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US 8,950,347 B2Granted
Performance oar
OwnerAdel Radwaninventor
Life of this patent
Estimating the term…
Abstract
This invention relates to an apparatus and method for rowing by generating stored energy in stretchable, retracting members and using that stored energy to pull oars back to a neutral position.
Claims8
A method of rowing a boat in a forward direction comprising:
- a) moving handles of two oars, each oar pivoting about an oarlock, toward a bow of said boat along inside edges of oar range-of-motion control devices until said oars reach the edges closest to said boat's bow of said oar range-of-motion control devices;
- b) guiding the return of the oars to a neutral position with the force of stretchable, retracting members;
- c) repeating steps a-b.
A rowing apparatus comprising:
- a) a boat;
- b) at least a first and a second, but no more than 10, outriggers, each outrigger having a proximal and a distal end, said proximal end of each outrigger connected to the boat;
- c) a first oarlock mounted to the distal end of said first outrigger;
- d) a first oar, said first oar comprising a handle, a shaft, and a blade, said first oar's shaft removably attached to said first oarlock;
- e) a second oarlock mounted to the distal end of said second outrigger;
- f) a second oar, said second oar comprising a handle, a shaft, and a blade, said second oar's shaft removably attached to said second oarlock;
- g) a first stretchable, retracting member having two ends:
- i. a first end attached to said first oar's shaft near said first oar's blade, and
- ii. a second end attached to said boat on a first side of said boat between said boat's stern and said first outrigger;
- h) a second stretchable, retracting member having two ends:
- i. a first end attached to said first oar's shaft near said first oar's blade, and
- ii. a second end attached to said boat on said first side of said boat between said boat's bow and said first outrigger;
- i) a third stretchable, retracting member having two ends:
- i. a first end attached to said first oar's blade, and
- ii. a second end attached to said boat on said first side of said boat between said boat's stern and said first outrigger;
- j) a fourth stretchable, retracting member having two ends:
- i. a first end attached to said first oar's blade, and
- ii. a second end attached to said boat on said first side of said boat between said boat's bow and said first outrigger;
- k) a fifth stretchable, retracting member having two ends:
- i. a first end attached to said second oar's shaft near said second oar's blade, and
- ii. a second end attached to said boat on a second side of said boat between said boat's stern and said second outrigger;
- l) a sixth stretchable, retracting member having two ends:
- i. a first end attached to said second oar's shaft near said second oar's blade, and
- ii. a second end attached to said boat on said second side of said boat between said boat's bow and said second outrigger;
- m) a seventh stretchable, retracting member having two ends:
- i. a first end attached to said second oar's blade, and
- ii. a second end attached to said boat on said second side of said boat between said boat's stern and said second outrigger;
- n) an eighth stretchable, retracting member having two ends:
- i. a first end attached to said second oar's blade, and
- ii. a second end attached to said boat on said second side of said boat between said boat's bow and said second outrigger.
27 more elements
A method of rowing a boat in a forward direction comprising:
- a. moving handles of two oars, each oar pivoting about an oarlock, toward a bow of said boat, thereby causing a shaft of each oar to travel along an inside edge of an oar range-of-motion control device until said shaft of said oar reach the inside edge closest to said boat's bow of said oar range-of-motion control device;
- b. guiding the return of the oars to a neutral position with the force of stretchable, retracting members located outside a hull of said boat;
- c. repeating steps a-b.
Dependencies are inferred from the claim text.