发明名称 |
Device for assuring predetermined joint loading in roof insulation assemblies |
摘要 |
A fastener assembly for attaching roofing insulation to roof decks. A washer with a broad load-distributing flange has a crushable region which is deformed as the fastener becomes fully seated. This region insures that the joint is loaded with a predetermined force before the depth-sensitive driver disengages reducing the likelihood of overdriving or underdriving.
|
申请公布号 |
US4545270(A) |
申请公布日期 |
1985.10.08 |
申请号 |
US19840605512 |
申请日期 |
1984.04.30 |
申请人 |
ILLINOIS TOOL WORKS INC. |
发明人 |
DEWEY, GEORGE G. |
分类号 |
E04D3/36;F16B31/04;(IPC1-7):B25B23/00;E04B1/62 |
主分类号 |
E04D3/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|