Inventor
OPFER JOHN C
US24 patents
⚠️ This page may combine multiple inventors who share the name “OPFER JOHN C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
S & C ELECTRIC CO
23 patentsUS6040538AMar 21, 2000
Switchgear assembly
S & C ELECTRIC CO58 citations94
US5864107AJan 26, 1999
Switchgear assembly
S & C ELECTRIC CO19 citations90
US7626397B2Dec 1, 2009
High current capable circuit testing closer apparatus and method
S & C ELECTRIC CO13 citations79
US9576757B2Feb 21, 2017
Circuit interrupters with air trap regions in fluid reservoirs
S & C ELECTRIC CO3 citations73
US5600112AFeb 4, 1997
Bushing assembly with circuit interrupters including polyphase operating mechanism
S & C ELECTRIC CO17 citations73
US4683357AJul 28, 1987
Switch-operating mechanism with improved charging arrangement
S & C ELECTRIC CO12 citations73
US4324959AApr 13, 1982
Pre-insertion resistor mechanism for a circuit interrupting device
S & C ELECTRIC CO17 citations73
US4238657ADec 9, 1980
Switch operator condition and position indicator mechanism
S & C ELECTRIC CO7 citations73
US4237357ADec 2, 1980
Operating mechanism for a high-voltage switch
S & C ELECTRIC CO8 citations73
US6180902B1Jan 30, 2001
Fault interrupter and operating mechanism therefor
S & C ELECTRIC CO12 citations72
US5709553AJan 20, 1998
Flexible connector for high-current conductors
S & C ELECTRIC CO8 citations72
US4668848AMay 26, 1987
Alignment and centering arrangement for contacts of an interrupting device
S & C ELECTRIC CO7 citations72
US6127637AOct 3, 2000
Disconnect feature for interrupter
S & C ELECTRIC CO13 citations71
US6114642ASep 5, 2000
Switchgear assembly
S & C ELECTRIC CO8 citations71
US4203083AMay 13, 1980
Operating mechanism for a circuit interrupting device
S & C ELECTRIC CO7 citations68
USD722030SFeb 3, 2015
Pole unit housing for electrical switchgear
S & C ELECTRIC CO4 citations66
US6429393B1Aug 6, 2002
Current transfer arrangement for circuit interrupter
S & C ELECTRIC CO3 citations62
US5904577AMay 18, 1999
Separable, flexible electrical connection arrangement
S & C ELECTRIC CO4 citations62
US5298704AMar 29, 1994
Contact operating arrangement with shock-reducing feature for high-voltage apparatus
S & C ELECTRIC CO6 citations62
US6674027B2Jan 6, 2004
Operating arrangement for mechanism
S & C ELECTRIC CO2 citations60
US6628494B2Sep 30, 2003
Protective device and system
S & C ELECTRIC CO4 citations59
US7352265B2Apr 1, 2008
Manual trip control method and arrangement for multiple circuit interrupters
S & C ELECTRIC CO0 citations48
US7440251B2Oct 21, 2008
Multi-path switching configuration
S & C ELECTRIC CO0 citations41