Assignee
NORDBERG INC
US21 patents
Top patents by PatentIndex Score
US5806772ASep 15, 1998
Conical gyratory grinding and crushing apparatus
NORDBERG INC22 citations90
US4750681AJun 14, 1988
Apparatus for high performance conical crushing
NORDBERG INC43 citations90
US5602945AFeb 11, 1997
Thrust bearing for use in a conical crusher
NORDBERG INC36 citations89
US5029761AJul 9, 1991
Liner wear insert for vertical shaft impactor rotor
NORDBERG INC35 citations89
US4956078ASep 11, 1990
Feed prestratification attachment for high efficiency vibratory screening
NORDBERG INC54 citations89
US5031843AJul 16, 1991
Crushing coral limestone using water addition
NORDBERG INC25 citations85
US4756484AJul 12, 1988
Vertical shaft impact crusher with interchangeable crusher ring segments
NORDBERG INC43 citations85
US4750679AJun 14, 1988
Apparatus for energy efficient comminution
NORDBERG INC21 citations80
US6065698AMay 23, 2000
Anti-spin method and apparatus for conical/gyratory crushers
NORDBERG INC5 citations71
US5820045AOct 13, 1998
Conical Crusher having a single piece outer crushing member
NORDBERG INC16 citations71
US5769339AJun 23, 1998
Conical gyratory mill for fine or regrinding
NORDBERG INC10 citations71
US5738288AApr 14, 1998
Conical crusher having a single piece inner crushing member
NORDBERG INC8 citations71
US5850978ADec 22, 1998
Self tightening mantle retention assembly for gyratory conical crushers
NORDBERG INC15 citations68
US5372318ADec 13, 1994
Retention and positioning device for high energy absorbing pads
NORDBERG INC16 citations68
US5092529AMar 3, 1992
Apparatus for manipulation of impactor hammers
NORDBERG INC12 citations65
US5799885ASep 1, 1998
High reduction ratio crushing in conical/gyratory crushers
NORDBERG INC5 citations60
US5732895AMar 31, 1998
Conical crusher having fluid bellow support assemblies
NORDBERG INC3 citations60
US5042732AAug 27, 1991
Apparatus for high-yield low-waste conical crushing
NORDBERG INC6 citations60
US4967967ANov 6, 1990
Method of high crushing force conical crushing
NORDBERG INC5 citations60
US5762274AJun 9, 1998
Protection arrangement for a hopper seal on a fluid flushed conical crusher
NORDBERG INC3 citations57
US5110057AMay 5, 1992
Method of high performance jaw crushing
NORDBERG INC6 citations56