发明名称 Overhead door with dual safety-edge
摘要 A door assembly comprising a door body having a bottom edge. The door body is selectively movable up and down to open and close an opening. The door assembly further comprises a first sensor body and a second sensor body. Each sensor body is in communication with a door controller, and each sensor body has an impact portion responsive to an impact proximate the bottom edge of the door body.
申请公布号 US6286257(B1) 申请公布日期 2001.09.11
申请号 US20000507834 申请日期 2000.02.22
申请人 RYTEC CORPORATION 发明人 GREGORIOU DANIEL J.;KONETZKI JEFFREY
分类号 E05F15/00;(IPC1-7):E05F15/02 主分类号 E05F15/00
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