Inventor
SPROTBERRY STEVEN J
US18 patents
⚠️ This page may combine multiple inventors who share the name “SPROTBERRY STEVEN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BTM CORP
15 patentsUS6059277AMay 9, 2000
Retracting power clamp
BTM CORP79 citations96
US5938259AAug 17, 1999
Pad for universal gripper
BTM CORP50 citations95
US5853211ADec 29, 1998
Universal gripper
BTM CORP79 citations95
US7694399B2Apr 13, 2010
Sheet fastening apparatus and method
BTM CORP35 citations92
USD557128SDec 11, 2007
Button shape for clinch joint
BTM CORP27 citations92
US7003861B2Feb 28, 2006
Tool assembly employing a flexible retainer
BTM CORP17 citations92
US7263831B2Sep 4, 2007
Air-to-oil intensifying cylinder
BTM CORP14 citations84
US7194859B1Mar 27, 2007
Intensifier
BTM CORP10 citations84
US6430795B1Aug 13, 2002
Composite urethane stripper for metal joining apparatus
BTM CORP11 citations74
US6785959B2Sep 7, 2004
Tool assembly employing a flexible retainer
BTM CORP11 citations73
US9931720B2Apr 3, 2018
Method of using a pierce nut insertion tool
BTM CORP3 citations72
US10328481B2Jun 25, 2019
Clinching punch and apparatus
BTM CORP3 citations64
US6996984B2Feb 14, 2006
Air-to-oil intensifying cylinder
BTM CORP2 citations63
US6757951B2Jul 6, 2004
Composite urethane stripper for metal joining apparatus
BTM CORP6 citations63
US7685925B2Mar 30, 2010
Intensifying cylinder
BTM CORP5 citations62