Laminar device and method for making same
US5032096A · kind A · utility
Inventors
Key dates
| Filing date | Aug 10, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Aug 10, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A strong, lightweight laminar device which can be used as a fin attachment for surfboards and sail boards, or as a skateboard, sailboard or surfboard, per se. The device comprises a lightweight core and one or more layers of strengthening material surrounding the core. In fabricating the device, a suitably shaped mold is lined with a strengthening layer of carbon fiber. A separating layer of random glass is placed between a first strengthening layer and a second, similar strengthening layer. The space at the interior of the lined mold is filled with an appropriate lightweight, buoyant filler material such as polyurethane foam. After the filler is set or cured, the device is removed from the mold and treated or assembled as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.