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45 results about "Leadscrew" patented technology
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A leadscrew (or lead screw), also known as a power screw or translation screw, is a screw used as a linkage in a machine, to translate turning motion into linear motion. Because of the large area of sliding contact between their male and female members, screw threads have larger frictional energy losses compared to other linkages. They are not typically used to carry high power, but more for intermittent use in low power actuator and positioner mechanisms. Common applications are linear actuators, machine slides (such as in machine tools), vises, presses, and jacks.
Prosthetic digits and actuators
Owner:TOUCH BIONICS
Systems and methods for transport and distraction
PendingUS20260108276A1DiagnosticsExternal osteosynthesisPhysical medicine and rehabilitationPhysical therapy
A transport device for increasing biological activity within a patient includes a base including a first end, a second end, an upper surface located between the first end and the second end, and a lower surface located between the first end and the second end, a base anchor configured to statically couple the base to a first portion of a bone of a subject, a translatable anchor configured to engage a growth stimulator, a leadscrew dynamically coupling the base to the translatable anchor, wherein the leadscrew is configured to rotate about a leadscrew axis while substantially maintaining its longitudinal position along the leadscrew axis in relation to the base, such that the growth stimulator, when engaged with the translatable anchor, is capable of independent movement in relation to the base along a stimulation axis that includes at least some transverse displacement with respect to the bone when the base is coupled to the bone via the base anchor, and a screw drive rotatably coupled to the leadscrew and configured to couple to a rotatable mating tool that is configured to rotate the leadscrew via the screw drive.
Owner:BIODYNAMIK INC
Positioning device for elastic sheet capacitor switch
The utility model discloses a positioning device for an elastic sheet capacitor switch, which belongs to the technical field of switches, and is characterized by comprising a guide rail, an adjusting mechanism and a positioning mechanism, the guide rail can limit the adjusting mechanism and guide the movement of the positioning mechanism by arranging the guide rail and the adjusting mechanism, so that the positioning mechanism can be conveniently positioned. A guide frame can be matched with a positioning magnet, movement of a positioning mechanism is positioned through magnetic force, an adjusting handle can be matched with a positioning rotating ring, a user rotates the adjusting handle, a guide screw can be driven to rotate along the positioning rotating ring, and a positioning suction cup is driven to move when the guide screw rotates; and therefore, the positioning suction cup can ascend and descend at the positioning rotating ring along the guide sliding rod, the positioning suction cup moves along the guide screw rod to gradually generate negative pressure, and the stability of the positioning suction cup when the positioning suction cup is adsorbed to the surface of equipment is improved.
Owner:DONGGUAN XUFENG ELECTRONIC TECHNOLOGY CO LTD
Powered actuation assist for an open linear stapling device
A surgical kit includes a stapling device and a powered actuation assist detachably couplable to the stapling device. The stapling device includes an anvil half section, a cartridge receiving half section, and a firing assembly including an actuation knob movable along a length of the cartridge receiving half section. The powered actuation assist includes a motor assembly, a lead screw operatively coupled to the motor assembly, a knob connector coupled to the lead screw, a battery pack, and a first switch electrically coupled to the motor to activate the motor. The knob connector is configured to detachably engage the actuation knob of the stapling device to impart axial displacement to the actuation knob. Actuation of the motor assembly imparts rotation to the lead screw, which, in turn, causes axial displacement of the actuation knob of the firing assembly.
Owner:COVIDIEN LP
Automated home health patient care system
A transfer device comfortably picks up a patient from a bed, then moves to the side of the bed for offloading the patient onto an accessory such as a chair. The bed has rails which act as tracks to engage a roller base of the transfer device, and lead screws for automating sideways movement of the device. The device uses a lifting system having strap storage at the head of the frame and web storage at the foot, the storage units vertically movable along support posts to multiple levels including a stowed level near the bottom and a clearance level near the top. The web storage contains an extendable dual web with a roller nose assembly, and the strap storage contains retractable pull straps having ends secured to the roller nose assembly. The transfer device has a compact design allowing the lifting system to be hidden underneath the bed.
Owner:PATTERSON RICHARD A
Fluid control system for ophthalmic surgery
Embodiments disclosed herein provide a compression system including a compression plate, a linkage assembly, and a drive assembly. The squeeze plate is configured to engage with the fluid bag. The linkage assembly includes a plurality of brackets, each bracket coupled to a plurality of linkage sets, where actuation of the linkage assembly translates the squeeze plate laterally. The drive assembly includes: a lead screw disposed through each of the plurality of brackets; an actuator configured to rotate the lead screw to actuate the drive assembly; and a nut assembly coupled to the lead screw and at least one of the plurality of brackets, where the nut assembly is configured to provide a biasing force to maintain a target pressure range on the fluid bag upon failure of the actuator.
Owner:ALCON INC
Electronic modal base valve
PendingUS20250361919A1Operating means/releasing devices for valvesSpringsControl valvesControl theory
A check shim style electronic modal base valve is disclosed. The check shim style electronic modal base valve includes a motive component, a controller communicatively coupled with the motive component, and a control valve having a lead screw is coupled with the motive component. The controller is configured to control an operation of the motive component, wherein a movement of the motive component is configured to cause the control valve to adjust a flow rate for a flow path through the check shim style electronic modal base valve.
Owner:FOX FACTORY INC
Linkage swing head structure
The present invention provides a linkage swing head structure, including: a base, a drive mechanism and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism and a lead screw. An end of the spindle is fixed with a cutter, and the spindle is fixed on an end of the connecting rod mechanism. An end of the connecting rod mechanism fixed with the spindle is sleeved on a support bearing, the connecting rod mechanism can rotate around the support bearing, the support bearing is fixed on the base, and the other end of the connecting rod mechanism is movably connected to the lead screw. An output end of the power mechanism is connected to an end of the lead screw. The connecting rod mechanism adjusts the rotation angle of the spindle by sliding on the lead screw. The drive mechanism of the present invention is far away from the spindle, and the interference range thereof to the spindle is small. The spindle can be automatically and continuously indexed, and can also perform linkage machining with small cutting amount, and thus, when the cutter rotates by the same angle, the volume of the device is reduced; the structure is simple and the manufacturing cost is low.
Owner:KEDE NUMERICAL CONTROL CO LTD
Actuator for a heavy vehicle foundation brake
Aspects of the present invention relate to an actuator (101) for a heavy vehicle foundation brake. The actuator (101) has a housing (111) having an outboard end, the actuator housing (111) being configured to be fixable to the foundation brake at the outboard end, and a lead screw assembly (126). The lead screw assembly (126) comprises a lead screw housing and a lead screw configured to translate relative to the lead screw housing along an axis (122), the lead screw being configured to actuate an output pushrod in order to interface with the foundation brake. The actuator (101) also includes a first anti-ejection feature arranged to limit the maximum relative movement of the lead screw and the lead screw housing in the axial direction.
Owner:MERITOR HEAVY VEHICLE BRAKING SYSTEMS (UK) LIMITED
Apparatus for moving seat rail for vehicle
An apparatus for moving a seat rail for a vehicle includes a casing, a lead nut mounted in the casing and screw-coupled to a lead screw configured to penetrate the casing, a worm wheel having first engagement portions provided on one surface of the worm wheel, and a clutch drum configured such that second engagement portions configured to engage with the first engagement portions are provided on one surface of the clutch drum, and keys provided on an inner-diameter portion of the clutch drum are inserted into key grooves provided in the outer-diameter portion of the lead nut.
Owner:HYUNDAI TRANSYS INC
Actuator for a heavy vehicle foundation brake
Aspects of the present invention relate to an actuator (101) for a heavy vehicle foundation brake. The actuator (101) comprises an actuator housing (111) having an outboard end, the actuator housing (111) being configured to be fixable to the foundation brake at the outboard end, and a lead screw assembly (126). The lead screw assembly (126) includes a lead screw housing configured to be selectively rotated by a torque source, and a lead screw in communication with the lead screw housing. The lead screw is configured to translate relative to the lead screw housing along an axis (122) when the lead screw housing is rotated, to actuate an output pushrod in order to interface with the foundation brake. The actuator (101) also comprises a first anti-rotation feature arranged to inhibit relative rotational movement of the lead screw and the actuator housing (111).
Owner:MERITOR HEAVY VEHICLE BRAKING SYSTEMS (UK) LIMITED
Seat adjusting device
Owner:ADIENT US LLC
Support rack systems and methods for pickup trucks
The present disclosure relates to an adjustable load bearing system for use with a load supporting element being used on a motor vehicle. In some embodiments the system makes use of a reversible motor and a pair of track assemblies. The track assemblies are secured to spaced apart portions of the vehicle, with the track assemblies being secured generally parallel to one another along a length of the vehicle. Each said track assembly may have a linear rail element secured to the track assembly, a trolley assembly and a lead screw. The trolley assembly is positioned on the linear rail element and movable linearly. The trolley assembly is used to move the load supporting element lengthwise along the vehicle. The lead screw is in communication with the trolley assembly and with the motor. Rotational movement of the lead screw in response to signals from the motor causes translating movement of the trolley assembly along at least a portion of the length of the vehicle.
Owner:JAC PRODUCTS INC
Switch with Electromechanical Actuator
PendingUS20260100315A1Non-mechanical controlsSwitch power arrangementsControl circuitElectric current flow
An apparatus for controlling current in a circuit may include a motor, a leadscrew coupled to the motor, and an actuator arm coupled to the leadscrew. The apparatus may include a common terminal, a normally open terminal, a normally closed terminal, and a contact arm configured to couple the common terminal to the normally closed terminal in a first position and to the normally open terminal in a second position. A spring can bias the contact arm toward the first position, and the motor can be configured to operate the leadscrew to move the actuator arm, and the actuator arm can be configured to move the contact arm from the first position to the second position.
Owner:CHIBLI OMAR
Cable tie tensioning device with inline load cell
PendingUS20260077894A1Packaging automatic controlTension measurementStructural engineeringControl theory
Owner:ABB (SCHWEIZ) AG
Single drive dual motion actuator assembly
A single drive dual motion actuator assembly comprises a double-handed threaded lead screw connected to a motor, with distinct left-handed and right-handed threaded sections. Mounted on these sections are left-hand and right-hand threaded carriers, facilitating opposite movements along the lead screw axis. Attachment to first and second female ball sockets enables connection to moving attachments affixed to respective closure panels. Activation of the motor initiates rotational movement of the lead screw, enabling coordinated opening and closing of the closure panels through the movement of the threaded carriers. The single drive dual motion actuator assembly provides efficient control over closure panels operations.
Owner:HI LEX CONTROLS INC
Fastener cap driving tool with self-reversing lead screw cap feeder
A fastener cap driving tool with a pressurized gas storage chamber that uses that pressurized gas as a gas spring to quickly force a piston and a driver into contact with a fastener. The pressurized gas is not vented to atmosphere, but is instead reused, and a motor powers a lifter to return the piston and the driver for the next driving stroke. The tool has a fastener magazine, and a separate cap magazine which includes an additional motor that powers a self-reversing lead screw. The lead screw acts as a feed pawl, and advances a collated strip of caps from the cap magazine towards an exit end of the tool. During a driving stroke, one fastener is driven through one cap, securing both to a workpiece.
Owner:KYOCERA SENCO IND TOOLS INC
Actuator capable of rotating motor angle at will
ActiveCN224191762URealize the scaling functionInternal wiring is stableMechanical energy handlingStructural associationDrive shaftActuator
The utility model relates to an actuator capable of rotating a motor at any angle, the actuator comprises a telescopic mechanism, a motor and a rotating mechanism, the telescopic mechanism comprises a driving screw and a telescopic rod group, the telescopic rod group is sleeved outside the driving screw, and one end of the telescopic rod group is movably screwed on the driving screw; the motor comprises a motor body and a transmission shaft fixedly connected with the motor body and driven by the motor body to rotate. The rotating mechanism is connected between the driving screw and the motor and can drive the driving screw and the motor to rotate relatively, the motor drives the rotating mechanism to drive the driving screw to rotate when started, and the motor can rotate by an angle relative to the telescopic mechanism through the rotating mechanism when static.
Owner:TIMOTIONTECHNOLOGYCO LTD
Device for detecting the displacement of a leadscrew in a roller leadscrew motor and a robot roller leadscrew motor
ActiveFR3161736B3Electric/magnetic position measurementsUsing electrical meansLinear motionRoller screw
Device for detecting the displacement of a leadscrew in a roller screw motor and a robot roller screw motor. The present invention relates to a device for detecting the displacement of a leadscrew in a roller screw motor and a robot roller screw motor. The roller screw motor comprises a motor rotor (1) and a motor leadscrew (6). The linear motion of the motor leadscrew (6) is driven by the rotation of the motor rotor (1). The detection device comprises: a first gear (2), a second gear (4), a first magnetic encoder (3), and a second magnetic encoder (5). The first gear (2) is fixedly connected to the end of the motor rotor (1); the second gear (4) is mounted on the motor housing. The second gear (4) and the first gear (2) mesh. Figure to be published with the abstract: Figure 1
Owner:KEPLER ROBOT CO LTD
Seat moving apparatus for vehicle
A seat moving device for a vehicle, includes: a lead screw having a male thread formed on the outer circumferential surface thereof, and arranged in the front-rear direction of the vehicle under the bottom surface of the interior space of the vehicle; a drive motor; a worm gear rotationally driven by the drive motor; a worm wheel rotating in engagement with the worm gear; a transmission gear rotating integrally with the worm wheel; a belt for power transmission engaged with a spur gear of the transmission gear, and formed in a closed curve shape; a moving wheel having a female thread engaged with the male screw formed on the inner circumferential surface thereof; and a gear box having an accommodation space formed therein for accommodating the worm gear, the worm wheel, the belt for power transmission, and the moving wheel.
Owner:HYUNDAI TRANSYS INC +1
Lead screw driven sheath dilator
Various implementations include a sheath system and corresponding dilator. The system includes a radially expandable sheath having an inner layer and a tubular strain relief layer, and a dilator sized and configured to be received within the lumen of the sheath.
Owner:EDWARDS LIFESCIENCES CORP
Leading screw adjustable pump float switch for sump, wastewater and dirt applications
A float switch device is characterized by a float switch mounting assembly, an adjustment member, and an adjustable lead screw. The float switch mounting assembly includes a guide rail and includes top and bottom mounts / supports having top and bottom mount / support lead screw openings and mounting and supporting the guide rail. The float switch mounting assembly includes an adjustable float switch mounting member configured to move relative to the guide rail. The adjustable float switch mounting member has a leadscrew opening with an internal thread, and also has a coupling member configured to couple to a portion of the float switch. The adjustable lead screw has a top lead screw end that rotates the adjustable lead screw to move the adjustable floating mounting member and adjust the height / position of the adjustable floating mounting member between the top and bottom mounts / supports.
Owner:FLUID HANDLING LLC
Compensation device for thermal errors of a machine tool feed axis screw
This invention provides a compensation device for thermal error of a machine tool feed axis leadscrew, comprising a first tail end spacer and several bearings sequentially fitted onto the tail end of the leadscrew. The tail end of the leadscrew has a positioning step. The inner ring of the bearing is in close contact with the first tail end spacer, and the first tail end spacer is in close contact with the positioning step. The device also includes a pressure cap, a disc spring, a fixed seat, a ejector pin, and a displacement sensor. The pressure cap and disc spring are both fitted onto the first tail end spacer. The fixed seat is fixed to the machine frame, and the pressure cap is fixed to the fixed seat. The two ends of the disc spring respectively abut against the pressure cap and the outer ring of the bearing. The displacement sensor is fixed to the fixed seat, and the ejector pin is slidably disposed within the fixed seat. The two ends of the ejector pin are in close contact with the outer ring of the bearing and the end of the displacement sensor, respectively. This machine tool feed axis leadscrew thermal error compensation device ensures the integrity of the bearing's rightward movement through the release of the disc spring's elastic force, resulting in small errors, improved compensation effect, and improved accuracy of the machine tool during actual operation.
Owner:ZHEJIANG UTE BEARING
Fluid driving device
The invention relates to the technical field of infusion pumps, in particular to a fluid driving device which comprises a guide screw, a driving wheel and a sleeve, a hole portion is formed in the center of the driving wheel, internal threads are arranged on the sleeve, the sleeve is connected with the guide screw through matching of the internal threads and the guide threads, the sleeve penetrates through the hole portion of the driving wheel, and a retaining mechanism is arranged between the driving wheel and the sleeve. The retaining mechanism is configured to limit the axial displacement of the sleeve in the driving wheel hole part when the driving wheel rotates in the first direction, the retaining mechanism comprises a first inclined part arranged in the driving wheel hole part and a second inclined part arranged on the outer surface of the sleeve, and the first inclined part and the second inclined part are configured to selectively abut against each other. According to the fluid driving device, due to the fact that the retaining mechanism is additionally arranged, the backward trend of the sleeve in the axial direction of the guide screw during rotation is effectively limited, it is guaranteed that rotation of the driving wheel can be stably and efficiently converted into axial propelling motion of the guide screw, and therefore it is guaranteed that fluid in the liquid storage device is stably infused by the plunger.
Owner:JIANGSU ANTSS POWER TECHNOLOGY CO LTD
Vehicle Seat Adjustment System With Power Long Rails
A power rail system for a vehicle seat includes an outer track defining an elongated channel with an elongated lead screw mounted in the channel. An inner track is received in the elongated channel and a power length adjuster gear transmission is mounted to the inner track and drivingly engaged with the elongated lead screw. A seat structure is mounted to the inner track for movement along the power rail system.
Owner:FISHER & CO INC
Delivery device for precise injection
A delivery device can be used with a syringe having a syringe barrel and a plunger. The delivery device can include a housing, a syringe holder configured to secure the syringe barrel, a motor received in the housing, a lead screw configured to be rotated by the motor, a threaded nut configured to move longitudinally over the lead screw to advance the plunger through the syringe barrel, and a frame disposed in the housing along the lead screw. An actuator can be positioned along an outer surface of the syringe holder. A longitudinal axis of the syringe holder can be offset and parallel to a longitudinal axis of the housing.
Owner:WEST PHARMACEUTICAL SERVICES INC
Drive mechanism for linearly displacing inner part and inner part in vehicle
Owner:FAURECIA INNENRAUM SYSTEME GMBH
Modular drive unit and transport system
PendingUS20260000432A1DiagnosticsMedical equipmentTransport systemPhysical medicine and rehabilitation
A system for increasing biological activity within a patient includes a housing, a drive carried within the housing, an indexing contour carried by the housing and configured to substantially stabilize the housing in relation to a transport device base of a transport device configured to move a growth stimulator in relation to a bone of a subject, a locking portion configured to releasably lock the housing to the transport device base, a rotatable mating tool carried by the housing, wherein the drive is configured to cause the rotatable mating tool to rotate, and wherein the rotatable mating tool is configured to be rotationally coupled to a screw drive of a leadscrew of the transport device when the housing is stabilized with the transport device base via the indexing contour and is locked to the transport device base via the locking portion, and a control unit configured to output a control signal configured to direct the drive to rotate the rotatable mating tool.
Owner:BIODYNAMIK INC
Vehicle seat adjustment system with power long rails
A power rail system for a vehicle seat includes an outer track defining an elongated channel with an elongated lead screw mounted in the channel. An inner track is received in the elongated channel and a power length adjuster gear transmission is mounted to the inner track and drivingly engaged with the elongated lead screw. A seat structure is mounted to the inner track for movement along the power rail system.
Owner:FISHER & CO INC