发明名称 |
Fastening of a corrugated sheet in a roof construction or wall construction |
摘要 |
A corrugated sheet in a roof construction or wall construction is fastened to an underlying support structure by a screw extending through the sheet or wall construction and into the support structure. The screw includes a head, a washer, and a threading. The washer includes an upper metallic cap and an underlying sealant. |
申请公布号 |
US9091084(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US201214346042 |
申请日期 |
2012.09.20 |
申请人 |
Dissing A/S |
发明人 |
Dissing Claus Hornstrup |
分类号 |
F16B25/02;E04F13/21;E04D3/36;F16B25/00;F16B43/00;F16B35/00;F16B25/10 |
主分类号 |
F16B25/02 |
代理机构 |
Roberts Mlotkowski Safran & Cole, P.C. |
代理人 |
Roberts Mlotkowski Safran & Cole, P.C. ;Safran David S. |
主权项 |
1. A method for fastening a corrugated flexible bitumen sheet on an underlying support structure as part of a roof construction or wall construction, wherein the method comprises:
providing a screw with a head, a stem, and a threading as part of the stem; providing the threading with a rib having a pitch, a minor diameter between windings of the rib, and a major diameter around the rib, wherein the ratio between the pitch and the major diameter is between 0.31 and 0.39; wherein the threading has a pitch between 1.2 mm and 1.5 mm; providing the screw with a drill point at the tip of the screw and wherein a ratio between a length of the drill point relative to the diameter of the drill point is between 1.40 and 1.48; and driving the screw through the sheet and into the support structure without first forming a hole for the screw in the sheet. |
地址 |
Skanderborg DK |