Marine propulsion – Oar or paddle
Reexamination Certificate
2002-12-19
2004-09-21
Wright, Andrew (Department: 3617)
Marine propulsion
Oar or paddle
Reexamination Certificate
active
06793547
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
A kayak paddle includes safety mirror means mounted on the central portion f the kayak shaft, thereby to permit a user to view the rear area behind the kayak without any repositioning of the kayak. The safety mirror includes a frame and a reflective body, and the frame is connected with the shaft by mirror mounting means of the resilient clamping arm type, a Velcro strap fastening arrangement, an adhesive bonding means, a screw-operated pipe clamping device, or the like.
2. Brief Description of the Prior Art
It is well known in the patented prior art to provide rear view mirrors on an device so that a user can view the scenery behind him or her. For example, in the Grissen, et al., U.S. Pat. No. 4,826,306, a rear view mirror is mounted on the handlebar of a bicycle, and vehicular mirrors are disclosed in the patents to Schmidt, et al.,U.S. No. 5,301,916 and Stem U.S. Pat. No. 1,311,253. In the Deal U.S. Pat. No. 5,361,169, a mirror is disclosed that can be attached to an underwater diver's wrist or arm so that the diver can see objects, fish, or a diving partner located behind him or her.
It is also known in the sport of recreational kayaking to provide kayak paddles having various blade designs and configurations, degrees of blade feather, and shaft designs. These paddles may be formed of wood, a light weight metal or alloy, or a suitable synthetic plastic material, such as a carbon-fiberglass material. Quite often the paddles are sectional, and include two-piece and four-piece models that can be disassembled and stored like luggage. The cost of such paddles normally runs from bout $ 140 for a wood laminate paddle to well over $ 355 for a 21-ounce paddle formed from space-age materials.
A major problem in kayaking is that the user must normally turn the kayak to some extent in order to view the area behind the user, which turning is difficult and time consuming, and also very dangerous in white water kayaking conditions. Also, a busy kayak user must generally keep both hands on the kayak paddle for control of the craft, which is quite tipsy in the water.
A kayak is a water craft normally in continuous motion when in use, as are bicycles and motor vehicles. Nonetheless, there is a major difference with water craft, and particularly a kayak, that sets it very much apart from other transportation devices.
The surface on which a bicycle moves or an automobile rides is stationary. Nothing is stationary about water. A kayak is moving continually sideways, up and down and in constantly changing directions as well as forward. A bicycle or automobile moves in a single dimension which is straight forward. A kayak moves in all three different dimensions constantly. Waves, currents, wind, wakes from the other craft, tides, imperfect paddling strokes and the rocking, from side to side, of the kayak itself, are seven of the many separate forces always resulting in three dimensional movement.
It is true that a person can get a clear rear view picture by looking through the rear view mirror of an automobile or bicycle moving in only one direction—straight forward. However, a mirror affixed to a kayak or even any object connected or affixed to a kayak will be worthless and not finctional. A mirror must remain in stationary directional alignment with the human eye in order for the human eye to focus on a particular object being viewed behind the water craft. The three dimensional movement of a kayak further interplaying with the separate simultaneous movement of a persons body as they continually shift balance and paddle prevents focusing between the human eye, a mirror fixed to a kayak and an object in a rear view. Accordingly, a mirror affixed to any moving vehicle, or any object directly attached to a moving vehicle, will not meet the required needs of a person operating a kayak or other similar type water craft.
The present invention was developed to solve the need for displaying to a kayaker the view behind the user without varying the orientation of the kayak.
SUMMARY OF THE INVENTION
Accordingly, a primary object of the present invention is to provide a kayak paddle having a safety mirror mounted centrally on the paddle shaft between the two handgrip portions adjacent the paddle blades, respectively. In this manner, in order to view the area behind the kayak, the kayaker need only to raise the paddle by lifting both hands, and to orient the paddle and the mirror to view the desired object. Upon completion of the viewing, the kayaker simply lowers his or her hands to lower the paddle and to return the kayak blades into the water. Thus, in accordance with the primary object of the invention, this rear viewing procedure may be achieved in an expedited manner without any variation of the orientation of the tipsy kayak.
In accordance with a more specific object of the invention, mirror mounting means are provided for mounting the safety mirror on the kayak paddle centrally between the two handgrip portions adjacent the paddle blades, respectively. In one case, the mirror is removably connected with the paddle shaft, thereby to permit complete disassembly and storage of a sectional kayak paddle. Alternatively, the mirror can be permanently attached to the shaft portion of the paddle, as, for example, by the use of a permanent adhesive.
Good balance in a kayak in motion is an absolute necessity. A kayak paddle doubles as a balancing aid to a kayaker, much like a pole to a tightrope walker. An attached mirror allows the kayaker to maintain balance in his prescribed “paddler's box” when viewing through a mirror attached to the center of the paddle. On the other hand, wearing a wrist mirror attachment and maintaining proper balance, would be measurably more difficult. Keeping balance is easier when the mirror is attached to the paddle shaft instead of the user's wrist, arm, or head.
According to the further object of the invention, a mirror having fastening mechanism attached to it is provided that will allow the user to attach the device to a kayak or canoe paddle. By this means, the user can quickly position the paddle that is holding the mirrored device into an versatile position in front of the user, thereby giving the user an immediate panoramic view in back of the user. There are specific advantages to having a mirror attached to a water craft paddle and particularly a kayak paddle. These advantages also pertain to canoes and other classification of water craft.
A kayak is a slender shaped water craft that is by nature “tippy.” The user (or more than one user in the case of a tandem) sits erect, facing forward and with their legs and feet more or less extended in front of them. A person must apply balance continually while in a kayak. A persons body movement is restricted. When sitting in a kayak, a user cannot normally twist or turn sufficiently to readily see everything in their rear.
Presently, a person sitting in a kayak, especially in motion, must necessarily change the direction that the kayak is pointing in order to see behind them. This generally involves slowing or stopping the kayak as well. Both time and physical effort, as well as intended kayak course, are relinquished in any effort to achieve a rear view at any time during a kayak trip.
A kayak paddle, when held properly by a user, besides driving the kayak, also serves to provide an additional measure of balance and stability to that user much the same as a “tightrope walker” uses a pole to facilitate balance. Paddlers in kayaks are taught to maintain a position known as a “paddlers box.” This is, in fact, a customary prescription for proper paddling. A person in a kayak would likely find it difficult and cumbersome to hold a mirror in one hand and a paddle in the other hand, trying to balance themselves awkwardly, while looking through a hand held mirror for a rear view, especially in a tippy craft often rocking in waves.
The proposed paddle mirror safety device can be affixed to a paddle in just secondsfor any temporary need to have a rear field of view.
Laubscher, Sr. Lawrence E.
Wright Andrew
LandOfFree
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