Inventor
MCEWEN STEPHEN N
US27 patents
⚠️ This page may combine multiple inventors who share the name “MCEWEN STEPHEN N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HENRY FILTERS INC
22 patentsUS5300220AApr 5, 1994
Trough system for machine tool coolant collection flumes
HENRY FILTERS INC27 citations92
US5030346AJul 9, 1991
Pump for filtration system
HENRY FILTERS INC31 citations92
US6050788AApr 18, 2000
Pump with improved seal for filtration systems
HENRY FILTERS INC18 citations91
US5389256AFeb 14, 1995
Filter apparatus for machine tool coolant
HENRY FILTERS INC27 citations91
US4420868ADec 20, 1983
Trough manufacturing process
HENRY FILTERS INC30 citations90
US4421645ADec 20, 1983
Compact universal drum filter settler
HENRY FILTERS INC35 citations90
US5961847AOct 5, 1999
Filter apparatus with dual drive loops
HENRY FILTERS INC27 citations89
US6017446AJan 25, 2000
Floor mounted filtration system
HENRY FILTERS INC22 citations88
US5662812ASep 2, 1997
Trough system for machine tool coolant collection flumes
HENRY FILTERS INC16 citations82
US5637213AJun 10, 1997
Immersible filter drum unit and method for assembling thereof
HENRY FILTERS INC16 citations79
US5985145ANov 16, 1999
Shaft mounted gear box
HENRY FILTERS INC9 citations74
US5961828AOct 5, 1999
Compact drive system utilizing gear box with worm and cycloidal gears
HENRY FILTERS INC8 citations74
US5154584AOct 13, 1992
Pump for filtration systems
HENRY FILTERS INC18 citations74
US5135364AAug 4, 1992
Pump mounting apparatus for filtration system
HENRY FILTERS INC12 citations74
US4975184ADec 4, 1990
Horizontal removable pump for filtration systems
HENRY FILTERS INC10 citations74
US4900438AFeb 13, 1990
Pump mounting for a filtration system
HENRY FILTERS INC8 citations74
US5503520AApr 2, 1996
Pump for filtration systems
HENRY FILTERS INC5 citations72
US5158691AOct 27, 1992
Filter apparatus and method for filtering contaminants from machine tool coolant
HENRY FILTERS INC13 citations72
US4467633AAug 28, 1984
Trough, manufacturing process, and apparatus
HENRY FILTERS INC16 citations71
US4507061AMar 26, 1985
Check valve and pump receptor assembly
HENRY FILTERS INC9 citations70
US4428838AJan 31, 1984
Tubular filter structure
HENRY FILTERS INC18 citations68
US6629814B2Oct 7, 2003
Low profile pump
HENRY FILTERS INC2 citations62