US PATENT SUBCLASS 440 / 53
.~ With means effecting or facilitating movement of propulsion unit or a segment of the propulsion unit (e.g., tilting or steering)

Current as of: June, 1999
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440 /   HD   MARINE PROPULSION

49  DF  SCREW PROPELLER {12}
53.~ With means effecting or facilitating movement of propulsion unit or a segment of the propulsion unit (e.g., tilting or steering) {9}
54  DF  .~.~> With means limited to vertical movement within hull cavity
55  DF  .~.~> Having restraining means {1}
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 {2}
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

DEFINITION

Classification: 440/53

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

(under subclass 49) Device wherein a means is provided that moves, assists in, or allows the movement of the propulsion unit; this movement may include rotation about a vertical and/or horizontal axis or vertical or horizontal transitory movement or a combination thereof.