Reaction injection molded recreation boards with spaced rectangular reinforcing rods
US4897063A · kind A · utility
14Cited by
19References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1985 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Nov 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reaction injection molded recreation board with spaced rectangular reinforcing rods. The rods are rectangular in cross section and are disposed between upper and lower surfaces of the board. Position clips maintain the reinforcing rods in mutually spaced relationships within an injection mold during the process of injecting foam plastic. The structure of the positioning clips is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.