Inventor
HAPPEL ANDREW J
US6 patents
⚠️ This page may combine multiple inventors who share the name “HAPPEL ANDREW J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PRESS SEAL GASKET CORP
4 patentsUS7263746B2Sep 4, 2007
Expansion ring assembly with removable drive mechanism
PRESS SEAL GASKET CORP21 citations90
US7252293B2Aug 7, 2007
Two-part gasket for pipe-to-pipe connections
PRESS SEAL GASKET CORP34 citations89
US7677603B2Mar 16, 2010
Seal assembly for pipe-to-structure connections
PRESS SEAL GASKET CORP7 citations71
US7827665B2Nov 9, 2010
Gasket and mandrel assembly for pipe joints
PRESS SEAL GASKET CORP5 citations61