Oscillating Oar

Abstract

An oar that uses the resistance of water to turn a paddle back and forth as it rotates along a shaft thus creating propulsion for any watercraft.

Description

BACKGROUND

There is no other oar that pivots the paddle along a beam to create propulsion, while it's going side-to-side.

Advantages

Can be used on Navy ships. Offers improved speed and maneuverability.

REFERENCE NUMERALS

FIG. 1 Paddle—an extruded plane with a large end that contains an oddly shaped hole throughout

FIG. 1A Paddle—an extruded plane with a large end that contains an oddly shaped hole throughout

FIG. 2 Shaft—a long rod with a long notch and two cylinders

FIG. 2A Shaft—a long rod with a long notch and two cylinders

FIG. 3 Ball Bearing—a ball bearing with the inner part elongated

FIG. 4 Oscillating Oar—A two-way oar

FIG. 4B Oscillating Oar—A two-way oar

FIG. 4C Oscillating Oar—A two-way oar

BRIEF DESCRIPTION

FIG. 1 Paddle—Isometric view

FIG. 1A Paddle—Top view

FIG. 2 Shaft—End view (shows a notch using hidden lines)

FIG. 2A Shaft—Isometric view

FIG. 3 Ball Bearing—Isometric view

FIG. 4 Oar Assembly—Exploded View

FIG. 4A Oar Assembly—End View

FIG. 4B Oar Assembly—Assembled View

DETAILED DESCRIPTION

FIG. 1 Oar is located around an elongated notch that is on FIG. 2 Shaft. Two FIG. 3 Ball Bearings allow the rotation to occur with minimal friction between an FIG. 1 Oar and FIG. 2 Shaft.

Operation

The FIG. 1 Oar rotates back and forth on the FIG. 2 Shaft. The FIG. 2 Shaft has a long notch that catches FIG. 1 Oar once FIG. 1 Oar reaches the end of its movement. FIG. 3 Ball Bearing allows the swivel action to occur without a grinding sound being made. Once the FIG. 2 Shaft reaches the end of its range of motion and starts to move in the other direction, FIG. 1 Oar simply rotates to the other extreme and catches on the notch of FIG. 2 Shaft. In this way, The FIG. 100 Oscillating Oar can propel a watercraft very efficiently.

CONCLUSION, RAMIFICATIONS, AND SCOPE

The FIG. 100 Oscillating Oar can propel a watercraft of any size to much faster speeds than a standard propeller alone. It can be attached to the sides of watercraft in a special way only to be raised while docking. This is not like a trireme oar. A hose can spray off the seawater to prevent any corrosion from occurring, regarding FIG. 3 Ball Bearing.

Claims

1. An oar comprising a shaft, a paddle, and optional ball bearings

2. The oar of claim 1 includes a cylindrical shaft with a short protrusion that extends between two stoppers.

3. The shaft of claim 2 also has an unaltered length.

4. The shaft of claim 2 has an optional, unaltered length to allow for ball bearings.

5. The paddle of claim 1 has a uniquely shaped hole going completely through the length of it.

6. The ball bearings of claim 1 can be welded to the shaft of claim 1 and paddle of claim 1.