Inventor
FREJBORG FREY
US10 patents
⚠️ This page may combine multiple inventors who share the name “FREJBORG FREY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AHLSTROEM OY
8 patentsUS5192438AMar 9, 1993
Rotating element for screening apparatus with a contour surface produced by a plurality of protrusions in the direction of the axial length of the rotor
AHLSTROEM OY27 citations92
US5147543ASep 15, 1992
Rotating element for a screening apparatus with a contour surface produced by a plurality of protrusions in the direction of the axial length of the cylindrical rotor
AHLSTROEM OY20 citations81
US4950402AAug 21, 1990
Rotating element for a screening apparatus with a contour surface
AHLSTROEM OY12 citations81
US4880540ANov 14, 1989
Pulp screening apparatus
AHLSTROEM OY14 citations81
US4836915AJun 6, 1989
High flow capacity barrier type screening apparatus
AHLSTROEM OY16 citations81
US4776957AOct 11, 1988
Rotating element for a screening apparatus with a contour surface
AHLSTROEM OY17 citations80
US4676903AJun 30, 1987
Screening apparatus
AHLSTROEM OY15 citations80
US4264438AApr 28, 1981
Screen drum and a method for its manufacture
AHLSTROEM OY18 citations73