USPC 114/144R

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U.S. Patent Classification (USPC) class 114/144R covers steering mechanisms for ships, that is devices for changing the direction or speed of a marine vessel’s motion by means of rudders, brakes, speed-retarders, etc.[1][2]

The meaning of the suffix R is not plain from the sources yet.

From https://www.uspto.gov/web/patents/classification/shadowFiles/defs114sf.htm?114_159&S&8K&8V&90#90:

USPC 114/144R, STEERING MECHANISM: Devices for changing the direction or speed of a vessel’s motion by means of rudders, brakes, speed-retarders, etc.

  • USPC 114/154, Wheel-shaft gearing: This subclass is indented under subclass 144. Combinations of the ordinary steering wheel or equivalent and its shaft with gears for operating the rudder, but not involving a wheel and drum.
  • USPC 114/159, Segmental rack: This subclass is indented under subclass 154. Wheel-shaft gearing operating a rack of segmental shape or equivalent located upon the rudderhead and turning therewith.
Relatedly, USPC 244, Aeronautics and Astronautics: subclasses 75.1 through 99.9for apparatus and devices for controlling aircraft. Subclasses 76-82 is the generic subclass for the automatic steering of mobile craft in two and three dimensions. See subclass 175 and the classes specified in the notes thereto for the classes which provide for electrically controlled or actuated apparatus for controlling the motion and/or steering of mobile devices and for a statement as to the line between the classes.

References

  1. ↑ USPC class definition for category 114/144 at ustpo.gov
  2. ↑ Schedule for class 114 at uspto.gov
Patents in this category
Enclosing categories USPC 114
Subcategories USPC 114/154, USPC 114/159
Keywords Steering, Braking
Start year
End year
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