发明名称 |
Reaction injection molded recreation boards with spaced rectangular reinforcing rods |
摘要 |
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.
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申请公布号 |
US4897063(A) |
申请公布日期 |
1990.01.30 |
申请号 |
US19850798066 |
申请日期 |
1985.11.14 |
申请人 |
WELLINGTON LEISURE PRODUCTS, INC. |
发明人 |
SCHEURER, ROBERT S.;HANCOCK, KENDAL |
分类号 |
B29C44/12;B29C70/26;B63B35/79 |
主分类号 |
B29C44/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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