45results about How to "Stable retraction" patented technology

A medical device delivery sheath, which comprises an active member that volumetrically expands and contracts upon application of an appropriate electrical potential. The active member further comprises an electroactive polymer, for example, polypyrrole. Also described is a medical device delivery system comprising the same, as well as a method of delivering a medical device using the same.

A delivery system including an inner catheter with a reinforcing element and an outer catheter having a proximal end attached to a movable member. An abutment element may be attached to a distal end of the reinforcing element, configured to engage an implantable device disposed between the inner catheter and the outer catheter.

A medical device delivery sheath, which comprises an active member that volumetrically expands and contracts upon application of an appropriate electrical potential. The active member further comprises an electroactive polymer, for example, polypyrrole. Also described is a medical device delivery system comprising the same, as well as a method of delivering a medical device using the same.

An automatic closing door hinge, an automatic closing door mechanism, and a hinge of the automatic closing door mechanism, for smoothly opening a door or closing, with damping, a door. For example, an automatic door closing mechanism has a hinge having a pair of wing plates one of which has a cylinder in a circular cylindrical form received therein a piston, the other wing plate fixing an upper portion of an operation rod engaged with the piston, the piston being to be advanced and retracted through the operation rod associatively with a rotation of the other wing plate. The automatic closing door mechanism comprises a cam formed on the piston. An engaging part provided in the operation rod and movable in the cam. The cam and the engaging part engaging between the piston and the operation rod. A sphere arranged in a recess formed in an outer surface of the piston. A recess groove formed lengthwise in the cylinder. The sphere rolls along the recess groove, to allow the piston to slide within the cylinder. Impact upon door closing is to be damped by an action of air cushioning within the cylinder due to a return movement of the piston.

A rolling shutter and a slat for use in a rolling shutter are provided. The slat comprises a first receptacle and a second receptacle, wherein each receptacle is c-shaped and adapted to receive a retention screw, and wherein each receptacle projects from one or more of interior surfaces of the shutter slat.

A rolling shutter and a slat for use in a rolling shutter are provided. The slat comprises a first boss and a second boss, wherein each boss is c-shaped and adapted to receive a retention screw, and wherein each boss projects from one or more of interior surfaces of the shutter slat.

A medical device having a barrel, a retractable needle, a needle retraction assembly and a plunger, the needle retraction assembly including and being held inside the barrel prior to retraction at least in part by a retainer member contacting the barrel, the plunger comprising a plunger seal with an body having at least a portion that is rearwardly moveable relative to the plunger and an elastomeric web that seals a retraction cavity inside the plunger prior to retraction of the needle, the retainer member and the plunger seal each cooperating with an inside wall of the barrel to provide a sealed liquid containment chamber inside the device.

To provide a hydraulic driving device configured to smoothly extend a hydraulic cylinder. The present invention includes the open circuit E, the closed circuit A, a control device 57, and a control lever 56a. The open circuit E is provided with a flow passage 202 for connecting an outlet port of the open circuit pump 13 and a head chamber 1a of the boom cylinder 1, a selector valve 44a provided in the flow passage 202, a discharge flow passage 404 for connecting a hydraulic fluid tank 25 and a flow passage 200, and a bleed-off valve 64 provided in the discharge flow passage 404. The control device 57 is configured in such a manner that when a manipulate signal for extending the boom cylinder 1 is input from the control lever 56a, the bleed-off valve 64 is closed, the selector valve 44a is subsequently opened, and the open circuit pump 13 is controlled.

A retractable barrier assembly comprises a substantially upright stanchion supported by a base wherein the stanchion includes a removable housing having a first end, a second end, and a sidewall extending therebetween and having an elongate opening disposed therein, a rotatable rod disposed within the removable housing, a flexible screen having a leading edge, a trailing edge, and a top edge extending between the leading edge and trailing edge, the trailing edge coupled to the rotatable rod, and the leading edge having an edge attachment mechanism for selectively coupling and decoupling with a receiving member, and a winding mechanism coupled to the rotatable rod for retractably receiving and extending the flexible screen through the elongate opening of the sidewall, wherein the barrier assembly may be placed indoors or outdoors and interconnected to one or more additional such assemblies to define designated pathways, which assembly further functions to inhibit unauthorized or undesired ingress to and egress from such pathways, which assembly is mechanically suited to permit pre-printed signage including advertising or other public or private messages on corresponding extensible and retractable gates, and which assembly may further be quickly and easily installed and removed and engaged and disengaged with additional such assemblies.

A retractable barrier system for inhibiting access to designated private and public areas both indoors and outdoors, including by way of example but not limitation, retail and warehouse aisles and the like, includes a flexible screen retractable and extensible from a rotatable rod coupled to a mounting member, the mounting member having an attachment mechanism for coupling with a receiving member, wherein a winding mechanism is coupled to the rotatable rod for retractably receiving and extending the flexible screen, the flexible screen is comprised of material having a sufficient modulus of elasticity to promote substantially smooth retractably receiving thereof and may further include tapering between ends thereof, and the winding mechanism may include a guide member having a surface of sufficient diameter oriented substantially perpendicular to the flexible screen to guide the flexible screen upon retractably receiving the screen.

A stent delivery system delivers a self-expanding stent to a predetermined location in a body lumen. The delivery system has a catheter body, a retractable outer sheath and a proximal retraction handle connected to a proximal end of the catheter body. The catheter body carries the stent near a distal end of the catheter body for transporting the stent for deployment. The sheath surrounds and contains the stent in a delivery configuration where the stent has a reduced radius along its entire axial length. The sheath has an outer tube a separate inner tube. The outer tube has a distal end portion surrounding the stent along its entire length and a proximal end portion connected to the retraction handle. The inner tube is disposed concentrically within the outer tube and has a distal end portion surrounding the stent only along a part of its entire length.

The object of this invention is to provide a safety knock-type writing instrument. The writing instrument includes a barrel (10) with a cartridge (50), a gear unit (30), and a knock unit (60). The gear unit (30) is positioned on an exterior of the barrel (10) and rotatably seated on a clip (20). The knock unit (60) is provided in the barrel (10), and includes first and second protrusions (61, 62) to engage with the gear unit (30), thus operating the gear unit. In this writing instrument, when the first protrusion (61) of the knock unit disengages from the gear unit (30), the cartridge is retracted into the barrel. Thus, although a user puts the writing instrument, with the cartridge extended, in a pocket without first retracting the cartridge, the cartridge is automatically retracted into the barrel, thus preventing his / her clothing from being stained by the cartridge.

A retractable barrier system for inhibiting access to designated private and public areas both indoors and outdoors, including by way of example but not limitation, retail and warehouse aisles and the like, includes a flexible screen retractable and extensible from a rotatable rod coupled to a mounting member, the mounting member having an attachment mechanism for coupling with a receiving member, wherein a winding mechanism is coupled to the rotatable rod for retractably receiving and extending the flexible screen, the flexible screen is comprised of material having a sufficient modulus of elasticity to promote substantially smooth retractably receiving thereof and may further include tapering between ends thereof, and the winding mechanism may include a guide member having a surface of sufficient diameter oriented substantially perpendicular to the flexible screen to guide the flexible screen upon retractably receiving the screen.

The retractable, light-emitting structure comprises of a string structure that has several light-emitting components: a fixed housing with openings at each end and a mobile housing with openings at each end. The ends of each housing are matched up to create a retractable lid that displays the emitting light inside the fixed housing. The mobile housing would inwardly retract along the fixed housing to make the retractable cover. These structures are ideally installed on the eaves or edges of a housing complex and are controlled by a remote control device that allows for color customization and the ability to control the mobile housing in accordance to different holidays, festivals, and user preference.

A throttle valve controller configured to control opening and closing of a throttle valve disposed in an air-intake passage of a throttle body coupled to an engine, including an input member that is rotatable in association with a rider's hand operation, a power transmission device with an input part thereof coupled to the input member, an output member that is coupled to an output part of the power transmission device and causes the throttle valve to rotate in association therewith, an actuator configured to drive the power transmission device to cause the output member to rotate relative to the input member to change a rotational ratio of the output member to the input member independently of the hand operation, and a movable stopper configured to change and restrict a rotational range of the input member in a closing direction of the throttle valve.

A non-anchored, self-supporting screen assembly for selective placement by a user on a walking surface. The assembly includes a housing having a first end, a second end, and a sidewall extending therebetween and having an elongate opening. A base independently supports and disposes the housing in an upright position substantially normal to the walking surface during use. A rotatable rod is disposed within the housing and coupled to a trailing edge of a flexible screen. The flexible screen may be coupled to an external attachment point upon extension of the screen through the elongate opening and decoupled upon retraction. A spring is coupled to the rotatable rod to exert a force in a direction opposite a direction of extension of the flexible screen. The flexible screen of an adjacent assembly may be coupled to the assembly to form a screen system.

To provide a hydraulic driving device configured to smoothly extend a hydraulic cylinder. The present invention includes the open circuit E, the closed circuit A, a control device 57, and a control lever 56a. The open circuit E is provided with a flow passage 202 for connecting an outlet port of the open circuit pump 13 and a head chamber 1a of the boom cylinder 1, a selector valve 44a provided in the flow passage 202, a discharge flow passage 404 for connecting a hydraulic fluid tank 25 and a flow passage 200, and a bleed-off valve 64 provided in the discharge flow passage 404. The control device 57 is configured in such a manner that when a manipulate signal for extending the boom cylinder 1 is input from the control lever 56a, the bleed-off valve 64 is closed, the selector valve 44a is subsequently opened, and the open circuit pump 13 is controlled.

A telescopic tube set for a bridge transport system is disclosed. The telescopic tube set includes cylindrical tubes each having an upper end, at which an upper ring is mounted, and a lower end, at which a lower ring is mounted, the cylindrical tubes having different diameters, pulleys mounted to respective inner wall surfaces of a part of the tubes, and extension / retraction lines each having an end connected to the upper ring of a corresponding one of the tubes, and an opposite end connected to the upper ring of another corresponding one of the tubes while extending around the pulley mounted to the tube interposed between the corresponding tubes. A plurality of bearings are installed at the lower ring to guide the tube, at which the lower ring is mounted, such that the tube extends or retracts straight in a longitudinal direction.

A throttle valve controller configured to control opening and closing of a throttle valve disposed in an air-intake passage of a throttle body coupled to an engine, including an input member that is rotatable in association with a rider's hand operation, a power transmission device with an input part thereof coupled to the input member, an output member that is coupled to an output part of the power transmission device and causes the throttle valve to rotate in association therewith, an actuator configured to drive the power transmission device to cause the output member to rotate relative to the input member to change a rotational ratio of the output member to the input member independently of the hand operation, and a movable stopper configured to change and restrict a rotational range of the input member in a closing direction of the throttle valve.

There is provided a plant holder capable of, with a simple configuration, causing a root of a plant stock to pass through a holding hole downwardly without damaging the root of the plant stock, preventing a leaf from drooping downward and being damaged, and improving workability when transplantation and harvest are automated without damaging the plant stock by contact with the plant stock.A plant holder 110 includes a fitting portion 111 and having a plant stock support hole 114 in an inner surface, a placement portion 113 which is provided above the fitting portion 111, and a flange portion 112 which is provided above the placement portion 113. The outer diameter of the placement portion 113 is formed smaller than the outer diameter of the flange portion 112, and larger than the outer diameter of the holding hole 121.

An accumulator arm for a felling head has inner and outer arms which are hydraulically driven open and closed. The inner and outer sides of the outer arm are curved away from an accumulation pocket and toward a harvesting arm, wherein the accumulator arm can be pulled around a newly cut tree to add the tree to the accumulation pocket with a lesser amount of hydraulic force and with lesser damage to the trees.

There is provided a disk apparatus and disk recording method capable of managing unrecorded disks easily and of recording desired information quickly and easily. In the disk apparatus, a disk recorder DR is provided in a chassis 1, the disk recorder DR having: a tray 4 movable in the forward and backward directions; a drive chassis 5 movable in the upward and downward directions; an optical pickup arranged on the drive chassis 5; and a spindle motor 9 accompanied with a turntable 8, and being adapted to move the drive chassis 5 in the upward direction so that a disk placed on the tray 4 is lifted by the turntable 8 and rotated at a high speed to record information onto the disk through the optical pickup. In the chassis 1, there are provided: a disk repository 20 adjacent to the disk recorder DR and including a disk placing base 24 and a guide frame 25; and a disk setting device 21 for pushing disks D1 to Dn one by one out of the disk repository 20 to set each disk on the tray 4.