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Class Information
Number: 476
Name: Friction gear transmission systems or components >
Description: This is the class for friction gear power transmission and elements thereof, such transmission being defined as an assembly of parts wherein rotary motion is transmitted from an input body to an output body by surface friction of rolling contact between parts associated with said input and output bodies.










Class Number Class Name No. of Patents
476/61

Condition responsive means to vary contact pressure

34
476/63

Ball actuator

5
476/62

Centrifugal actuator

1
476/1

Condition responsive ratio change

23
476/5

Centrifugal actuator

11
476/4

Electric or magnetic control

11
476/2

Fluid control

30
476/3

And electric or magnetic control

10
476/13

Cyclical output

2
476/11

Electric or magnetic control

25
476/9

Fluid control

35
476/10

Of toroidal transmission

159
476/15

Forward and reverse

10
476/25

Drive in forward direction by direct clutch

2
476/26

Driving and driven gears on angularly related axes

10
476/16

Flexible belt in drive train

6
476/17

Drive in one direction by direct engagement of belt pulleys

3
476/18

Variable speed in forward or reverse

7
476/24

Driving and driven gears on perpendicular axes

8
476/21

Intermediate idler between input and output gears

5
476/22

Idler between conoidal gears

4
476/23

Idler between flat discs

2
476/20

Stepped ratio change

0
476/19

With toothed gears in drive train

7
476/39

Friction gear includes idler engaging facing concave surfaces

6
476/40

Toroidal

244
476/46

Idler supported by roller bearing

103
476/45

Including spring means to bias friction surfaces into engagement

35
476/43

Including threaded means to adjust idler

7
476/44

Including toothed gearing to adjust idler

4
476/42

Plural toric cavities

159
476/41

With condition responsive means to vary contact pressure

49
476/36

Friction gear is ball

60
476/38

Variable ratio

74
476/37

With condition responsive means to vary contact pressure

41
476/64

Friction gear on shaft of movably mounted motor

17
476/67

Friction transmission or element

55
476/71

Flexible drive shaft

8
476/68

Friction gears on nonlinear angularly related axes

7
476/69

Perpendicular axes

7
476/72

Particular friction surface

57
476/73

Metallic

41
476/70

Roller bearing between gear and support

23
476/900

Overload release

10
476/27

Plural gearing in series

5
476/28

Flexible belt in drive train

8
476/29

Friction gearing is ratio change gearing

2
476/30

Friction gearing is stepless ratio change

8
476/33

Friction gearing is ratio change gearing

31
476/34

One gear is toothed bevel gear

11
476/35

One gear is worm gear

3
476/31

Plural friction gearing in series

6
476/32

Ratio change gearing and nonratio change gearing

1
476/6

Ratio change by expansion or compression of flexible friction surface

5
476/65

Spring urges contacting gears into engagement

29
476/66

Coil spring

26
476/47

Stepless ratio change

18
476/55

Driving and driven gears on nonlinear angularly related axes

34
476/56

Perpendicular

5
476/57

Disc and wheel

9
476/58

Disc on input shaft

12
476/50

Intermediate idler between driving and driven gears

26
476/51

Idler between conoidal gears

25
476/52

Idler is ring

14
476/53

Rigid

17
476/54

Idler between flat disks

11
476/49

Plural interdigitated disks on parallel axes

9
476/48

With condition responsive means to vary contact pressure

33
476/59

Stepped ratio change

11
476/60

Stepped motor shaft

2
476/7

With friction enhancing fluid

19
476/12

With indicator or alarm

6
476/8

With lubrication

68
476/14

With transmission cooling or heating means

5
 
 
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