公开(公告)号：US5681021A

公开(公告)日：1997-10-28

申请号：US495798

申请日：1995-06-27

申请人： Ronald C. Noll

发明人： Ronald C. Noll

IPC分类号： E04B7/02 ,  E04G23/02 ,  E04G23/03 ,  E01G25/00

CPC分类号： E04B7/022 ,  E04G23/0266

摘要： A system for lifting and supporting a roof including a jack and a pair of jack mounting brackets. One of the mounting brackets is attached to a roof truss and the other of the mounting brackets is attached to a ceiling joist. The jack extends between the mounting brackets, and has reduced diameter ends which are received within enlarged openings in the mounting brackets.

摘要翻译： 一种用于提升和支撑包括千斤顶和一对千斤顶安装支架的屋顶的系统。 其中一个安装支架连接到屋顶桁架上，另一个安装支架连接到天花板托梁上。 插座在安装支架之间延伸，并且具有减小的直径端部，其被接收在安装支架中的扩大开口内。