发明名称 |
WEATHERSTRIP PRODUCT FORMED BY SEQUENTIAL EXTRUSION OF CELLULAR AND NON-CELLULAR PLASTIC RESINS |
摘要 |
An extrusion product or profile is formed by extrusion of a cellular compound to form a base and then subsequent extrusion of a non-cellular compound to form an attached flexible strip. The final product or profile is used as a garage door weatherstrip in which the cellular base is mounted against the door jamb and the strip of flexible non-cellular material extends out from the cellular base to prevent the flow of air through openings between doors and adjacent jambs or frames. The process for forming such a product involves sequential extrusion of the two portions of the product. First, a cellular base is extruded through a die and vacuum sizer and allowed to cool. Next, a saddle die is used to apply the flexible non-cellular strip to a portion of the cellular base.
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申请公布号 |
CA2219735(C) |
申请公布日期 |
2006.01.03 |
申请号 |
CA19972219735 |
申请日期 |
1997.10.30 |
申请人 |
MARLEY MOULDINGS INC. |
发明人 |
PAULEY, ROBERT;BURGE, GARY |
分类号 |
E06B7/16;B29C44/22;B29C44/56;B29C47/02;B29C47/06;B29D99/00;B29K101/12;B29K105/04;E06B7/23 |
主分类号 |
E06B7/16 |
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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