52 results about "Compression lock" patented technology

A polyaxial orthopedic device for use with rod implant apparatus includes a screw having a curvate head, a two-piece interlocking coupling element which mounts about the curvate head, and a rod receiving cylindrical body member having a tapered socket into which both the screw and the interlocking coupling element are securely nested. The interlocking coupling element includes a socket portion which is slotted and tapered so that when it is radially compressed by being driven downwardly into the tapered socket in the cylindrical body it crush locks to the screw. The securing of the rod in the body member provides the necessary downward force onto the socket portion through a contact force on the top of the cap portion. Prior to the rod being inserted, therefore, the screw head remains polyaxially free with respect to the coupling element and the body. In a preferred embodiment, the cap portion and the socket portion are formed and coupled in such a way that when the cap portion is compressed toward the socket portion, there is an additional inward radial force applied by the cap portion to the socket portion, thereby enhancing the total locking force onto the head of the screw.

A polyaxial bone anchor has a locking element shaped and configured to allow an anchoring member (e.g., a screw or hook) to polyaxially rotate at large angles about a central axis of the bone anchor before compression locking the anchoring member within an anchor head.

An artificial disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, separated by a ball and socket joint that includes a ball compression locked to a post extending from one of the baseplates. The ball is captured within a curvate socket formed in a peak of a convex structure attached to the other of the baseplates. The socket is formed by opposing curvate surfaces, one on the convex structure and one on the other of the baseplates. While the ball angulates freely in the socket, the rotation of the ball in the socket has a limited range due to interference between a protrusion on the convex structure that extends into the socket and a curvate recess on the ball. The ball and socket joint therefore permits the baseplates to rotate relative to one another through a limited range and also angulate relative to one another.

A folding device for a scooter has a first extension attached to the head tube, a second extension attached to the base to partially receive the first extension, a hook pivotally received in the first extension and a compression lock having a shaft inserted through the first extension and the second extension and detachably connected with the hook, such that the user is able to use the connection of the hook to the shaft and the abutment of the eccentric head of the compression lock to the outer surface of the first extension to form a double safety feature.

An artificial disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, separated by a ball and socket joint that includes a ball compression locked to a post extending from one of the baseplates. The ball is captured within a curvate socket formed in a peak of a convex structure attached to the other of the baseplates. The socket is formed by opposing curvate surfaces, one on the convex structure and one on the other of the baseplates. While the ball angulates freely in the socket, the rotation of the ball in the socket has a limited range due to interference between a protrusion on the convex structure that extends into the socket and a curvate recess on the ball. The ball and socket joint therefore permits the baseplates to rotate relative to one another through a limited range and also angulate relative to one another.

An artificial intervertebral disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, uses a semispherical, bored bearing that is secured to the baseplates with compression locking posts and one or more retaining caps. The compression locking posts extend through the bearing bore and baseplate apertures such that the bearing is between the baseplates' inwardly facing surfaces. Retaining caps are attached to the compression locking posts, securing the baseplates to the bearing. Bearing surfaces on the inwardly facing side of each baseplate allow each baseplate to rotate relative to the bearing, however, rotation of each baseplate is limited by the interference of each baseplate and its respective retaining cap. Rotation of the baseplates about the longitudinal axis of the spine can be limited via a notch in the retaining caps and a groove in the baseplates, or vice versa.

An artificial intervertebral disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, uses a semispherical, bored bearing that is secured to the baseplates with compression locking posts and one or more retaining caps. The compression locking posts extend through the bearing bore and baseplate apertures such that the bearing is between the baseplates' inwardly facing surfaces. Retaining caps are attached to the compression locking posts, securing the baseplates to the bearing. Bearing surfaces on the inwardly facing side of each baseplate allow each baseplate to rotate relative to the bearing, however, rotation of each baseplate is limited by the interference of each baseplate and its respective retaining cap. Rotation of the baseplates about the longitudinal axis of the spine can be limited via a notch in the retaining caps and a groove in the baseplates, or vice versa.

A compression lock on a connector for a shelving post has upper and lower, mating collar parts having distal ends encircling more than 180 degrees of the post but separated by a gap through which the post can pass. Each distal end has an axially extending projection with a rounded end and a recess adjoining the projection. The projections of one collar part mate with the recesses of the other collar part to interlock the collar parts around a compression sleeve and form a frusto-conical inner surface that wedges the a mating sleeve against the post to affix a shelf attached to the connector.

A locking arrangement for a door system of a transit vehicle includes a combination of a lock mechanism and an electromagnetic brake. The lock mechanism enables positive locking of at least one door but does not require substantial contact between moving and stationary lock elements. The lock mechanism is connected with the manual release means for door opening during an emergency. The electromagnetic brake maintains door seal compression in the closed and locked condition which improves sealing capabilities and provides for reliable lock mechanism operation. Such combination provides locking redundancy and meets various requirements regarding annunciation and manual release operation.

A compression lock on a connector for a shelving post has upper and lower, mating collar parts having distal ends encircling more than 180 degrees of the post but separated by a gap through which the post can pass. Each distal end has an axially extending projection with a rounded end and a recess adjoining the projection. The projections of one collar part mate with the recesses of the other collar part to interlock the collar parts around a compression sleeve and form a frusto-conical inner surface that wedges the a mating sleeve against the post to affix a shelf attached to the connector.

A compression lock on a connector for a shelving post has upper and lower, mating collar parts having distal ends encircling more than 180 degrees of the post but separated by a gap through which the post can pass. Each distal end has an axially extending projection with a rounded end and a recess adjoining the projection. The projections of one collar part mate with the recesses of the other collar part to interlock the collar parts around a compression sleeve and form a frusto-conical inner surface that wedges the a mating sleeve against the post to affix a shelf attached to the connector. A tab allows removal of a locking connector, with the connectors stamped out of sheet metal and bent into the frusto-conical shape.

A locking arrangement for a door system of a transit vehicle includes a combination of a lock mechanism and an electromagnetic brake. The lock mechanism enables positive locking of at least one door but does not require substantial contact between moving and stationary lock elements. The lock mechanism is connected with the manual release means for door opening during an emergency. The electromagnetic brake maintains door seal compression in the closed and locked condition which improves sealing capabilities and provides for reliable lock mechanism operation. Such combination provides locking redundancy and meets various requirements regarding annunciation and manual release operation.

The invention provides a dynamic locking plate for treating a fracture of a neck of a femur. The dynamic locking plate comprises a tuberosity supporting plate and three locking screw holes, wherein the inner surface of the tuberosity supporting plate is bent to be matched with the lower part of a greater trochanter of the femur in shape; the positions of the three locking screw holes including a first locking screw hole, a second locking screw hole and a third locking screw hole in the tuberosity supporting plate are based on a locating point A at the middle of the tuberosity supporting plate, and distributed around the locating point A; the first locking screw hole, the second locking screw hole and the third locking screw hole are distributed to form a triangle in the tuberosity supporting plate; axes of the three locking screw holes are parallel; based on a vertical line AO of the tuberosity supporting plate where the locating point A is positioned, the axial lines of the three locking screw holes are inclined upwards and form longitudinal included angles theta with the vertical line AO, which are equal to 15-35 degrees. The locating point A is located within the range that the geometric center of the tuberosity supporting plate is taken as a center, and the diameter is 4 mm. The dynamic locking plate enables the broken end of a fractured bone to be subjected to micro-movement and compression, and adapts to dynamic characteristics of bone growth when improving the internal fixation stability of the neck of the femur, so as to be more beneficial to healing of the broken end of the fractured bone.

A compression lock on a connector for a shelving post has upper and lower, mating collar parts having distal ends encircling more than 180 degrees of the post but separated by a gap through which the post can pass. Each distal end has an axially extending projection with a rounded end and a recess adjoining the projection. The projections of one collar part mate with the recesses of the other collar part to interlock the collar parts around a compression sleeve and form a frusto-conical inner surface that wedges the a mating sleeve against the post to affix a shelf attached to the connector. A tab allows removal of a locking connector, with the connectors stamped out of sheet metal and bent into the frusto-conical shape.

A protective case for large objects including a lock housing formed from a first section and a second section, both of the sections including at least one external subsection and at least one internal subsection configured to telescope inside the external subsection; and an extension lock comprising a lock housing and a compression lock, the lock housing including a screw-threaded channel, and the compression comprising at least one screw-threaded shaft with a compressive component on the interior end and a lock handle on the exterior end, the screw-threaded shaft configured to matingly engage with the screw-threaded channel of the lock housing; the compression lock configured to descend in the lock housing and compressingly lock the internal subsection in an extended position upon locking rotation of the compression lock; and the compression lock configure to ascend in the lock housing upon unlocking rotation of the cam latch.

The invention discloses a combined compression locking type anterior cervical resetting fixture, which comprises a main board (1), an auxiliary board (2), a locking board screw (3), an internal screw (4) and an external screw (5), wherein an internal screw hole is formed in the head part of the main board (1); a locking board screw hole is formed in the body part of the main board (1); an internal screw hole is formed in the head part of the auxiliary board (2); a locking board screw hole is formed in the body part of the auxiliary board (2); the main board (1) and the auxiliary board (2) are mutually overlapped and connected through the body parts; and the external screw (5) has internal threads matched with the threads of the internal screw (4). Making a change to the traditional structural design mode of nail board and auxiliary 'locking', the combined compression locking type structure has multiple functions for internal fixation; and the combined compression locking type structure comprises a preset external screw, a matched multi-section opening device and a steel plate combination, and has the functions of regulating length, compressing and fully locking. Through the optimization of an operation mode by changing the design structure of a steel plate, operational injuries are reduced and internal fixation effect is enhanced for improving the safety and effectiveness of internal fixation.

The invention discloses a humeral greater tuberosity compression locking steel plate which comprises a steel plate body and screws. The steel plate body is a triangular steel plate without closed angles. The steel plate body is arc-shaped. Three screw holes are formed in the surface of the steel plate body. The screws are vertically mounted on the surface of the steel plate body. Three kirschner wire fixing holes are formed in the middle of the steel plate. Rotator cuff sewing holes are designed at the edge of the steel plate body. The humeral greater tuberosity compression locking steel plate has the advantages that the steel plate is made into a spherical surface conforming to humeral head anatomy to increase containment and compression of the steel plate to fractured bone blocks or crushed bone blocks, the screws are fixed with the steel plate in an angled manner to increase vertical pulling out force resistance, the steel plate is designed into the size only fixing a humeral greater tuberosity to facilitate minimally invasive operations, and the problem that the crushed fractured bone blocks cannot be fixed by the screws is solved.

The invention relates to the field of manufacturing of flame tubes of aero-engine combustion chambers, in particular to a rapid assembling and tack welding device for longitudinal welds of thin-wall tubes of different diameters, and aims to solve the problems that in the prior art, the operation is troublesome, both the time and the effort are wasted, the reliability is low, and the processing cost is high due to the usual application of a dozen sets of toolings to the tack welding of a gas film section. In order to solve the problems in the prior art, the rapid assembling and tack welding device for the longitudinal welds of the thin-wall tubes of different diameters is provided. The rapid assembling and tack welding device comprises a supporting seat, a mounting base, two sliding positioning seat assemblies and a compression locking assembly, wherein the mounting base is mounted at the top of the supporting seat; the sliding positioning seat assemblies are slidably arranged on the top surface of the mounting base and sequentially distributed along the guiding directions of guiding slots on the mounting base; and the bottoms of the sliding positioning seat assemblies are in pilotfit with the guiding slots. Compared with the prior art, the rapid assembling and tack welding device can be applied to the rapid assembling and tack welding of the tubes of different diameters withina certain range, and has the advantages that the product structure is simple, the operation is convenient, both the effort and the time are saved, and the reliability is relatively high.

A bone plate is disclosed herein. The bone plate generally comprises a bone facing surface, an outward facing surface opposite the bone facing surface, and at least one hole extending through the bone plate from the outward facing surface to the bone facing surface. An arced compression surface is provided within the at least one hole and a cam path is formed on the arced compression surface. The cam path comprises a cam groove that forms an indentation in the arced compression surface. The arced compression surface generally extends 360 DEG or less within the at least one hole. Similarly, the cam path generally extends one revolution or less around the hole upon the arced compression surface. Depending on the type of screw used in association with the bone plate, the bone plate to be used as either a compression plate or a locking plate.

The pipe cable ring clamp (1) comprising a coiled flat clip band (11) provided with transverse slots (111) on which at least one cable holder (4) is attached and comprising the outer coil (112) and the inner coil (113), and a strap lock (12) in which the clip band (11) is fastened, wherein the inner coil (113) of the clip band (11) is slidably mounted in the strap lock (12) and the strap lock (12) includes lock springs (139) coupled to the inner coil (113) of the clip band (11). The lock springs (139) are received in the strap lock (12) along the edges of the clip band (11) outside the contour of its perpendicular projection into the cylindrical surface of the pipe (5), the lock springs (139) are via the inner coil (113) of the clip band (11) coupled by the movable member (127) slidably mounted in the strap lock (12), wherein the movable member (127), on its end opposite to the rear wall (125) of the strap lock (12) is provided with spring stops (129) on which the lock springs (139) rest with one end thereof, while the other ends rest on the rear wall (125) of the strap lock (12) and wherein the movable member (127) is coupled to the inner coil (113) of the clip band (11) by a pusher tongue (133) in the pivotally mounted movable member (127), wherein the movable member (127) is adapted both to fix it in the rear position while compressing the lock springs (139) and to release it using the latch (135) slidably mounted in a vertical direction in the body of the movable member (127). It is also the basis of the series of pipe cable ring clamp installation apparatus invention.

The invention discloses a compression locking splicing type fluid conveying pipeline connecting device. The compression locking splicing type fluid conveying pipeline connecting device comprises a compression cover, a pipe body, a rubber sealing ring and a locking clamp ring. A connected pipe is inserted in a limit step in the pipe body from the connected end of the pipe body, the rubber sealing ring is mounted in a sealing ring groove in the inner cavity of the pipe body, the locking clamp ring is arranged on a support platform of the inner cavity of the pipe body, a compression cover sleeves the connected pipe, and the compression cover is manually locked with the pipe body through threads. The compression locking splicing type fluid conveying pipeline connecting device has advantages of simple structure, fast mounting, high safety and reliability, high pressure bearing ability, low cost, broad application range and the like.

The invention relates to an insulation short section for an electromagnetic wave measurement while drilling system. The insulation short section comprises an insulation short section body and a firstprotection joint and a second protection joint arranged at the two ends of the insulation short section body correspondingly, wherein a compression locking mechanism is arranged on the inner wall of the first protection joint and the inner wall of the second protection joint; and the compression locking mechanism comprises a plastic ring, a compression chamber arranged in the plastic ring, and a storage rod fixedly connected to the bottom end of the compression chamber. According to the insulation short section for the electromagnetic wave measurement while drilling system, the compression locking mechanism is additionally arranged at the connection between the protection joints and the insulation short section body, when the protection joints are connected with the insulation short section, the whole compression locking mechanism can be compressed, the compression locking mechanism blocks the gap between the protection joints and the insulation short section after the compression locking mechanism is subjected to force deformation, and the sealing performance is guaranteed; and meanwhile, a reset spring in the compression locking mechanism provides a certain reverse acting force,so that the pressure between threads does not become larger along with rotation, and the stability between the protection joints and the insulation short section is ensured.

The invention relates to an elastic pulling-assisting pinned coupler. The pinned coupler comprises a pin assembly, a plug shell, a socket shell, an elastic component and a lock catch assembly, the pin assembly is arranged at the lower end of the plug shell, the elastic component comprises a plurality of elastic parts which are distributed in the socket shell and have elasticity and a plurality of ejection blocks arranged at the lower end of the plug shell, the lock catch assembly comprises a plurality of locking parts and a plurality of trigger parts matched with the locking parts, the locking parts are connected with the plug shell and the socket shell, and the trigger parts are arranged at the upper end of the side surface of the socket shell. After the plug is inserted into the socket, the elastic component is compressed by the ejection blocks, the elastic component is fixed by the locking parts, the locking parts are unlocked by pressing the trigger parts, and the plug is ejected out of the socket through the elastic force of the elastic component. The plug and the socket can be quickly plugged only by pressing the trigger parts, and the plug and the socket are quick and convenient to use.

The invention discloses a railway vehicle ceiling plate mounting structure, which comprises a ceiling plate skeleton, a ceiling plate and a first connecting piece, wherein the first connecting piece is fixedly connected with a vehicle dividing wall and the ceiling plate skeleton respectively; the lower end of the first connecting piece is provided with a first groove of which the opening faces to the inside of a vehicle; a regulating rubber block is embedded in the first groove; the first end of the ceiling plate is provided with a spindle which can be supported on the upper wall of the first groove and is used as a fulcrum to rotate; the inner end of the ceiling plate of the first connecting piece is provided with a second groove of which the opening faces downwards; a first compression rubber block is embedded in the second groove; the second end of the ceiling plate is fixed with a second ceiling plate skeleton through a compression lock; after the ceiling plate is installed, the upper surface of the ceiling plate is abutted by the first compression rubber block; and the side edge of the ceiling plate is supported by the regulating rubber block. According to the railway vehicle ceiling plate mounting structure, liner materials at the back of the mounting position of the original structure are omitted, the periphery of the ceiling plate is fixed by respectively a splicing lock and a compression lock, the appearance is free from obvious bolts or depression bars, and therefore, the railway vehicle ceiling plate mounting structure is attractive. In addition, the mounting structure is simple to assemble and is convenient to maintain and replace the ceiling plate.

A handle assembly is disclosed for firmly holding a surgical tool. The handle assembly comprises a handle and a locking mechanism attached to the handle. The locking mechanism includes a locking ring, a collet, and a compressible locking pin engageable with the locking ring and collet. The locking ring is moveable between first and second positions relative to the handle. The first position is an unlocked position whereby the locking pin is in a decompressed state relative to the locking ring and the collet. In the first position, a surgical tool may be inserted and withdrawn from the collet of the locking mechanism. The second position is a locked position whereby the locking pin is in a compressed state relative to the locking ring and the collet. In the second position, a surgical tool is anchored in the collet of the locking mechanism.

A well casing packer is provided that includes a seal mandrel having a first coupler, a second coupler, and a neck extending between the first coupler and the second coupler. A first compression body is slidably coupled to the seal mandrel at the first coupler. A second compression body is connected to the seal mandrel, and a compression lock ring connected to the first compression body. A packer seal is disposed in surrounding relation to a portion of the neck of the seal mandrel and between the second compression body and the compression lock ring, such that a longitudinal movement of the seal mandrel with respect to the first compression body allows the second compression body and the compression lock ring to longitudinally compress and radially expand the packer seal.

The invention belongs to the technical field of medical instruments and particularly relates to a double-column locking plate for distal radius palmaris. The double-column locking plate comprises a straight plate body which is provided with a shield-shaped head, four locking compression holes and a compression locking hole, the compression locking hole is positioned in the upper middle of the straight plate body, two furcated column head bodies are formed at the upper end of the straight plate body, and each column head body is provided with a plurality of screw holes. The double-column locking plate for the distal radius palmaris has the advantages that the straight plate body is provided with the shield-shaped head, the four locking compression holes and the compression locking hole, the compression locking hole is positioned in the upper middle of the straight plate body, the two furcated column head bodies are formed at the upper end of the straight plate body, each column head body is provided with the screw holes, and accordingly damage to soft tissues during implantation can be reduced; by the aid of the screw holes, multiple kinds of selection is facilitated, more selection can be achieved and locking is firm.

An improved manifold and valve cartridges suitable for high power (over 600 hp) reciprocating pumps for water blast or jet applications are disclosed. In one aspect, the disclosed valve cartridges are compact and mounted axially along a seat member that has a central bore in addition to suction and discharge seats. The seat member can also be provided a plurality of radially arranged bores for allowing suction flow to the pump. A spool valve assembly can be mounted through the seat member bore, and can include a valve spool, a spherical suction valve member, a compression spring, and compression-locked rings. The spool valve can include a closed flanged end that engages with the seat member discharge seat. In operation, the compression spring continuously pushes the spool valve closed flanged end against the discharge seat and pushes the suction valve member against the suction seat to retain a normally closed position.