Ski with top edge portions of plastic material and device for securing the edge portions during manufacture
US3958810A · kind A · utility
Inventor
Key dates
| Filing date | Jan 13, 1975 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Jan 13, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C5/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The top edge portions of a ski of plastic material are produced in a two-part mold by placing the bottom surface sheet and edge portions of the ski on the floor of the mold while preformed top edge portions carry the top surface sheet and are supported in the mold by an auxiliary strip which extends outwardly from its side surface and rests on two opposite walls of the mold box. The auxiliary strips are held in place by magnets lodged in the opposite mold walls while the mold is open. After closing the mold with the mold lid a plastic foam material in the mold is expanded to produce the ski core and bond together the top and bottom surface sheets and edge portions of the ski. The auxiliary strips are severed from the top edge portions to finish the ski.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.