Abstract: A transport system for delivery or retrieval of a biostimulator, such as a leadless cardiac pacemaker, is described. The biostimulator transport system includes a docking cap supported by a bearing within a bearing housing. The bearing allows relative rotation between a torque shaft connected to the docking cap and an outer catheter connected to the bearing housing. The bearing housing and the docking cap include respective bearing retainers that constrain the bearing within the bearing housing without a weld attachment. The weldless retainers of the biostimulator transport system provide a robust mechanical securement of the bearing that is not vulnerable to corrosion. Other embodiments are also described and claimed.

Abstract: A wellhead assembly includes a wellhead housing, the wellhead housing including a lock screw receptacle. The wellhead assembly includes an outer nested wellhead component positioned within the wellhead housing, the outer nested wellhead component including a lock screw aperture. The wellhead assembly includes an inner nested wellhead component, the inner nested wellhead component including an inner receptacle. The wellhead assembly includes a nested lock screw. The nested lock screw includes an outer sleeve, the outer sleeve having external threads formed on an outer surface thereof, the outer sleeve threadedly coupled to the lock screw receptacle of the wellhead housing. The nested lock screw includes an inner lock screw, the inner lock screw positioned within and threadedly coupled to the outer sleeve, the inner lock screw passing through the lock screw aperture and engaging the inner receptacle.

Abstract: A heat sink includes multiple load points and a plurality of load cell for each of the load points. Each of the load cells is configured to attach to a respective attachment point on a component and to create a tensile load between the respective attachment point of the component and a respective one of the load points of the heat sink. At least one of the load cells is configured to produce a different maximum tensile load than another load cell among the plurality of load cells.

Abstract: A sub floor damage prevention toilet pan is a pan that secures around the wax ring of a toilet bowl. The base of a pan contains a drain which may be plumbed into pre-existing wastewater line.

Abstract: A friction stir welding apparatus includes a probe, a shoulder, a recess part, and an annular member. The probe is pressed to a joint part of a plurality of joined members while being rotated. The shoulder is formed so as to surround the probe at an outside in a radial direction with respect to a rotation axis of the probe. The recess part is formed on at least one of an outer circumference of the probe and an inner circumference of the shoulder. The annular member is fitted to the recess part.

Abstract: A pad assembly is provided for use with a protective sports helmet in a contact sport, the helmet having an opening. The pad assembly includes a pad member within a pad housing, and a retainer having a projection that fits within the helmet opening. The pad assembly also includes a cap detachably coupled to the retainer, the cap including a base portion that fits within the helmet opening and a flange portion that fits within a countersunk recess disposed around the helmet opening, the cap detachably receiving the projection of the retainer. A protective sports helmet having a pad assembly is also provided.

Abstract: The invention encompasses a bone screw for use in the human body including a shaft having a threaded region along at least a portion of its length and a screw head including a locking mechanism to secure the screw, for example to a bone plate. In certain embodiments, the thread has an outer diameter dimensioned to pass through the screw hole in the implant. The screw head is configured to cooperatively engage at least a portion of the screw hole of the implant so as to prevent the screw from coming out of the implant and avoided soft tissue damage and other complications associated with unintended screw removal.

Abstract: A compression screw for applying compression at a bone joint. The compression screw includes an axial screw body extending from a distal end to a proximal end with the distal end including a series of bone engaging threads configured to be self-drilling and self-tapping and the proximal end including a head which defines a radially extending shoulder. At least one proximal rotary cutting structure is defined proximally of the bone engaging threads. The at least one proximal rotary cutting structure is configured to be self-drilling such that a proximal portion of the axial screw body cuts into and advances within a bone of the bone joint as the axial screw body is advanced. A method of inserting the compression screw is also provided.

Abstract: A hollow screw and related process of making is provided, wherein the hollow screw is formed from a generally circular corrosion resistant stainless steel disk cut from flat roll stock. The hollow screw includes a head and an elongated and hollow shaft having a wall thickness between about 0.2 to about 0.7 millimeters extending therefrom and defining a shank portion and a threaded portion having a plurality of threads thereon with a rotational drive mechanism configured to facilitate tightening via the threads. The process involves annealing to soften the stamped hollow screw, followed by thread rolling, and then age hardening the hollow screw. As such, the resultant hollow screw is relatively lightweight, about 50% the mass of a solid core screw made from the same material, with a sufficient thread strength to meet most aerospace applications and contributes to important aircraft fuel economy.

Abstract: A spinal implant assembly comprising an intervertebral device configured to be installed in a spinal disc space, the intervertebral device having a head component and a body component, the spinal implant assembly further comprising a coupling body for coupling the head component of the intervertebral device and an elongate member, the coupling body and head component each having a longitudinal axis, wherein the head component can be received by the coupling body with its longitudinal axis at a selected angle within a predetermined range of angles relative to the longitudinal axis of the coupling body.

Abstract: The invention encompasses a bone screw for use in the human body including a shaft having a threaded region along at least a portion of its length and a screw head including a locking mechanism to secure the screw, for example to a bone plate. In certain embodiments, the thread has an outer diameter dimensioned to pass through the screw hole in the implant. The screw head is configured to cooperatively engage at least a portion of the screw hole of the implant so as to prevent the screw from coming out of the implant and avoided soft tissue damage and other complications associated with unintended screw removal.

Abstract: A suture device with a composite end effector, the composite end effector including a suture with an unmodified fixation element at a distal end and an overlying attachment piece disposed over the proximal end of the unmodified fixation element. The resulting composite end effector has improved strength and avoids the need for affixation methods such as welding or chemical affixation.

Abstract: A screw gland assembly that comprises a body having threads formed on an outer surface of the body. A piston retainer coupled to the body, and a piston disposed within the body. A biasing member disposed between the piston retainer and the piston such that the piston is moveable relative to the body against a bias force of the biasing member.

Abstract: The invention relates to a threaded sleeve for screwing into a receiving opening of a workpiece, with a core and a thread mounted outside on the core, wherein the thread has three thread turns, wherein the thread turns have a thread profile, wherein the thread profile has a flank angle of 25° to 35°, wherein with an outer diameter of 8 mm to 14 mm the pitch of the thread is in the range of 0.5 to 1.0 times the outer diameter of the threaded sleeve and with an outer diameter greater than 14 mm to 40 mm, pitch of the thread is in the range of 0.25 to 0.65 times the outer diameter of the threaded sleeve, and wherein the thread depth of the thread profile is in the range of 0.03 times to 0.15 times the outer diameter of the threaded sleeve.

Abstract: A balancing device for a rotating part of a turbomachine, includes a ferrule pierced with a plurality of ports, a balancing screw passing through each port, each balancing screw including a body and a head, the head of each balancing screw being pierced with a recess, the balancing screws being of at least one first type, the recess of the screws of the first type being formed by a driving recess from which an additional recess extends.

Abstract: A suture anchor, and a surgical filament assembly using same, capable of being fixated in a hole formed in a bone of a patient. The suture anchor preferably includes an anchor body with a passage extending from a proximal end toward a distal end, and at least one bone engaging feature on the exterior of the anchor. A knot patency element disposed within the passage holds a removable sliding knot formed, using the surgical filament. A tightening limb of the sliding knot enables the user to tighten the sliding knot against an object extending through a capture loop to secure the object to the anchor.

Abstract: A hollow screw and related process of making is provided, wherein the hollow screw is formed from a generally circular corrosion resistant stainless steel disk cut from flat roll stock. The hollow screw includes a head and an elongated and hollow shaft having a wall thickness between about 0.2 to about 0.7 millimeters extending therefrom and defining a shank portion and a threaded portion having a plurality of threads thereon with a rotational drive mechanism configured to facilitate tightening via the threads. The process involves annealing to soften the stamped hollow screw, followed by thread rolling, and then age hardening the hollow screw. As such, the resultant hollow screw is relatively lightweight, about 50% the mass of a solid core screw made from the same material, with a sufficient thread strength to meet most aerospace applications and contributes to important aircraft fuel economy.

Abstract: An insertion instrument is configured to eject one or more of anchor bodies across an anatomical gap so as to approximate the gap. The insertion instrument can include a single cannula that retains the pair of anchor bodies in a stacked relationship, or a pair of adjacent cannulas that each retains respective anchor bodies. The insertion instrument can be actuated so as to eject the anchor bodies into respective target anatomical locations.

Abstract: A threaded receptacle for receiving a commercially available knotless suture anchor is designed to secure sutures for tying soft tissue in patients that have bone characteristics where the typical anchor is avulsed because of the weakness of the bone structure, a cavity exists in the bone where an anchor has been removed. The threaded receptacle includes a helical thread that is maximized to provide sustaining surface and includes a central bore and an internal flange that is dimensioned to provide a central opening to allow the knotless suture anchor to pass into a cavity and prevent the knotless suture anchor from being expulsed when deployed. The internal dimension of the cavity is designed to cause the tips of the wings of the anchor to fold to assure sufficient holding structure.

Abstract: A threaded metal sleeve includes a core and a thread provided on the outside of the core, with the thread profile having a flank angle within the range from 25° to 35°. The pitch (h) of the thread is 0.1-fold to 0.4-fold of the outer diameter of the threaded sleeve, and the thread depth of the thread is 0.02-fold to 0.2-fold of the outer diameter of the threaded sleeve.

Abstract: A weight screw for a golf club head having one or more weight ports is disclosed herein. A set of weight screws is also disclosed herein, the set comprising at least one low-weight screw comprising multiple materials and at least one weight screw comprising a single material.

Abstract: A waterproof, dustproof, breathing bolt includes a bolt body having a hollow shank with a breathing chamber and a cap member fixedly located at the top side of the hollow shank and defining therein an air passage in communication with the breathing chamber and one or a number of openings in communication between the air passage and the surroundings, and a waterproof breathing member made out of a metal material by powder metallurgy and set in between the breathing chamber and the air passage and having micro pores therein of size larger than air molecules but smaller than water molecules. Thus, the waterproof breathing member allows discharge of hot air out of the apparatus in which the waterproof, dustproof, breathing bolt is installed, but prohibits external water from entering the apparatus.

Abstract: A screw anchor for insertion into concrete is disclosed. The screw anchor has an essentially cylindrical base body on whose outer lateral surface an external thread is provided and which has a receptacle arranged in the direction of the cylinder longitudinal axis originating from an axial end face. The receptacle has a load-bearing structure originating from the axial end face. A tool receptacle extending essentially in the direction of the cylinder longitudinal axis is provided in the receptacle, wherein the tool receptacle extends further into the receptacle than the load-bearing structure from the end face to the rotary drive of the screw anchor in the cylinder longitudinal direction.

Abstract: An insert for a sports board comprising an outer ring unit comprising a threaded top piece and a threaded bottom piece and an inner insert unit comprising a threaded top piece and a threaded bottom piece. The outer ring unit is installed into a mounting hole that penetrates through a sports board. The top and bottom pieces of the outer ring unit each comprises a flange with a diameter greater than the diameter of the mounting hole. The top piece and the bottom piece of the outer ring unit are both hollow, thereby creating an insert hole for the inner insert unit when the top piece and bottom piece of the outer are screwed together. The top piece and the bottom piece of the inner insert unit are installed into the insert hole created by the top piece and bottom piece of the outer ring unit and screwed together.

Abstract: A weight screw for a golf club head having one or more weight ports is disclosed herein. A set of weight screws is also disclosed herein, the set comprising at least one low-weight screw comprising multiple materials and at least one weight screw comprising a single material.

Abstract: A fastening element for hard constructional components such as concrete, masonry, and the like, includes a cylindrical base body (22; 42; 62) having an inwardly located engagement element (28; 48; 68) for the setting bit and formed as a through-opening (31; 51; 71) in the bottom section (23; 43; 63) which is provided at the first end of the base body, a receptacle (29) opening toward the second end (25), remote from the first end and adjoining the engagement element (28; 48; 68) in a direction toward the second end (25), and provided with load application means (30; 50); and a self-tapping thread (27) provided, at least regionwise, on an outer surface (26) of the base body (22, 42; 62).

Abstract: Disclosed is a torque control bolt for a hose clamp, which is configured to transmit a torque from a tool to a fastening bolt of a hose clamp to induce the fastening of the hose clamp, and then to be ruptured to prevent the transmission of torque exceeding a set value so as to prevent the damage of the hose clamp and the hose. The control bolt includes: a rupture bolt with a fastening body to transmit the torque from the tool to a head of the fastening bolt; a coupling unit formed on the head and the rupture bolt and configured to keep the coupling force between the head and the rupture bolt; and a rupture section formed on the rupture bolt and configured to prevent the torque from the tool from being transmitted to the fastening bolt when the torque exceeds the set value.

Abstract: A process for producing hollow bolts including a longitudinal bore with the hollow bolts being provided with circumferential notches. The hollow bolts are provided with longitudinal grooves extending between elevations determining the bolt diameter, wherein circumferential notches are rolled onto the hollow bolts provided with the longitudinal grooves and the elevations, the longitudinal grooves being of such cross-section that some of the material displaced during rolling-on of the notches flows into the longitudinal grooves.

Abstract: An apparatus and method for fastening cementitious components together or for fastening a cementitious component to a non-cementitious component to form a structure. In a preferred embodiment, the apparatus is a screw having a hollow shaft from which threads protrude and a tip comprising a plurality of drilling teeth or a plurality of thread members that surround said central space, each of said thread members forming a two-dimensional spiral. In use, the invention is operated by screwing it into the cementitious components and then injecting an adhesive into the void created by the screwing step.

Abstract: The invention relates to a screw which can be screwed into a component and which will resist further screwing into an internal thread within said component once a maximum torque has been reached. For this purpose, a screw body having an external thread is combined with a screw drive element which projects into a bore within said screw body and, within said bore, is connected to the screw body via static friction. At least part of this combination is made of a plastic material, with the static friction having the effect of a slipping clutch when a maximum torque acts on the screw drive element. The screw drive element is connected to the screw body via a ratchet in such a way that when the screw body is unscrewed from the internal thread within said component, turning said screw drive element will cause the ratchet to engage, thereby entraining the screw body.

Abstract: A soft padeye is shown and disclosed. The soft padeye has a spindle that runs through the deck of the ship or boat or other surface. The fastener is then screwed on the shaft and secured against the deck securing the fastener and the spindle to the deck. The spindle has a hole through it allowing the passage of a loop of line. The loop remains above deck while the two ends of the loop are fed through the shaft and tied in a knot that will not pull through the shaft. This allows the user to secure line or other hardware to the loop.

Abstract: The invention relates to a method for producing a threaded insert having an internal and external thread which have different thread pitches or the same thread pitch, wherein the threaded insert is wound from a profile strip which, on the one side thereof, is pre-shaped with the profile of the external thread, and on the other side thereof, is pre-shaped with the profile of the internal thread, and to a threaded insert which is generated by means of said method.

Abstract: The invention relates to a floor anchor (10) made of steel pipe. The floor anchor comprises a hollow shaft segment (14) having an external thread (16) at least in segments, and a head segment adjacent to the shaft segment (14) and facing downward in the anchored state in the floor. The head segment (12) is designed as a drill head and comprises elements for removing earth.

Abstract: A fastening assembly includes a connecting member, a mounting member mounted to the connecting member, and a sliding member. The mounting member includes a first fixing portion. The sliding member is slidably received in the mounting member and the connecting member. The sliding member includes a first end exposed out of the first fixing portion, and a second end slidably received in the connecting member. The second end of the sliding member is operable to be extended out of or substantially coplanar with an end of the connecting member. The fastening assembly can be utilized to mount a heat sink to a board.

Abstract: A bolt (35) comprising a threaded shaft (36), and a heating element (37) for heating the shaft (36) is disclosed along with a method for securing a first part and a second part of a pipeline system together with the bolt (35). The method includes the steps of: heating the bolt (35) by heating the heating element (37); and securing the heated bolt to the first part and the second part of the pipeline system.

Abstract: A threaded metal sleeve includes a core and a thread provided on the outside of the core, with the thread profile having a flank angle within the range from 25° to 35°. The pitch (h) of the thread is 0.1-fold to 0.4-fold of the outer diameter of the threaded sleeve, and the thread depth of the thread is 0.02-fold to 0.2-fold of the outer diameter of the threaded sleeve.

Abstract: A mounting structure for a boss of a display module. The mounting structure is constructed with a reinforcing member installed on a chassis base of the display module, a boss including a threaded length having an outer portion on which a screw surface is formed and being coupled to the reinforcing member, and a connecting portion extending from the threaded length in a direction away from the reinforcing member and having an end portion in which a coupling hole is formed, and a supporting nut screwed into the threaded length to press the boss toward the reinforcing member.

Abstract: A fluid cooled fastener assembly for use in a high temperature environment and a method of fluid cooling a fastener assembly are provided. The fastener has a coolant passage extending axially through the fastener and a coolant collector coupled to an end of the fastener. The coolant collector includes a collector opening configured to capture a portion of a cooling fluid flowing past the coolant collector and a contoured passage in communication with the collector opening and the passage in the fastener. The contoured passage is configured to accelerate the cooling fluid captured by the coolant collector and to direct it into the coolant passage in the fastener.

Abstract: A screw anchor for insertion into concrete is disclosed. The screw anchor has an essentially cylindrical base body on whose outer lateral surface an external thread is provided and which has a receptacle arranged in the direction of the cylinder longitudinal axis originating from an axial end face. The receptacle has a load-bearing structure originating from the axial end face. A tool receptacle extending essentially in the direction of the cylinder longitudinal axis is provided in the receptacle, wherein the tool receptacle extends further into the receptacle than the load-bearing structure from the end face to the rotary drive of the screw anchor in the cylinder longitudinal direction.

Abstract: In an axial-flow preparative chromatography column that contains a piston, commonly termed an adaptor, that is lowered over the top of the resin, the ability to lower the piston in a controlled manner to minimize the chances of damage to the resin is achieved by use of an aperture either in the piston head itself or in a compound bolt that secures the upper column frit to the piston head. The aperture is closed with a removable plug during storage and use of the piston head and column. During packing of the bed, however, the plug is replaced by a graduated rod operating as a dipstick to allow the operator to determine the distance between the bottom face of the piston head and the upper surface of the column packing.

Abstract: There is described a shower spray device including a lower plate with a plurality of nozzles and an upper plate with an inlet for the water supply. An elastic sealing element is interposed between the two plates to delimit therewith a chamber for distributing water to the nozzles. To maintain the correct pressure of the two plates, clamping screws are used also having the function of delivery nozzles, i.e. screws formed by threaded pins having an axial duct, with an outlet open towards the outside to allow water delivery, and at least one transverse duct to place the distribution chamber in fluid communication with the axial duct for water delivery.

Abstract: A threaded element in the shape of a wire thread insert with a specific geometric design is disclosed. This threaded element contains, in particular, a narrowed helical winding of at least two helical winding sections that enclose one or a plurality of sequential secants. Based on this geometric design of the threaded element, a matched installation process is described.

Abstract: A positioning assembly includes a fastener and a pin. The fastener includes a latching portion and a fixing portion coaxially connected to the latching portion. The pin is movably received and fixed in the fastener. The fixing portion defines a threaded portion in a side surface of the fixing portion and a pinhole in an end surface of the fixing portion. The pin is received in the pinhole.

Abstract: A fastener assembly for parts of a plasma chamber. The fastener assembly includes a bolt with a tool engaging socket and a spring-loaded pin which fits in a through hole of the bolt. When installed, the spring-loaded pin substantially fills the space in the socket and thus prevents parasitic plasma from forming in spaces between opposed surfaces of the pin and bolt. When a tool such as a hex key is inserted into the socket, the spring-loaded pin retracts and the tool rotates the bolt to attach an upper part to a lower part by engaging threads of the bolt with a threaded hole in the lower part.

Abstract: A method of attaching a labyrinth seal support to a turbine engine shaft is disclosed. The method includes inserting axial bolts to secure the labyrinth seal support, the shaft and a device for driving the turbine module with the shaft, and screwing tightening screws in extracting holes, for extracting the drive device with respect to the shaft, provided on the shaft to tighten the labyrinth seal support onto the shaft.

Abstract: The present invention involves a projector mount and leveling system for securely connecting and aligning a working unit, such as a projector, to the ceiling of a room. The present invention has a ceiling component with upper and lower sections, the upper section of the ceiling component attaches to a mounting surface, typically the mounting surface is a ceiling, a mounting bracket connects to the lower section of the ceiling component; a plurality of offset articulated legs, each offset articulated leg having a proximal end, and a distal end with a threaded leveling barrel opening; and threaded leveling barrels, wherein the offset articulated legs connect to the mounting bracket at the proximal end, and the offset articulated legs connect at the distal ends to a projector with the threaded leveling barrels.

Abstract: A fastening mechanism which is easy to handle and operate. The fastening mechanism includes a bolster, a bolt, at least two elbows, and a support bracket. The bolster is provided with several retainer walls externally disposed, one side thereof being formed into an opening and the inside thereof being formed into a hollow space with a passage through which the bolt can pass. At least two elbows extend from the bottom end of the retainer walls. When the bolt mates with the inner thread formed in the retainer wall, a friction plate formed with the support bracket lodges into a tapered slot between two retainer walls so that the support bracket cannot move against the retainer walls. The at least two elbows angle outwards to retain the support bracket when the bolt is traveling along the inner thread.

Abstract: A hydraulic disc brake caliper that includes a housing that has first and second side portions and first and second end portions that cooperate to define a braking opening. The housing also includes first and second piston receiving openings and first and second fluid openings. The caliper also includes a bolt received in the second fluid opening that includes a shaft having a portion of a fluid path defined in the outer surface thereof that includes at least one channel and at least one reduced diameter portion. The fluid path extends from the first fluid opening to the second fluid opening. The at least one channel and the at least one reduced diameter portion are part of the fluid path and are in fluid communication between the first and second piston receiving openings.

Abstract: The invention relates to a method for producing a threaded insert having an internal and external thread which have different thread pitches or the same thread pitch, wherein the threaded insert is wound from a profile strip which, on the one side thereof, is pre-shaped with the profile of the external thread, and on the other side thereof, is pre-shaped with the profile of the internal thread, and to a threaded insert which is generated by means of said method.

Abstract: The invention relates to a threaded insert (10) having a central coaxial bore (12) having an internal thread (14) in a rotationally symmetrical body, one end thereof having an external force engagement (16), and having a central externally protruding flange (18), wherein the end of the rotationally symmetrical body opposite the force engagement (16) on the other side of the flange (18) has an external thread (20) comprising a thread pitch opposite that of the internal thread (14) and the flange (18) has radially extending ribs (26) on the side thereof facing the external thread (20).