Surfing is a very popular recreational activity and sport in which individuals are propelled through the water by the force of waves, whilst standing on boards. Unfortunately for many people these recreational activity and sport are just a dream despite the fact that they live not far from water like lakes, rivers and seas where there are no waves the same as on the ocean beaches. Furthermore, sometimes (it happens quite often) surfers wait for waves on the ocean beaches for hours staying still in water.
My invention provides a Stand up surfboard with a human powered propulsion device. This device comprises a foot platform mounted on top side of the surfboard and two pair of elastic flippers mounted on the underside surface. Standing on the foot platform rider shifts one’s weight from the front of the platform to the rear and then from rear to front, repeats this simple swinging action generating the platform’s seesaw movement and making up and down flippers strokes. At the start of each stroke, the elastic flippers twist and flex under water in such a way that they assume the shape of a propeller blade and propel the surfboard forward. Now you can go surfing without the need for waves as well as to ride waves.
Here is a direction How to Ride:
1. Put a surfboard on water and stand on it holding a balance.
2. Put your front foot on the front part of the foot platform above the front flippers.
3. Put your back foot on the foot platform over the back flippers. Use front leash to steady yourself in the beginning.
4. Push down on the front of the foot platform and then rear of the foot platform to get the surfboard swimming.
5. Once your flippers are flapping and surfboard is already swimming you can shift your weight from foot to foot to build up speed.
6. The faster you shift from one foot to the other the faster it swims.
7. To kick turn surfboard, lift your front foot until the front part of the surfboard comes off the water. Keeping your front foot on the foot platform, swing your front leg in the direction you want to turn the surfboard.
http://pericles.ipaustralia.gov.au/aub/pdf/nps/2007/0531/2007100053B4/
2007100053.pdf
http://img509.imageshack.us/img509/7457/surf0sj2.jpg
http://img440.imageshack.us/img440/1118/hppd1hx9.jpg