Skating sails
US4311324A · kind A · utility
Inventor
Key dates
| Filing date | Dec 31, 1979 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Dec 31, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C11/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sail device for use in propelling a roller skater, ice skater or the like employs a balancing pole from which the sail material is suspended. The sail may be formed in two sections which come together near the center of the pole or may be formed in a single section with cut-outs near the center thereof to accommodate the hands of the user. The sails are generally triangular in shape, the lower corners of the sail sections, where dual sails are used, being removably attached to the shoes of the user as at the shoelaces thereof, and in the case of a single sail section, attachment being made to the user's shoe or a skateboard at or near the bottom apex portion of the triangle. In use, the user grasps the balance pole near the center thereof and suspends the sails in a desired position for propulsion by the wind.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.