发明名称 |
Rolled roof vent and method of making same |
摘要 |
An improved roll-form vent for buildings comprises a sequentially thermoformed polymeric vent which provides multiple venting air flow paths between the interior of a building and ambient atmosphere. The vent includes projections extending from a web and a plurality of vent openings that cooperate with screening to bar entry into the building of water, insects and foreign matter. A method of making the vent includes steps of providing a web of material of indeterminate running length, heating the web, sequentially thermoforming the web, cooling the web and rolling the formed vent for storage, shipment and use.
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申请公布号 |
US5673521(A) |
申请公布日期 |
1997.10.07 |
申请号 |
US19960609288 |
申请日期 |
1996.03.01 |
申请人 |
BENJAMIN OBDYKE INCORPORATED |
发明人 |
COULTON, MICHAEL S.;EHRMAN, GEOFFREY N.;HORVATH, WILLIAM F.;LAUBSCH, KENNETH L.;DEMEO, JOSEPH |
分类号 |
E04D13/17;F24F7/02;(IPC1-7):E04B7/00 |
主分类号 |
E04D13/17 |
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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