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Class Information
Number: 440
Name: Marine propulsion >
Description: This class includes and is limited to devices that relate to and have for their object means other than sails for moving a vessel through the water. Included are all types of propellers acting or reacting upon the water or atmosphere and all inventions for moving tows not otherwise classified.










Class Number Class Name No. of Patents
440/37

Air propelled boat

59
440/98

Buoyant propelling means

12
440/99

Rotating outer hull

4
440/100

Wheellike

24
440/3

Diverse engine means

65
440/6

Electric drive for propelling means

461
440/7

With foot control

73
440/84

Engine, motor, or transmission control means

234
440/87

For engine speed

235
440/85

For starter means

41
440/86

For transmission

205
440/95

Flexible endless propelling means

12
440/96

With paddle

7
440/97

Foldable or retractable to nonpropelling position

4
440/48

Helical screw

21
440/5

Hydraulic fluid drive for propelling means

57
440/111

Inboard engine mount

87
440/112

Having thru-hull sealing means

126
440/38

Jet drive

464
440/39

Auxiliary use of propulsive fluid

38
440/40

Direction control for fluid jet

115
440/42

Pivoted outlet

149
440/43

Pivoted vane

71
440/41

With bucket or clamshell-type reversing means

130
440/47

Having means to increase fluid drive means efficiency

157
440/46

Having means to prevent clogging

57
440/44

Propulsion fluid is pressurized gas

23
440/45

Produced by combustion

17
440/88R

Means for accomodating or moving engine fluids

491
440/88A

Air intake for engine

137
440/88C

Cooling for engine

127
440/88D

Auxiliary use of cooling fluid

20
440/88G

Water cooling exhaust

32
440/88J

Jackets for pipe, exhaust manifold or expansion chamber

45
440/88K

Within drive shaft housing

15
440/88M

Cooling water intake

56
440/88N

Engine flushing, purging, draining or winterizing equipment

44
440/88HE

Heat exchanger

47
440/88P

Pump

26
440/88T

Tell-tale outlet

7
440/88F

Fuel for engine

64
440/88L

Lubricant for engine

124
440/89R

Means for handling exhaust gas

529
440/89G

High and low speed exhaust pressure relief or outlet location condition responsive

21
440/89E

Preventing reverse flow of exhaust

20
440/89J

Silencer, expansion chamber, muffler

62
440/89A

Through hub outlet

24
440/89H

Treating exhaust with a catalyst

56
440/89B

Water cooling exhaust

46
440/89C

Jackets for pipe, exhaust manifold or expansion chamber

57
440/89D

Within drive shaft housing

17
440/89F

Watertrap

23
440/1

Means to control the supply of energy responsive to a sensed condition

466
440/113

Miscellaneous

132
440/101

Oar or paddle

116
440/102

Articulated sectional oar or paddle

28
440/103

Having gear

7
440/104

Support

49
440/110

Having guard for oar

1
440/105

Having outrigger

23
440/106

Oarlock

30
440/107

Having oar shaft restraining means

6
440/108

Separate mounting means

1
440/109

Socket type

9
440/21

Operator powered drive for propelling means

90
440/23

Fluid pump

8
440/24

Having reciprocating pull cable

14
440/32

Lever with connecting linkage

17
440/22

Rocking watercraft

6
440/26

Rotary cranking arm

43
440/29

Having endless drive member

21
440/30

Chain and sprocket

52
440/28

Having flexible drive shaft

13
440/31

Including gear means

33
440/27

Plural-crank type

52
440/25

Sliding handle or pedal

18
440/13

Oscillating propelling means

49
440/14

Fishtail motion propelling means

34
440/15

Flexible

30
440/17

Having nonpropelling cycle segment

18
440/18

Piston and cylinder

7
440/19

With means to move propelling element to nonpropelling position

3
440/20

With reversing means

7
440/16

Moving wave propeller

11
440/90

Paddle wheel

59
440/91

Having means to reposition paddle wheel assembly

14
440/92

Having means to retract paddle or change paddle attitude

10
440/93

Having means to provide cyclic change of paddle attitude (e.g., voith schneider)

19
440/4

Plural engines with single propelling means

25
440/11

Powered from land vehicle supported by vessel

26
440/12

Land vehicle is two-wheel type

28
440/49

Screw propeller

108
440/51

Combined with rudder

60
440/66

Having means to control flow around propeller

149
440/68

Hull channel

19
440/69

With open bottom

57
440/70

Hull concavity

13
440/67

Nozzle (kort-type)

103
440/75

Having transmission

378
440/79

Propeller arrangement

70
440/82

Supporting strut

24
440/80

Tandem

72
440/81

On single shaft

49
440/71

Propeller guard

90
440/72

Cage or screen

34
440/76

Propulsion unit casing

129
440/77

Cowl

232
440/78

Propeller shaft housing

93
440/73

Self-clearing

44
440/74

Shaft braking or locking

20
440/83

Shafting

207
440/50

Variable pitch

61
440/53

With means effecting or facilitating movement of propulsion unit or a segment of the propulsion unit (e.g., tilting or steering)

421
440/61R

Having fluid motor to move propulsion unit or a segment of the propulsion unit

376
440/61S

Steering

66
440/61A

Control valve

17
440/61B

Flexible or pliant member assisted by fluid motor

11
440/61C

Working cylinder traveling along rod

10
440/61T

Tilt and/or trim

71
440/61E

And linear lift

6
440/61J

And separate fluid motor for trim

6
440/61D

Having integral pump, cylinder, motor, reservoir located together

9
440/61G

With hydraulic control valve or electrical control circuit

38
440/61H

And separate fluid motor for trim

5
440/61F

Working with pivoting linkage to effect movement

14
440/57

Having gimbal or universal joint support

83
440/63

Having link or lever to move propulsion unit or a segment of the propulsion unit

174
440/62

Having pliant member to move propulsion unit or a segment of the propulsion unit

84
440/55

Having restraining means

71
440/56

With releasing means when propulsion unit hits obstruction

57
440/64

Having shaft with releasable coupling

7
440/58

Having toothed or threaded member to move propulsion unit or a segment of the propulsion unit

63
440/60

Rack and pinion

40
440/59

Screw type

35
440/54

With means limited to vertical movement within hull cavity

42
440/65

With means to lift propeller when an obstruction is hit

20
440/52

With vibration dampening

124
440/12.5

Self-propelled vehicle having land and water propulsion means (e.g., amphibious vehicle)

85
440/12.63

Flexible endless track propulsion means

33
440/12.64

Driven by sprocket-type wheel

12
440/12.51

Having separated propulsion means for land and water

53
440/12.56

Flexible endless track propulsion means

12
440/12.57

Motor driven screw propeller shaft

13
440/12.58

By flexible endless member (e.g., belt, chain)

1
440/12.59

By gearing

7
440/12.6

Bevel gearing

2
440/12.61

Spur gearing

3
440/12.55

Operator powered drive for propulsion means

3
440/12.52

Propulsion means moveable to stowed position

20
440/12.53

Water propulsion means is moveable

6
440/12.54

And land propulsion means is moveable

18
440/12.65

Helical screw propulsion means

6
440/12.62

Operator powered drive for propulsion means

13
440/12.66

Wheel-type propulsion means

33
440/12.67

Drum type

2
440/12.68

Having integral spoke and propelling blade means

1
440/12.7

Having peripherally mounted cleat means

7
440/12.69

Having propelling blade extending from side of wheel

9
440/33

Towing

14
440/34

Cable system

10
440/36

Ground wheel or poler

16
440/35

Track system

1
440/94

Upright remaining orbiting paddles

4
440/9

Wave powered propelling means

28
440/10

By oscillating weight

2
440/8

Wind driven motors

37
440/2

With indicator

135
 
 
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