发明名称 |
Sealing device |
摘要 |
The sealing device disclosed herein is designed for providing an air tight seal between a door casing and the sides of a vehicle positioned adjacent the casing. It comprises an elongated rigid angular profile having flanges which define a channel-shaped space therebetween and a resilient and collapsible pad structure fastened in the channel-shaped space between the flanges of the angular profile. The pad structure includes a collapsible spongy material enclosed in an air tight envelope, and the interior of the pad communicates with a vacuum source. In its distended position, the material inside the pad structure will cause the pad to expand a considerable distance beyond the flanges of the angular profile so as to abut the sides of the vehicle thereby providing an air tight seal. When a vacuum is applied to the collapsible material, the pad structure will collapse and be retracted almost completely into the channel-shaped space between the flanges of the profile. The sealing device is then in its inoperative position leaving a free space between the profile and the walls of the vehicle.
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申请公布号 |
US4020607(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19750626944 |
申请日期 |
1975.10.29 |
申请人 |
BJERVIG, LEON HANS-HOTHER |
发明人 |
BJERVIG, LEON HANS-HOTHER |
分类号 |
B65G69/00;(IPC1-7):E06B7/23 |
主分类号 |
B65G69/00 |
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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