Omar F. Jimenez,Nicholas Ransom Powley,Andrew G. Fischer,Yefim Safris
申请号：
US15174454
公开号：
US10117757B2
申请日:
2016.06.06
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An improved mechanism for expanding or lifting a device in accordance with various embodiments of the present invention is a coaxial screw gear sleeve mechanism. In various embodiments, coaxial screw gear sleeve mechanisms includes a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing a device utilizing such a mechanism to expand or lift between a collapsed configuration and an expanded configuration.
