Inventor
PFEFFERLE DEAN P
US13 patents
⚠️ This page may combine multiple inventors who share the name “PFEFFERLE DEAN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SNAP ON TOOLS CORP
4 patentsUS5369959ADec 6, 1994
Non-condensable purge control for refrigerant recycling system
SNAP ON TOOLS CORP22 citations89
US5412955AMay 9, 1995
Non-condensable purge control for refrigerant recycling system
SNAP ON TOOLS CORP16 citations78
US7293419B1Nov 13, 2007
Refrigerant transfer system and method
SNAP ON TOOLS CORP6 citations72
US7210300B2May 1, 2007
Refrigerant charging system and method with cartridges
SNAP ON TOOLS CORP9 citations72
SNAP ON TECH INC
3 patentsUS6442963B1Sep 3, 2002
Non-condensable purge technique using refrigerant temperature offset
SNAP ON TECH INC41 citations91
USD465895SNov 19, 2002
Cart-housing for automotive service equipment
SNAP ON TECH INC29 citations89
US6427457B1Aug 6, 2002
Refrigerant recycling system with automatic detection of optional vacuum pump
SNAP ON TECH INC14 citations83
SPX CORP
3 patentsUS7905095B2Mar 15, 2011
System for refrigerant charging with constant volume tank
SPX CORP12 citations82
US7845178B1Dec 7, 2010
A/C maintenance system using heat transfer from the condenser to the oil separator for improved efficiency
SPX CORP8 citations82
US7762089B2Jul 27, 2010
Refrigerant charging system and method using vapor-phase refrigerant
SPX CORP6 citations71