Inventor
SCHIMMEL VERNON R
US9 patents
Patents
9 patentsUS4465257AAug 14, 1984
Concrete forming structure having a double hinge filler
SYMONS CORP28 citations91
US4055321AOct 25, 1977
Inside concrete corewall form with particular three-way hinge assemblies therefor
SYMONS CORP54 citations91
US4030694AJun 21, 1977
Composite concrete wall form unit with a special transition bolt
SYMONS CORP45 citations91
US4463925AAug 7, 1984
Concrete form structure including one-way escape hinge
SYMONS CORP10 citations72
US4433826AFeb 28, 1984
Adjustable long bolt
SYMONS CORP13 citations72
US4418884ADec 6, 1983
Double-hinge corner for a concrete forming structure
SYMONS CORP17 citations72
US4235560ANov 25, 1980
Transition bolt for clamping together the side rails of concrete wall form panels or the like
SYMONS CORP19 citations72
US4210306AJul 1, 1980
Safety key and locking means therefor for use with concrete wall form panels
SYMONS CORP18 citations72
US4228986AOct 21, 1980
Attachment for anchoring a safety belt
SYMONS CORP7 citations65