Inventor

SYGNATOR HENRY A

US22 patents

⚠️ This page may combine multiple inventors who share the name “SYGNATOR HENRY A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SYGNATOR HENRY A

ILLINOIS TOOL WORKS

Steel fastener having grooved shank

Fastener and building assembly comprising workpiece, substrate, and fastener

Collated nails having tape recesses

Anti-stripping sheet metal screw

Aluminum roof panel fastener

Extruding and tapping screw and blank for manufacture of such screw

Fastener and building assembly comprising workpiece, substrate, and fastener

Apparatus for forming a wire nail

Wire nail, strip of collated wire nails, and related apparatus

Drill screw and cutters for making same

Tool gripping fastener

Drill point milling machine and method

Rotary sheet metal fastener and fastening system

Method of forming a head on a fastener

Method and apparatus for forming a head on a fastener and a fastener formed therefrom

Machine and methods for collating wire nails having shank keyways

Self-tapping stainless steel screw and method for producing same

Method of manufacturing a drill screw

Drill screw with protective burrs

Extruding and tapping screw and blank for manufacture of such screw

Method of manufacturing a drill screw

SYGNATOR HENRY A

Wire nail