Mattias Andersson,Andreas Bolin,Marica Demby,John V. Harmeyer,Roger Karlsson,Douglas A. Seim,Varad Narayan Srivastava
申请号：
US16591057
公开号：
US20200030171A1
申请日:
2019.10.02
申请国别(地区):
US
年份:
2020
代理人:
摘要：
In the embodiments described herein, the person lifting device automatically determines if an accessory, such as a sling, is properly connected to a sling bar of the person lifting device and, if the accessory is not properly connected, the person lifting device provides a user with a visual and/or audible warning and, in some embodiments, may lock-out the actuation controls of the person lifting device to prevent the person lifting device from being used.
