Oversized wrenching head tension control bolt
OwnerKenneth Lohrinventor
Life of this patent
Estimating the term…
Abstract
A tension control bolt includes a shank, the shank including a threaded section and a breakaway section, and a bolt head, the bolt head constructed with a wrenching section and a flange section intermediate the wrenching section and the shank, the flange section having a generally circular bearing section, the diameter of the bearing section exceeding the distance between opposed flat wrenching surfaces of the wrenching section.
Claims23
A tension control bolt for joining structural steel members comprising:
- a head and a shank;
- said head comprising a wrenching section and a flange section;
- said flange section including a bearing surface;
- said bearing surface having a bearing surface diameter;
- said wrenching section having a plurality of wrenching surfaces, said wrenching surfaces perpendicular to said flange bearing surface;
- said wrenching section having a flat width comprising the distance between opposed wrenching surfaces;
- and
- said bearing surface diameter greater than said flat width.
said flat width less than said shank diameter. A tension control bolt for joining structural steel members having an oversized or short-slot hole, comprising:
- a head and a shank;
- said shank having a threaded section and a splined section;
- said threaded section intermediate said head and said splined section;
- said shank having a reduced diameter area intermediate said threaded section and said splined section;
- said head comprising a wrenching section and a flange section;
- said flange section including a bearing surface;
- said bearing surface having a bearing surface diameter;
- said wrenching section having a plurality of wrenching surfaces, said wrenching surfaces perpendicular to said flange bearing surface;
- said wrenching section having a flat width comprising the distance between opposed wrenching surfaces;
- and
- said bearing surface diameter greater than said flat width.
A tension control bolt and nut for joining structural steel members having an oversized or short-slot hole, comprising:
- said bolt comprising a head and a shank;
- said shank having a threaded section and a splined section;
- said nut having a threaded shaft for co-operatively engaging said shank threaded section;
- said shank threaded section intermediate said head and said splined section;
- said shank having a reduced diameter area intermediate said threaded section and said splined section;
- said oversized head comprising a wrenching section and a flange section;
- said flange section including a bearing surface;
- said bearing surface having a bearing surface diameter;
- said wrenching section having a plurality of wrenching surfaces, said wrenching surfaces perpendicular to said flange bearing surface;
- said wrenching section having a flat width comprising the distance between opposed wrenching surfaces;
- and
- said bearing surface diameter greater than said flat width.
Dependencies are inferred from the claim text.