45502 ⎘
Portable percussive tools with fluid-pressure drive, , e.g. having several percussive tool bits operated simultaneously; Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
HYDRAULIC IMPACT MECHANISM FOR USE IN EQUIPMENT FOR PROCESSING ROCK AND CONCRETE
#2Hydraulic hammer with dampening accumulator
#3Rock breaking machine and method for storing pressure energy
#4Rotary-percussive hydraulic perforator provided with a stop piston and a braking chamber
#5Hydraulic rotary-percussive hammer drill provided with a stop piston
#6Rock drilling arrangement and machine
#7Fluid pressure striking device
#8Rotary-percussive hydraulic perforator provided with a control chamber permanently connected to a low-pressure accumulator
#9METHOD FOR SETTING THE STRIKING STROKE OF A STRIKING PISTON OF A PERCUSSION APPARATUS, AND A PERCUSSION APPARATUS FOR IMPLEMENTING SAID METHOD
#10Two-piston hydraulic striking device
#11Percussion apparatus provided with a centering device
#12Hydraulic striking device
#13Apparatus for generating impulse-dynamic process forces
#14Hydraulic hammering device
#15Accumulator
#16Percussion apparatus
#17HYDRAULIC BREAKER
#18Pressure indicator for hydraulic hammer
#19Hydraulic hammer having co-axial accumulator and piston
#20Hammer assembly
#21Hydraulic hammering device
#22Hydraulic hammer
#23Method for manufacture of a HIP consolidated component and a HIP:ed component comprising a wear resistant layer
#24Hydraulic hammer having variable stroke control
#25Hammer having piston sleeve with spiral grooves
#26CHARGING SYSTEM FOR HYDRAULIC HAMMER
#27Accumulator membrane for a hydraulic hammer
#28Breaking device
#29Pressure monitoring device
#30Device for pressure monitoring
#31Hydraulic hammer having delayed automatic shutoff
#32Pressure accumulator and percussion device
#33Surge accumulator for hydraulic hammer
#34Method for switching the striking stroke of a striking piston of a percussion device
#35Accumulator
#36Hydraulic hammer having impact system subassembly
#37Hydraulic hammer having co-axial accumulator and piston
#38Accumulator membrane for a hydraulic hammer
#39Variable volume accumulator
#40Flow control screen for use with hydraulic accumulator, hydraulic hammer using same, and manufacturing method
#41Device for rock and-concrete machining
#42Hydraulic impact mechanism for use in equipment for treating rock and concrete
#43Accumulator membrane unit, method for production thereof and rock drilling machine including such an accumulator membrane unit
#44Method and device for rock drilling
#45Hydraulic pick
#46Rock drilling method and rock drilling machine
#47Percussion equipment driven by a pressurized incompressible fluid
#48Working machine
#49Water powered impulsive unit
#50Rock breaking device, protection valve and a method of operating a rock breaking device
#51Hydraulic impact mechanism
#52Hydraulic pressure accumulator
#53Hydraulic breaking hammer
#54Pressure regulating device for a percussive hydraulic apparatus
#55Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device
#56Impact device and method for generating stress pulse therein
#57Hydraulic hammer having a sealing bushing
#58Impact tool