290/33

Ignition

5
290/42

Tide and wave motors

267
 

Traction

 
290/9

Electric traction motor

17
290/18

As starter

4
290/19

As generator

4
290/20

Rotary field and armature

4
290/21

Engine control

2
290/14

With generator

39
290/16

Battery

28
290/17

Engine control

42
290/15

Rotary field and armature

3
290/10

With starting and generating dynamo

17
290/13

Ignition

5
290/12

Rotary field and armature

1
290/11

With generator

5
290/27

Electric-starting motor with generator

20
290/28

Electric-starting motor

12
290/29

Rotary field and armature

7
290/22

Starting and generating dynamo

24
290/25

Engine control

2
290/26

Ignition

2
290/23

Rotary field and armature

4
290/24

Engine control

5
290/47

Electric-starting motor with generator

23
290/48

Electric-starting motor

165
290/51

Engine control

50
290/54

Fluid-current motors

544
290/55

Wind

815
290/2

Heating plants

162
290/1R

Miscellaneous

587
290/1B

Air-cooled generator

68
290/1D

Chain drive

8
290/1C

Drive gearing

66
290/1E

Spring motor

33
290/1A

Unitary plant

298
290/6

Multiple-armature dynamo

27
290/4R

Plural prime mover

135
290/4B

Induction generator

5
290/4D

Plural prime movers with fluid interconnection

23
290/4C

Plural with combined drive

65
290/4A

Tie with another generator

28
290/49

Rotary field and armature

13
290/46

Starting and generating dynamo

123
290/53

Tide and wave motors

440
290/45

Traction

99
290/3

Train

27
290/52

Turbogenerators

506
 
 
  Recently Added Patents
Ignition circuit
Focus servo control method in optical disc device
Body spray
Process for producing low sodium sea salt from seawater
Method of recording and/or reproducing pointing information
Light emitting diode driver circuit with shunt switch
Plastic headrest frame
  Randomly Featured Patents
Process for fabricating semiconductor device having semiconductor layers epitaxially grown from active areas without short-circuit on field insulating layer
Fan with spiral supercharging device
Fractional delay digital filter
Hybrids semiconductor circuit
FMX identification signal detection apparatus
Sulfuric acid thermoelectrochemical system and method
Network management tool for causing network equipment to display information of a network relevant to the network equipment
Transformable toy vehicle
Delivery point sequencing mail sorting system with flat mail capability
Upgradeable passive optical network