Inventor
SALMI PEKKA
28 patents
⚠️ This page may combine multiple inventors who share the name “SALMI PEKKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAMPELLA OY AB
17 patentsUS4934465AJun 19, 1990
Arrangement for the axial bearing of a drilling machine
TAMPELLA OY AB22 citations81
US4023626AMay 17, 1977
Self-adaptive hydraulic rock drill
TAMPELLA OY AB27 citations81
US3979944ASep 14, 1976
Hydraulic drill, in particular a rock drill
TAMPELLA OY AB32 citations81
US4028995AJun 14, 1977
Hydraulic striking apparatus
TAMPELLA OY AB26 citations79
US4582145AApr 15, 1986
Pressure-medium driven percussion device
TAMPELLA OY AB25 citations76
US4971158ANov 20, 1990
Method in rotary drilling and rotary drilling apparatus
TAMPELLA OY AB18 citations74
US4366868AJan 4, 1983
Rock drill apparatus
TAMPELLA OY AB16 citations74
US4289209ASep 15, 1981
Impact device with fluid tool rotation motor
TAMPELLA OY AB18 citations74
US4702326AOct 27, 1987
Coupling arrangement for a drill shank of a percussion drilling machine
TAMPELLA OY AB15 citations73
USD291087SJul 28, 1987
Wedge for a drill shank of a percussion drilling machine
TAMPELLA OY AB10 citations73
USD282666SFeb 18, 1986
Shank adaptor for a rock drill
TAMPELLA OY AB9 citations73
US4369848AJan 25, 1983
Control system for a rock drill
TAMPELLA OY AB16 citations73
US4355691AOct 26, 1982
Hydraulic drilling apparatus
TAMPELLA OY AB16 citations71
US4343227AAug 10, 1982
Hydraulic percussion apparatus
TAMPELLA OY AB7 citations70
US5050283ASep 24, 1991
Arrangement for handling drill rods in a rock drilling unit or the like
TAMPELLA OY AB10 citations65
US3939943AFeb 24, 1976
Lubrication of piston operated drill with central flushing tube
TAMPELLA OY AB6 citations63
US4736806AApr 12, 1988
Continuously revolving percussion drilling machine
TAMPELLA OY AB5 citations62
KVAERNER MASA YARDS OY
5 patentsUS5403216AApr 4, 1995
Ship propulsion arrangement
KVAERNER MASA YARDS OY87 citations91
US5218917AJun 15, 1993
Icebreaking ship
KVAERNER MASA YARDS OY39 citations90
US6062925AMay 16, 2000
Service vessel operating method
KVAERNER MASA YARDS OY21 citations89
US5513149AApr 30, 1996
Sound damping arrangement
KVAERNER MASA YARDS OY19 citations84
US6046959AApr 4, 2000
Sound source arrangement
KVAERNER MASA YARDS OY9 citations66