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| Number | Title | Issue Date |
| 8122789 | Device for tightening of a gland nut A device (1) for the adjustment of a gland nut (2), provided with a plurality of gripping means (8) through which said gland nut (2) can be caused to rotate, comprising an engaging member (3) and actuator means (25, 26) to c... | 02/28/2012 |
| 8117947 | Power ratchet assembly A power ratchet assembly has a handle, a power shaft, a sleeve, a crankshaft, multiple planet gears, multiple pins, two support bearings and a ratchet head device. The crankshaft has an outer surface. The support bearings are securely mounted around the outer surfac... | 02/21/2012 |
| 8096211 | Digital power torque wrench of indirect transmission The present invention relates to a digital power torque wrench of indirect transmission, which is composed of an eccentric driving module, a sensing module, a ratchet module and a control module. The eccentric driving module is used for transmitting power to the sen... | 01/17/2012 |
| 8051746 | Ratchet wrench with collar-actuated reversing mechanism A ratchet wrench has a handle and a ratchet housing that both extend along a first axis. A drive body is connected for rotation relative to the ratchet housing about a second axis, perpendicular to the first axis. A yoke substantially encircles the body and is conne... | 11/08/2011 |
| 8024996 | Power wrench The invention relates to a hydraulic power wrench comprising a ratchet lever (16) driven by a hydraulic cylinder. According to the invention, said power wrench is provided with a friction brake (20) which operates continuously between the housing (1... | 09/27/2011 |
| 7926389 | Hydraulic torque wrench with central strain decoupled global hose connect swivel Centrally mounted in a strain decoupling fashion on a hydraulic torque wrench is a hose connect swivel. A base ring of the swivel features a first fluid transmitting joint that is fluid transmitting connected with axial studs extending from the base ring into mating... | 04/19/2011 |
| 7793568 | Ratchet mechanism A ratchet wrench assembly having a spring assembly positioned in the ratchet head. The ratchet wrench has a handle portion, a head portion with a yoke having yoke teeth, a ratchet mechanism drive body positioned in the head portion, and one or more pawls positioned ... | 09/14/2010 |
| 7765895 | Fluid-operated torque wrench for and method of tightening or loosening fasteners A fluid-operated torque wrench for tightening or loosening a fastener has a housing having two housing portions including a cylinder portion and a driving portion, cylinder-piston means arranged in the cylinder portion and movable along a first axis, a lever-type ra... | 08/03/2010 |
| 7735398 | Rechargeable motor-driven ratchet wrench having power-off protection A rechargeable motor-driven ratchet wrench having power-off protection of the present invention includes a motor, a rechargeable battery and a power-off protection device. When the loaded current of the motor exceeds a set default value of a reference circuit, the p... | 06/15/2010 |
| 7497147 | Torque tool for tightening or loosening connections, and method of tightening or loosening the same A torque tool for tightening or loosening connections has a driving element engageable with a turnable part of the connection for turning the turnable part of the connection for tightening or loosening the connection and turnable about an axis, and a power drive con... | 03/03/2009 |
| 7454997 | Axial pawl ratchet mechanism An axial pawl ratcheting mechanism is provided that may be used for a wrench and comprises a first disc including axial gear teeth on a first side providing for ratcheting in a first direction. A second disc is provided having axial gear teeth and peripheral gear te... | 11/25/2008 |
| 7451672 | Link attachment to torque wrench A link attachment to a torque wrench providing coaxial action in the reaction turning forces in opposite directions at equal torque, the link attachment has a housing, a ratchet mechanism including a ratchet engageable with a fastener and a drive plate turning the r... | 11/18/2008 |
| 7413025 | Torque tool A torque tool comprises a torque converter, a power tool for actuating the converter and an attachment adapter, interposed between the torque converter and the power tool, for coaxially and firmly interconnecting the former to the latter. The power tool, having its ... | 08/19/2008 |
| 7392726 | Ratchet wrench and method of assembling the same In a ratchet wrench, a frictional force generation mechanism including a first guide bush and a disc spring is attached to a shank with a locking pin to form a shank assembly. Spring force of the disc spring acts only on the inside of the shank assembly. The shank a... | 07/01/2008 |
| 7340983 | Spanner with prevention of disengagement of fasteners A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving s... | 03/11/2008 |
| 7331257 | Returning assembly of spanner A returning assembly of a spanner includes a driving portion having a receiving space for receiving a driving head, a switch unit and an ejecting unit having a truncated conic shape; a radial direction of the driving head having a slightly inclined buckling surface;... | 02/19/2008 |
| 7328884 | Motor drive for a camper jack A motor drive for camper jacks or screw jacks that rapidly operates the screw jack between a retracted position and an extended no load position. A manual operator then operates the screw jack between the extended no load position and an extended loaded position. Th... | 02/12/2008 |
| 7322430 | Apparatus and method for reducing required torque A method of reducing the torque required to provide relative rotation of two connected members includes providing impacts at or adjacent the connection between the two members at a rate of at least two impacts per second. An apparatus for reducing the torque require... | 01/29/2008 |
| 7318365 | Multistage socket A multistage socket including a main body having a disc section. Multiple fixing blocks are disposed on one face of the disc section at equal angular intervals. A movable block is arranged between each two adjacent fixing blocks. The inner end faces of the movable b... | 01/15/2008 |
| 7306050 | Toothed ring connecting structure of a power tool A toothed ring connecting structure of a power tool, including: a main body having a first opening and a second opening; a motor accommodated in the main body and having an output shaft extending from a first end of the motor; a fixing cap having a body section, a f... | 12/11/2007 |
| 7261018 | Power tool A power tool has a housing having a drive portion for turning a fastener to tighten or loosen the fastener, the drive portion having two opposite sides spaced from one another in one direction and two connecting elements spaced from one another in another direction ... | 08/28/2007 |
| 7246543 | Multi-function adjustable wrench A multiple function adjustable wrench comprising: a shank 18 having a first end 16 with a fixed jaw 12, a adjustable jaw 10, and a adjusting screw 14. The adjusting screw 14 moves the adjustable jaw 10 toward and away... | 07/24/2007 |
| 7237621 | Driving device A driving unit comprises a pneumatic head for being combined to a pneumatic tool; a front end of the pneumatic head being installed with a push rod; a driving unit having a slender driving rod at a front end thereof; the push rod serving to push the driving unit; an... | 07/03/2007 |
| 7237460 | Biasing arrangement for a pawl of a reversible ratchet-type wrench A reversible ratchet-type wrench includes a handle and a head extended from the handle and having a hole. A web is defined between the handle and the head, and a cavity is defined in the web and communicated with the hole. The web further includes a compartment havi... | 07/03/2007 |
| 7234372 | Reversible ratcheting tool with a smaller head and improved driving torque A ratcheting tool includes a handle and a head with a compartment. A drive member includes a first end extended beyond the compartment, a second end extended beyond the compartment, and a gear wheel formed between the first end and the second end. The gear wheel is ... | 06/26/2007 |
| 7231851 | Reversible ratcheting tool A ratcheting tool has a head and a handle attached to the head. The head rotatably receives a gear ring and receives a pawl that is in operative engagement with the gear ring. A housing disposed in the head receives a spring that is in operative engagement with the ... | 06/19/2007 |
| 7210379 | Rigging tool A rigging tool for use with a turnbarrel for joining ends of cables together in which the rigging tool has a first gripping member with a receptacle suitable for receiving a terminal end of a cable therein, a second gripping member having a receptacle suitable for r... | 05/01/2007 |
| 7188552 | Holding socket for a threaded fastener A holding socket for a fastener having a nut arrangeable on a threaded element, and a washer located between the nut and an object, the holding socket has a body having two opposite ends with a first end connectable to a part of a power tool and a second end which i... | 03/13/2007 |
| 7171873 | Tensionless power ratchet wrench assembly A power ratchet wrench assembly having a tensionless head wherein operation of the ratchet mechanism does not require a tensioning means for applying a frictional force against the ratchet mechanism to inhibit rotational movement of the ratchet mechanism. In one emb... | 02/06/2007 |
| 7168341 | Torque wrench A torque wrench for applying torque to a component (21) is described. The torque wrench has an engaging member (18) for engaging the component (21) to be rotated about an axis (22) and a ratchet member (25) connected to the engagin... | 01/30/2007 |
| 7168340 | Ratchet wrench having constant drive Ratchet wrenches are provided that allow for drive on both the forward and return strokes of the ratchet handle. A combination ring gear, sun gear and planetary gear system is used in combination with a drive pawl arrangement to achieve power drive in both direction... | 01/30/2007 |
| 7146880 | Torque wrench system An improved hydraulic wrench including a one-piece housing in which one end of the housing forms internally a cylinder for hydraulically reciprocating power and the second end of the housing includes an opening in which a torque arm/ratchet mechanism can be pivotall... | 12/12/2006 |
| 7137318 | Ratchet-based, torqued-enhanced fastener tool A ratchet-based, torque-enhanced fastener tool for tightening and loosening nuts, bolts, lug nuts and other fasteners includes a main housing and a handle attached to the main housing. A trigger is movably connected so that it can be moved in a reciprocal manner. A ... | 11/21/2006 |
| 7134509 | Portable power tool with rotating output shaft and overload protection A portable power tool is provided which includes a rotation motor (11), an output shaft (14), a gearing (13) and a drive spindle (12; 112) connecting the gearing (13) to the motor (11). A drive line arresting lock device ( | 11/14/2006 |
| 7125213 | Washer, fastener provided with a washer, method of and power tool for fastening objects A washer has a body having an axis and provided with a first bearing face surface located at one axial side and adapted to cooperate with a nut, a second bearing face surface located at an opposite axial side and adapted to cooperate with an object, at least one thi... | 10/24/2006 |
| 7121167 | Flat head reversible power ratchets A flat headed, reversible power ratchet of relatively small size which uses integral bosses and apertures in its housing to locate and control the movement of its yoke and driving gears on bosses integral to the housing with the driving gear mounted in a bore within... | 10/17/2006 |
| 7117764 | Screwed device tightening/untightening tool A tool for tightening and untightening screwed devices, such as bolts for fixing engines (10) to struts (12) on aircraft, comprises a hydraulic wrench (20), a hydraulic pump (22), preferably manual, at a distance from the wrench, and a tu... | 10/10/2006 |
| 7104163 | Tool kit A tool kit includes a number of wrenches of various sizes and a corresponding number of go-through type sockets. Each wrench includes a handle with a box end with a nominal size. Each socket includes an engaging portion for engaging with the box end of a correspondi... | 09/12/2006 |
| 7096569 | Torque guarantee system A system and method for guaranteeing that a torque application operation proceeds in a predetermined order. The system and method of the present invention can be used in processes that require the completion of one or more preparatory or post-torque application proc... | 08/29/2006 |
| 7089829 | Multi-functional ratchet wrench A multi-functional ratchet wrench has a wrench body, a ratchet, a pawl, a trigger, a lug connector and a socket connector. The wrench body has a head in which the ratchet is rotatably mounted and the pawl control the direction of rotation when moved by the trigger c... | 08/15/2006 |
