A tightening device for tightening a pipe connection, the tightening device comprising a frame (2), a reciprocating member (4) adapted to reciprocate between a first position and a second position relative to the frame (2) by pivoting about a first axis of rotation (101), a socket member (6) adapted for rotating a connector nut (52) of a pipe connection, the socket member (6) having an open side for enabling accessing a rotation axis of the socket member (6) from a radial direction, and a drive coupling between the reciprocating member (4) and the socket member (6). During use of the tightening device a reciprocating motion of the reciprocating member (4) between the first position and the second position provides unidirectional rotation of the socket member (6) in the first direction of rotation.

Surgical instruments and devices including drivers, inserters, and reducers. The driver includes a ratcheting mechanism configured to provide uni-directional motion when engaged. The inserter includes a rack, pinion, and cam system designed to secure an implant and release an implant in-situ. The reducer includes a geared system for persuading together surgical components and aligning misaligned vertebrae.

A medical device, and a ratchet for a medical device, include a torque-guiding element and a torque discharging element, between which a switchable toothed unit is arranged so that, in accordance with a switching position of the toothed unit, torque from the torque-guiding element is transferred to the torque discharging element, said toothed unit includes two torque transfer sleeves arranged in a nested manner and which are arranged and produced such that both can be brought into torque-transmitting contact with an intermediate sleeve.

The invention relates to a screwing tool for transmitting a set torque. Two torque-limiting arrangements (5, 7) are provided that are biased by the same spring element (9).

A cleanable reversible socket and driver for a hex head fastener having a driver shank with a hex shaped shaft, or otherwise splined, having a tool mounting end and a socket mounting end and a collar therebetween. A cleanable reversible socket is provided having a hex, or otherwise splined, passage therethrough rotationally lockable with the similarly shaped driver shank shaft. The socket is removably, nonrotatably mountable onto the driver shank shaft at the socket mounting end up to the collar having two different sized hex socket ends. A magnet on the socket mounting end of the driver shank is to be located at a bottom of one of the two hex socket ends when the socket is mounted on the driver shank to hold the hex head fastener in one of the socket ends.

A no switch, dual direction, ratcheting screwdriver (1), comprising a handle (60) incorporating a housing (50) encapsulated ratchet mechanism (11), further comprising a drive gear (30), attached to the housing (50) within the handle (60) and the driven gear (31) attached to the screwdriver shaft (20), the annular crown wheel type drive and driven gears (30, 31) having gear-engaging teeth (32) around their periphery. At rest a resilient member (40) prevents the drive and driven gears (30, 31) from engagement with each other. The operator engaging the screwdriver operating profile (26) into the corresponding screw head (81) naturally pushing the screwdriver handle (60) forward (FF), robustly engaging the fastener (80), further compressing the resilient member (40), robustly locking the drive and driven gears (30, 31) as one, the screw (80) being operated as required. As the operator relaxes the forward force (FF) during the reposition procedure (R) the drive and driven gears (30, 31) disengage from one another urged by the resilient portion (40) allowing a smooth minimum torque reverse procedure (R).

Surgical instruments and devices including drivers, inserters, and reducers. The driver includes a ratcheting mechanism configured to provide uni-directional motion when engaged. The inserter includes a rack, pinion, and cam system designed to secure an implant and release an implant in-situ. The reducer includes a geared system for persuading together surgical components and aligning misaligned vertebrae.

A cleanable reversible socket and driver for a hex head fastener having a driver shank with a hex shaped shaft, or otherwise splined, having a tool mounting end and a socket mounting end and a collar therebetween. A cleanable reversible socket is provided having a hex, or otherwise splined, passage therethrough rotationally lockable with the similarly shaped driver shank shaft. The socket is removably, nonrotatably mountable onto the driver shank shaft at the socket mounting end up to the collar having two different sized hex socket ends. A magnet on the socket mounting end of the driver shank is to be located at a bottom of one of the two hex socket ends when the socket is mounted on the driver shank to hold the hex head fastener in one of the socket ends.

A reaction arm for use with a torque generating device, the reaction arm including a reaction bar, and a body portion having a first internal diameter, and having formed on an internal surface thereof a female spline having a second internal diameter and a guide bushing having a third internal diameter, the first, second, and third internal diameter being distinctly sized.

A tightening device for tightening a pipe connection, the tightening device comprising a frame (2), a reciprocating member (4) adapted to reciprocate between a first position and a second position relative to the frame (2) by pivoting about a first axis of rotation (101), a socket member (6) adapted for rotating a connector nut (52) of a pipe connection, the socket member (6) having an open side for enabling accessing a rotation axis of the socket member (6) from a radial direction, and a drive coupling between the reciprocating member (4) and the socket member (6). During use of the tightening device a reciprocating motion of the reciprocating member (4) between the first position and the second position provides unidirectional rotation of the socket member (6) in the first direction of rotation.