发明名称 |
Drywall to acoustical ceiling transition trims |
摘要 |
An elongate roll formed sheet metal molding, and method of its manufacture, for transitioning between a drywall ceiling and an acoustical tile ceiling, the molding have the general shape of an inverted tee formed by a horizontal drywall leg, a horizontal acoustical tile leg and a vertical leg between the horizontal legs, the drywall leg having a plurality of regularly spaced holes for receiving fasteners to attach the molding to a ceiling structure, a periphery of each hole being partially lanced in the sheet metal such that material from the hole forms a slug, the slug remaining attached to the sheet metal at a part of the hole, the slug being bent flat onto an area of the sheet metal adjacent the hole. |
申请公布号 |
US9234348(B1) |
申请公布日期 |
2016.01.12 |
申请号 |
US201414468388 |
申请日期 |
2014.08.26 |
申请人 |
USG INTERIORS, LLC |
发明人 |
Lehane James J.;Gulbrandsen Peder J.;Baker Chris C. |
分类号 |
E04B2/00;E04B9/24;B21B15/00;E04B9/00;E04B9/18;E04B9/28;E04B9/06 |
主分类号 |
E04B2/00 |
代理机构 |
Pearne & Gordon LLP |
代理人 |
Pearne & Gordon LLP |
主权项 |
1. An elongate roll formed sheet metal molding for transitioning between a drywall ceiling and an acoustical tile ceiling, the molding have the general shape of an inverted tee formed by a horizontal drywall leg, a horizontal acoustical tile leg and a vertical leg between the horizontal legs, the drywall leg having a plurality of regularly spaced holes for receiving fasteners to attach the molding to a ceiling structure, a periphery of each hole being partially lanced in the sheet metal such that material from the hole forms a slug, the slug remaining attached to the sheet metal at a part of the hole, the slug being bent flat onto an area of the sheet metal adjacent the hole, the hole and slug being rectangular and a side of the slug being attached to a side of the hole, and, wherein the slug resides in the plane of the horizontal drywall leg. |
地址 |
Chicago IL US |