Abstract A water ski having a venturi channel formed on its bottom surface with means for securing foot retainers provided on its top surface. A converging venturi channel extending approximately two-thirds the length of the ski is formed on the bottom surface of the ski. A rib integrally attached to the bottom of the ski extends through the venturi channel and is positioned in the center of the channel. A rudder attached to the bottom of the ski is also positioned in the center of the channel. The top surface of the ski is depressed forming two pairs of channels. The front foot retainer has beaded edges along the sides and length of the foot retainer which extend into one pair of the channels being secured therein by plates. An adjustable cup assembly is slidable within the channels and is lockable to the top surface of the ski. A back foot retainer has beaded edges extending along the sides and length of the foot retainer which extend into the second pair of channels being secured therein by plates. Non-skid surfaces are integrally formed in the top surface of the channel for receiving the skier''s feet.
A water ski comprising: a main body with a depressed upper surface, said body has a first and second channel positioned above and adjacent said depressed upper surface, a first flexible toe retainer having a first and second edge extending the length of said toe retainer and being positioned in said first and second channels; an adjustable heel retainer having a plate with edges slidably positioned in said first and second channels; said first and second channels converge from said toe retainer to said heel retainer; a first and second plate secured to said body extending down Adjacent said first and second channel against said toe retainer securing said first and second edge therein.
Claim 2
Dependent Claim
114 words
A water ski comprising: a main body with a depressed upper surface, said body has a first and second channel positioned above and adjacent said depressed upper surface, a first flexible toe retainer having a first and second edge extending the length of said toe retainer and being positioned in said first and second channels; an adjustable heel retainer having a plate with edges slidably positioned in said first and second channels; said first and second channels converge from said toe retainer to said heel retainer; a first and second plate secured to said body extending down Adjacent said first and second channel against said toe retainer securing said first and second edge therein.
Claim 3
Dependent Claim
36 words
The ski of claim 1 wherein: said body has a lower surface with a concave converging venturi channel formed thereon; and further comprising: a rib connected to said body and being centrally positioned in said channel.
Claim 4
Dependent Claim
38 words
The ski of claim 2 and further comprising: a fin connected to said body being centrally positioned in said venturi channel in line with said rib, said venturi channel extending more than one-half the length of said ski.
Claim 5
Dependent Claim
40 words
The ski of claim 3 wherein: said depressed upper surface has a non-skid surface; and further comprising: a second flexible toe retainer attached to said body being identical to said first toe retainer and being positioned behind said heel retainer.
Claim 6
Dependent Claim
29 words
The ski of claim 4 wherein: said fin has a convex upper side fitting into said venturi channel; and, said main body is of thermal plastic injection moldable material.
Claim 7
Dependent Claim
26 words
The ski of claim 5 wherein: said main body is hollow and is filled with a light stuffing material, said main body includes internal strengthening ribs.