公开(公告)号：US20170191365A1

公开(公告)日：2017-07-06

申请号：US15395152

申请日：2016-12-30

申请人： FCI Holdings Delaware, Inc.

发明人： John C. Stankus ,  Richard Wharton ,  Fred Stafford ,  Lumin Ma ,  Kevin Jinrong Ma ,  Dakota Faulkner

IPC分类号： E21F1/14 ,  E21F1/00 ,  E04C2/20 ,  E04B1/94 ,  E04B2/60

CPC分类号： E21F1/14 ,  E04B1/948 ,  E04B2/60 ,  E04C2/205 ,  E21F1/003

摘要： An overcast system to block an intersection between two or more mine passageways so as to prevent the mixture of intake air with return air. The overcast system includes a first sidewall formed of one or more prefabricated panels, a second sidewall formed of one or more prefabricated panels, and a top member formed of one or more prefabricated panels, such that the top side spans the width between the first sidewall and the second sidewall. A fire-resistant coating is applied to at least a portion of the first sidewall, the second sidewall, or the top member to provide an air-tight, fire-resistant structure. Each of the one or more prefabricated panels is formed from a composite material having one or more structural studs embedded at least partially therein.