Gregory Nephi Nordgren,William Louis Barnat,Keith Van Voorst,Renaud Durand
申请号：
US16704541
公开号：
US20200108275A1
申请日:
2019.12.05
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A structure includes a base comprising a first ramp and an opposing, second ramp. The structure further includes a shell frame having an inner surface configured to a shape of a body part and an outer convex surface, wherein the outer convex surface of the shell frame rides upon, and moves relative to, upper surfaces of the first ramp and the second ramp to enable a pitch of the shell frame to be adjusted relative to the base.
