- 专利标题: DOOR-UNLATCHING DEVICE
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申请号: US17163577申请日: 2021-02-01
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公开(公告)号: US20210310272A1公开(公告)日: 2021-10-07
- 发明人: Daniel Yue Man Chu
- 申请人: Daniel Yue Man Chu
- 申请人地址: US CA Hercules
- 专利权人: Daniel Yue Man Chu
- 当前专利权人: Daniel Yue Man Chu
- 当前专利权人地址: US CA Hercules
- 主分类号: E05B1/00
- IPC分类号: E05B1/00
摘要:
A door-unlatching device including a lower actuator including a foot-pad, an upper actuator including a lever-arm and a handle-mount attachable to a handle of door-latch, and a link coupled to the foot-pad and the lever-arm, wherein the lever-arm is movable between a first position and a second position relative to the handle-mount. It can be set to either engaged mode which allows either hand or foot to operate; or disengaged mode to allow only hand to operate which the door can also be locked from entry as by a normal door latch.
公开/授权文献
- US11828084B2 Door-unlatching device 公开/授权日:2023-11-28
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