US Patent Class 440
MARINE PROPULSION



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  MEANS TO CONTROL THE SUPPLY OF ENERGY RESPONSIVE TO A SENSED CONDITION
2  DF  WITH INDICATOR
3  DF  DIVERSE ENGINE MEANS
4  DF  PLURAL ENGINES WITH SINGLE PROPELLING MEANS
5  DF  HYDRAULIC FLUID DRIVE FOR PROPELLING MEANS
6  DF  ELECTRIC DRIVE FOR PROPELLING MEANS
7  DF  .~ With foot control
8  DF  WIND DRIVEN MOTORS
9  DF  WAVE POWERED PROPELLING MEANS
10  DF  .~ By oscillating weight
11  DF  POWERED FROM LAND VEHICLE SUPPORTED BY VESSEL
12  DF  .~ Land vehicle is two-wheel type
12.5  DF  SELF-PROPELLED VEHICLE HAVING LAND AND WATER PROPULSION MEANS (E.G., AMPHIBIOUS VEHICLE)
12.51  DF  .~ Having separated propulsion means for land and water
12.52  DF  .~.~ Propulsion means moveable to stowed position
12.53  DF  .~.~.~ Water propulsion means is moveable
12.54  DF  .~.~.~.~ And land propulsion means is moveable
12.55  DF  .~.~ Operator powered drive for propulsion means
12.56  DF  .~.~ Flexible endless track propulsion means
12.57  DF  .~.~ Motor driven screw propeller shaft
12.58  DF  .~.~.~ By flexible endless member (e.g., belt, chain)
12.59  DF  .~.~.~ By gearing
12.6  DF  .~.~.~.~ Bevel gearing
12.61  DF  .~.~.~.~ Spur gearing
12.62  DF  .~ Operator powered drive for propulsion means
12.63  DF  .~ Flexible endless track propulsion means
12.64  DF  .~.~ Driven by sprocket-type wheel
12.65  DF  .~ Helical screw propulsion means
12.66  DF  .~ Wheel-type propulsion means
12.67  DF  .~.~ Drum type
12.68  DF  .~.~ Having integral spoke and propelling blade means
12.69  DF  .~.~ Having propelling blade extending from side of wheel
12.7  DF  .~.~ Having peripherally mounted cleat means
13  DF  OSCILLATING PROPELLING MEANS
14  DF  .~ Fishtail motion propelling means
15  DF  .~.~ Flexible
16  DF  .~ Moving wave propeller
17  DF  .~ Having nonpropelling cycle segment
18  DF  .~.~ Piston and cylinder
19  DF  .~.~ With means to move propelling element to nonpropelling position
20  DF  .~.~ With reversing means
21  DF  OPERATOR POWERED DRIVE FOR PROPELLING MEANS
22  DF  .~ Rocking watercraft
23  DF  .~ Fluid pump
24  DF  .~ Having reciprocating pull cable
25  DF  .~ Sliding handle or pedal
26  DF  .~ Rotary cranking arm
27  DF  .~.~ Plural-crank type
28  DF  .~.~ Having flexible drive shaft
29  DF  .~.~ Having endless drive member
30  DF  .~.~.~ Chain and sprocket
31  DF  .~.~ Including gear means
32  DF  .~ Lever with connecting linkage
33  DF  TOWING
34  DF  .~ Cable system
35  DF  .~ Track system
36  DF  .~ Ground wheel or poler
37  DF  AIR PROPELLED BOAT
38  DF  JET DRIVE
39  DF  .~ Auxiliary use of propulsive fluid
40  DF  .~ Direction control for fluid jet
41  DF  .~.~ With bucket or clamshell-type reversing means
42  DF  .~.~ Pivoted outlet
43  DF  .~.~ Pivoted vane
44  DF  .~ Propulsion fluid is pressurized gas
45  DF  .~.~ Produced by combustion
46  DF  .~ Having means to prevent clogging
47  DF  .~ Having means to increase fluid drive means efficiency
48  DF  HELICAL SCREW
49  DF  SCREW PROPELLER
50  DF  .~ Variable pitch
51  DF  .~ Combined with rudder
52  DF  .~ With vibration dampening
53  DF  .~ With means effecting or facilitating movement of propulsion unit or a segment of the propulsion unit (e.g., tilting or steering)
54  DF  .~.~ With means limited to vertical movement within hull cavity
55  DF  .~.~ Having restraining means
56  DF  .~.~.~ With releasing means when propulsion unit hits obstruction
57  DF  .~.~ Having gimbal or universal joint support
58  DF  .~.~ Having toothed or threaded member to move propulsion unit or a segment of the propulsion unit
59  DF  .~.~.~ Screw type
60  DF  .~.~.~ Rack and pinion
61  DF  .~.~ Having fluid motor to move propulsion unit or a segment of the propulsion unit
62  DF  .~.~ Having pliant member to move propulsion unit or a segment of the propulsion unit
63  DF  .~.~ Having link or lever to move propulsion unit or a segment of the propulsion unit
64  DF  .~.~ Having shaft with releasable coupling
65  DF  .~.~ With means to lift propeller when an obstruction is hit
66  DF  .~ Having means to control flow around propeller
67  DF  .~.~ Nozzle (Kort-Type)
68  DF  .~.~ Hull channel
69  DF  .~.~.~ With open bottom
70  DF  .~.~ Hull concavity
71  DF  .~ Propeller guard
72  DF  .~.~ Cage or screen
73  DF  .~ Self-clearing
74  DF  .~ Shaft braking or locking
75  DF  .~ Having transmission
76  DF  .~ Propulsion unit casing
77  DF  .~.~ Cowl
78  DF  .~.~ Propeller shaft housing
79  DF  .~ Propeller arrangement
80  DF  .~.~ Tandem
81  DF  .~.~.~ On single shaft
82  DF  .~.~ Supporting strut
83  DF  .~ Shafting
84  DF  ENGINE, MOTOR, OR TRANSMISSION CONTROL MEANS
85  DF  .~ For starter means
86  DF  .~ For transmission
87  DF  .~ For engine speed
88  DF  MEANS FOR HANDLING ENGINE FLUIDS
89  DF  .~ Exhaust gas handling means
90  DF  PADDLE WHEEL
91  DF  .~ Having means to reposition paddle wheel assembly
92  DF  .~ Having means to retract paddle or change paddle attitude
93  DF  .~.~ Having means to provide cyclic change of paddle attitude (e.g., Voith Schneider)
94  DF  UPRIGHT REMAINING ORBITING PADDLES
95  DF  FLEXIBLE ENDLESS PROPELLING MEANS
96  DF  .~ With paddle
97  DF  .~.~ Foldable or retractable to nonpropelling position
98  DF  BUOYANT PROPELLING MEANS
99  DF  .~ Rotating outer hull
100  DF  .~ Wheellike
101  DF  OAR OR PADDLE
102  DF  .~ Articulated sectional oar or paddle
103  DF  .~.~ Having gear
104  DF  .~ Support
105  DF  .~.~ Having outrigger
106  DF  .~.~ Oarlock
107  DF  .~.~.~ Having oar shaft restraining means
108  DF  .~.~.~ Separate mounting means
109  DF  .~.~.~.~ Socket type
110  DF  .~.~ Having guard for oar
111  DF  INBOARD ENGINE MOUNT
112  DF  .~ Having thru-hull sealing means
113  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTION
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900  DF  OUTBOARD MOTORS AND OUTDRIVES