Sled
US3952354A · kind A · utility
Inventor
Key dates
| Filing date | Oct 23, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Oct 23, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B34/54
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sled for use on snow, grass, sand, and the like, as well as on water. The sled has a body with a relatively sharply upswept prow which projects well above the rear end of the body and slopes upwardly in each lateral direction from a lower central keel rib on the body. The sled is towed by a line attached to the front end of the keel rib. This body shape provides protection for the rider, prevents the body from knifing into the surface over which the sled is moving, and permits steering control of the sled by leaning from side to side. Lines with or without an attached handle may be secured to the prow for use by the rider in maintaining his balance and steering the sled when being towed. The body may have an inclined ramp surface at the underside extending across the rear end of the body for producing a planing action which holds the prow down during motion of the sled through water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.