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US 4,533,159 AGranted
Wind propulsion apparatus
OwnerJohn C. Seidelinventor
Life of this patent
Estimating the term…
Abstract
Wind propulsion apparatus for a skier or skater comprises a sail secured to its upper end to a mast and having a pair of sheets at its lower end trained about guide pulleys secured to the user's boots. The sheets may be adjustably secured to retainers carried by the user. The mast has a mount at its lower end which may be supported on either of the user's feet.
Claims12
Wind propulsion apparatus for propelling a person equipped with skis or skates across a surface, said apparatus comprising a mast;
- a sail;
- means for connecting said sail to one end of said mast;
- means carried by said mast at its other end for supporting said mast in a generally upright condition;
- first and second guide means;
- mounting means for mounting said guide means on such person's feet;
- and first and second sheets secured to said sail and extending through and beyond the respective guide means for manipulation by such person.
3 more elements
Wind propulsion apparatus for propelling a person equipped with skis or skates across a surface, said apparatus comprising an elongate mast;
- a three-cornered sail;
- means connecting one corner of said sail to said mast at one end thereof;
- means at the other end of said mast for supporting the latter on a selected one of either of the feet of such person;
- first and second guide means;
- means for securing said first and second guide means to the respective feet of such person;
- first and second sheets secured at corresponding ends to the remaining two corners of said sail and extending to and beyond the respective guide means;
- and anchor means for releasably securing said sheets in selected positions of adjustment.
4 more elements
Dependencies are inferred from the claim text.