Matches 1 - 13 out of 13

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US20090301745 Mechanical trigger arrangement  
The present invention relates to an arrangement for the repeated mechanical triggering of various types of downhole equipment, the arrangement comprising a spring element (4) and a string section...
US20140054090 MECHANICAL FORCE GENERATOR FOR A DOWNHOLE EXCITATION APPARATUS  
An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass (“rotatable...
US20100300719 TOOL  
Disclosed is a tool (5) comprising a cam track (A) and cam follower means (B), wherein the cam track (A) comprises a first cam track wall means (15) and the cam follower (B) comprises a first cam...
US20090056967 HAMMER  
A hammer comprising a housing 2; a motor mounted within the housing; a tool holder 8 rotatably mounted on the housing 2 for holding a cutting tool; striker mounted in a freely slideable manner...
US20100044063 Vibratory and Impact Connector for a Power Tool  
A vibratory and impact connector for a power tool is provided with a spring, a first drive rod, a drive ring and a second drive rod which are sequentially received in an outer cylinder. The first...
US20130248217 HANDHELD MACHINE TOOL, IN PARTICULAR A HAMMER DRILL  
A handheld machine tool has a drive motor for driving a tool holder, in which a tool is able to be accommodated. In addition, a cam-action mechanism for generating a hammer function is provided,...
US20140027140 HANDHELD MACHINE TOOL COMPRISING A MECHANICAL STRIKING MECHANISM  
A handheld machine tool including a mechanical striking mechanism, which has a striking member equipped with at least one drive cam and an output shaft equipped with at least one output cam, which...
US20090266572 HAND-HELD POWER TOOL, IN PARTICULAR A ROTARY HAMMER AND/OR CHISEL HAMMER  
The invention relates to a hand power tool, in particular a drill hammer and/or chipping hammer, comprising a hammer unit (10a; 10b) for producing a pulse in the direction of a hammer axis (12a;...
US20100089603 TOOL  
There is disclosed a tool (5) comprising a cam track (A) and cam follower means (B), wherein a width (WA) of at least a portion of the cam track (A) is greater than a width (WB) of the cam...
US20140338942 Ball Deflecting Chamfer  
A cam shaft is disclosed having an asymmetric chamfer for guiding a ball bearing deeper into a cam shaft groove to avoid ball loss when an immediate deceleration force is applied. The chamfer...
US20090223691 Impact tool  
It is an object of the invention to provide a technique that contributes to further improvement of an impact tool. A representative impact tool includes a motor, a tool body that houses the motor,...
US20110203824 IMPACT DEVICE  
An impact device includes a housing, a motor supported by the housing, a stationary shaft, and a rotating transmission member supported on the stationary shaft for rotation. The rotating...
US20120000684 OIL PULSE ROTARY TOOL  
A sleeve body with bearings interposed between the sleeve body and a center shaft portion is integrally coupled to an oil pulse generator. A coupling body is rotatable together with the output...
Matches 1 - 13 out of 13