Matches 1 - 10 out of 10


Match Document Document Title
US20140262407 HYDRAULIC HAMMER HAVING IMPACT SYSTEM SUBASSEMBLY  
An impact system for a hydraulic hammer is disclosed. The impact system may include a piston, a sleeve disposed co-axial with the piston, and an accumulator membrane disposed external to the...
US20090283284 PNUEMATIC DRIFTER WITH REPLACEABLE FOOT PIECES  
Pneumatic drifters containing a drifter cylinder with removable feet and associated methods for using the pneumatic drifters are described. The removable feet are connected to feet pad of a...
US20080135270 Hydraulic Hammer  
A hydraulic hammer comprising a housing (10) with a longitudinal bore (12), cylinder sleeve (14) supported in the bore (12) a rear and cover (16) closing the bore (12), and a hammer piston (15)...
US20090321099 PERCUSSION DEVICE, DRILLING MACHINE INCLUDING SUCH A PERCUSSION DEVICE AND METHOD FOR CONTROLLING SUCH A PERCUSSION DEVICE  
A percussive device including, inside a machine housing (3), a reciprocally moveable percussive piston (2), the movement of which being controllable through a control valve (5), which is arranged...
US20090250234 Percussion Equipment Driven by a Pressurized Incompressible Fluid  
The equipment comprises a body (2) inside which there are a bore in which a tool (3) is slideably mounted and a stepped bore forming a cylinder for a stepped piston (1) which together with this...
US20120138328 Sleeve/Liner Assembly And Hydraulic Hammer Using Same  
A hydraulic hammer includes a powercell housing that defines a hydraulic inlet and a hydraulic outlet. A machine mount that defines a plurality of pin receiving bores is attached to the powercell...
US20170001294 HYDRAULIC HAMMERING DEVICE  
A hydraulic hammering device that uses a scheme in which a front chamber is switched into communication with a low-pressure circuit when a piston advances, wherein occurrences of “galling” to the...
US20160176033 HYDRAULIC HAMMER HAVING VARIABLE STROKE CONTROL  
A variable stroke control system for a hydraulic hammer is disclosed. The variable stroke control system may include an inlet groove formed around a piston associated with the hydraulic hammer and...
US20160160467 Pile-Driver and Method for Application Thereof  
The present invention relates to a pile-driver, comprising a support member arranged or arrangeable in transverse direction at or on a pile, a liquid chamber which is bounded on the underside by...
US20160151903 HAMMER HAVING PISTON SLEEVE WITH SPIRAL GROOVES  
A sleeve is disclosed for use with a hammer. The sleeve may have a generally cylindrical body with a first end and a second end. The sleeve may also have a plurality of channels spiraling at least...

Matches 1 - 10 out of 10