发明名称 |
Door apparatus with release assembly |
摘要 |
A closure apparatus for closing an opening in a partition with a frame disposed around the opening includes a drum member rotatably mounted to the partition at the top end of the opening. It also includes a curtain member secured to the drum member. The curtain member winds around the drum member to move out of the opening in the partition; and it extends from the drum member to close the opening. A counterweight connected to the drum member offsets the weight of the curtain member; and a reducing weight reduces the weight of the counterweight to allow the curtain member to drop from a raised position. An activating assembly engages the reducing weight with the counterweight and allows the curtain member to unwind from the drum member and close the opening.
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申请公布号 |
US5482103(A) |
申请公布日期 |
1996.01.09 |
申请号 |
US19940191419 |
申请日期 |
1994.02.03 |
申请人 |
RAYNOR GARAGE DOORS |
发明人 |
BURGESS, COY H.;BONNELL, JOEL M. |
分类号 |
A62C2/24;E06B9/08;E06B9/78;(IPC1-7):E05F15/20 |
主分类号 |
A62C2/24 |
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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