P

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 patents
US4934465AJun 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 patents

SUOMEN YMPARISTOKESKUS

2 patents

(unassigned)

1 patent

SALMI PEKKA

1 patent

WAERTSILAE OY AB

1 patent

FAMILINGS OY

1 patent