72 results about "Tubular formation" patented technology

This invention relates generally to an expandable intraluminal medical device for use within a body passageway or duct, and more particularly to a stent having at least a first hoop section and a second hoop section. The first hoop section comprises a tubular configuration of structural elements having proximal and distal open end, and defining a longitudinal axis extending there between. The second hoop section comprises a tubular configuration of structural elements having proximal and distal open end, and extending along the longitudinal axis defined by the first hoop section, but is rotationally offset from the first hoop section about the longitudinal axis.

A jetting nozzle for forming boreholes or for cleaning out other tubular formations has a vibration-inducing mechanism that maximizing penetration rates and expands the diameter of the boreholes. The vibration-inducing mechanism can be an internal turbine responsive to the flow of pressurized jetting fluid through the nozzle. The nozzle has forward openings defining a voraxial spray pattern for the forward-directed jetting portion of the fluid exiting the nozzle. The nozzle can also have a pointed end that is adapted to penetrate the formation. The vibration also reduces friction between the fluid supply hose and the borehole being jetted through the formation by the nozzle. A system for forming boreholes with the jetting nozzle and a method of forming boreholes is also disclosed.

A method for molding large parts, comprises the steps of providing a reinforced plastic melt comprising at least one thermoplastic material and reinforcement particles dispersed within the at least one thermoplastic material, the reinforcement particles comprising less than 15% of a total volume of the plastic melt, at least 50% of the reinforcement particles having a thickness of less than about 20 nanomenters, and at least 99% of the reinforcement particles having a thickness of less than about 30 nanometers; communicating a tubular formation of the plastic melt to a mold assembly having a mold cavity defined by mold surfaces, the mold surfaces corresponding to a configuration of the part to be molded; applying pressurized gas to an interior of the tubular formation to expand the tubular formation into conformity with the mold surfaces; and solidifying the plastic melt to form the part; and removing the part from the mold assembly.

A trocar for use in a minimally invasive surgical procedure includes an elongated body, nozzle means and means for delivering a pressurized flow of fluid to the nozzle means. The elongated body has a generally tubular configuration with coaxially arranged inner and outer walls and longitudinally opposed proximal and distal end portions, with the inner wall defining a lumen to accommodate passage of an instrument therethrough. The nozzle means is operatively associated with the inner wall of the body for directing pressurized fluid into the lumen to develop a pressure differential in an area within a region extending from a location adjacent a distal end portion of the lumen to a location adjacent a proximal end portion of the lumen, to form a fluid seal around an instrument passing therethrough.

The disclosed sump pump pit is modular, being formed from substantial planar lightweight top, bottom and side walls that when disassembled can be carried compactly stacked on one another to an intended sump hole, and can then be assembled and secured together as the rigid pit defining an enclosure sized to hold at least one sump pump (preferably two sump pumps side-by-side). Cooperating tongue and groove configurations on the side wall edges interlock these components in a tubular configuration, and the end edges of the side walls can be fitted into and secured in channels in the top and bottom walls, making the pit rigid. The pit walls are perforated for communicating the sump hole with the pit enclosure. Piping extended through the top wall allows water to be pumped from the sump hole via the pit pump(s).

An apparatus and method for internal repair of pipes and conduits, such as sewer pipes, pressurized water mains, water wells, and natural gas lines. The conduit repair apparatus includes a sleeve with locking mechanism to lock the sleeve in a tubular configuration. The sleeve is made of metallic or rigid plastic sheet having perforations. Some of the perforations are shaped like elongated slots and strips. A number of resilient O-rings are applied over the outer surface of the sleeve. A resilient membrane is applied over the O-rings. In one embodiment, a reinforcement band is used, and an additional layer of O-rings are included between the membrane and the reinforcement band.

An adhesive cord cover for enveloping a cord, such as an electrical cord or chandelier chain. The adhesive cord cover is formed from a lengthwise strip of fabric. A pressure sensitive adhesive is attached to the fabric strip, preferably along a first lengthwise edge. The pressure sensitive adhesive is positioned and configured to allow a fastening side of the pressure sensitive adhesive to be selectively adhered to the lengthwise strip of fabric to thereby form a tubular configuration for enveloping a cord. The pressure sensitive adhesive is preferably an adhesive transfer tape. The transfer tape preferably has a removable liner on the fastening side. The removable liner assists in preserving the adhesive properties of the pressure sensitive adhesive prior to use. The pressure sensitive adhesive transfer tape is preferably a continuous strip that extends substantially along the entire length of the piece of fabric.

The invention relates to an integral protective work clothing item comprising releasable integrated retaining elements and a digitally-activated retaining fastener. The inventive clothing item includes a harness and a retractable mechanism for securing a user to a standard lifeline. The item also comprises additional protective elements, such as a helmet, gloves and shoes which are connected thereto by means of respective elastic bands. Each of said bands is equipped with a hole for a fastener device that can only be released using a device designed for said purpose. The digitally-activated fastener comprises an electromagnet, a mobile discoidal part and a spring element. The cover of the fastener casing is provided with a hole and a tubular formation in which a pin or rod can be inserted and guided. In the operative position, the core of the electromagnet retains the rod in place and prevents the removal thereof, such that the casing and the rod are connected to one another and can only be released using the separate releasing device.

A gradient coil system for a magnetic resonance tomography apparatus has a layer structure including a gradient coil layer and a cooling layer. The cooling layer is fashioned as a plate heat exchanger, composed of plates, for cooling the gradient coil layer. In this way, a highly efficient cooling of the gradient coil layer is achieved with a lower structural height compared to conventional tubular configurations.

A gas temperature control system for maintaining a desired economizer outlet gas temperature across a range of boiler loads comprises a plurality of tubular configurations having surfaces that are in contact with the flue gas. Each tubular configuration, preferably, comprises a plurality of serpentine or stringer tubes arranged horizontally or vertically back and forth within the economizer, and each tubular configuration having a separate feedwater inlet. Heat transfer from the flue gas is accomplished by controlling the feedwater flow rates through the tubular configurations. In a temperature control system having two tubular configurations, the overall heat transfer capacity of the economizer may be reduced to maintain the desired economizer outlet gas temperature during low boiler loads by reducing feedwater flow through one tubular configuration and by overflowing the other tubular configuration, such that total flow of feedwater through the economizer is maintained substantially constant.

An girder bridge protection device comprises sacrifice means including girders which are installed on an upper surface of a bridge seat of an abutment or pier to support a bridge floor, a symmetrical main support member which connects two girders and has a pipe-shaped configuration, and an auxiliary support member which projects from one surface of a center portion of the main support member in a direction perpendicular to an axial direction of the main support member; and restraining means secured to the bridge seat of the abutment or pier and including an accommodating section which accommodates the auxiliary support member such that the auxiliary support member is separated from the accommodating section in a forward and rearward direction and in a leftward and rightward direction, thereby controlling the behavior of the auxiliary support member.

The invention relates to an integral protective work clothing item comprising releasable integrated retaining elements and a digitally-activated retaining fastener. The inventive clothing item includes a harness and a retractable mechanism for securing a user to a standard lifeline. The item also comprises additional protective elements, such as a helmet, gloves and shoes which are connected thereto by means of respective elastic bands. Each of said bands is equipped with a hole for a fastener device that can only be released using a device designed for said purpose. The digitally-activated fastener comprises an electromagnet, a mobile discoidal part and a spring element. The cover of the fastener casing is provided with a hole and a tubular formation in which a pin or rod can be inserted and guided. In the operative position, the core of the electromagnet retains the rod in place and prevents the removal thereof, such that the casing and the rod are connected to one another and can only be released using the separate releasing device.

An electronic device cover is provided having an elongated first surface, a first and second sidewall surface, and a first and second inward lip member forming a sleeve-like configuration to accept a handheld electronic device therein. The first end of the cover comprises an inwardly flaring surface adapted to prevent an electronic device from sliding therethrough. The second end of the cover comprises an outwardly flaring surface adapted to facilitate insertion of an electronic device therethrough. The device is adapted to be sized such that the first surface and sidewall surfaces are coextensive with a rectangular smartphone or tablet device. The inward lip members extend partially over the outer surface of the electronic device to retain the same within the cover interior volume. Overall, the cover dissipates impact energy and improves acoustics of the electronic device when secured thereto.

The disclosure relates to a pump dispenser and a method of assembly of such a dispenser, in which the container interior reduces its volume progressively as product is dispensed to avoid air contact with the product. One aim is to prevent any air in the container space above the product from reaching the pump inlet, and thereby possibly reducing a dispensed dose without the user being aware. To trap any such air and keep it away from the inlet throughout use of the dispenser, an air trap member (5) having a downwardly-convex dish form is provided below the floor of the dispenser module around the inlet, to guide any such air away from the inlet and to the periphery. At the periphery a steeply-sloping peripheral portion forms a retaining lip (53), which may make flexible wiping contact with the container wall interior, allowing air past on assembly of the dispenser. A central tubular formation (52) of the trap member (5) separates the trapped air from the inlet, and can be used to plug the trap member into the inlet. A sliding follower piston (15) may have an upward central boss (152) shaped to fit into the tubular formation (52) of the trap member (5) to maximise expulsion of product.

A gasket for a valve in an internal combustion engine is provided with a support element having a tubular configuration according to an axis and coaxially mounted on the valve. An elastically deformable element is interposed between the support element and the valve. The support element includes a first portion elongated according to the above mentioned axis, and a second portion extending from the first portion in a direction transversal to the axis, at least partially housed in an annular seat of the elastically deformable element and having its radially outermost end connected to the first portion itself. The support element comprises a third portion extending from the radially innermost end of the second portion and folded on the second portion itself so as to generate, in the folding area, a rounded edge cooperating with the annular seat of the elastically deformable element.

A mold for making a membrane having a reinforcement annulus configured to be received within a flow control system for use with a micropump is disclosed. The mold has a female body portion, a male body portion and a body support member. The female body portion has a cylindrical elongate lower portion extending along an axis and having a diameter D, and a centered, concave upper face having substantially the same diameter D and having a radius of curvature R. The upper face is oriented substantially perpendicularly to the axis of the elongate lower portion and extends therefrom. The male body portion has a cylindrical elongate upper portion having a lower terminus and extending along an axis. The upper portion thereof has a diameter substantially equal to D. The male body portion further has a central cylindrical portion having a height H and extending from the lower terminus along the axis of the upper portion. The central portion has a diameter of D-G, wherein G is the annular thickness of a spacing gap extending radially outward from the central portion. The male body portion further has a centered, convex lower face having a diameter substantially equal to D-G, a radius of curvature substantially equal to R and being oriented substantially perpendicularly to the axis of the elongate upper portion. The body portion support member has a generally elongated, tubular configuration and further has an inner diameter just slightly greater than D. The body portion support member is thereby configured to receive at least a portion of the female body portion and at least a portion of the male body portion, so that the female and male body portions can be maintained along the same axis. In this fashion, the convex face and concave face are positioned cooperatively to effect manufacture of the membrane having a reinforcement annulus configured to be received within a flow control system for use with a micropump.

An adhesive cord cover for enveloping a cord, such as an electrical cord or chandelier chain. The adhesive cord cover is formed from a lengthwise strip of fabric. A pressure sensitive adhesive is attached to the fabric strip, preferably along a first lengthwise edge. The pressure sensitive adhesive is positioned and configured to allow a fastening side of the pressure sensitive adhesive to be selectively adhered to the lengthwise strip of fabric to thereby form a tubular configuration for enveloping a cord. The pressure sensitive adhesive is preferably an adhesive transfer tape. The transfer tape preferably has a removable liner on the fastening side. The removable liner assists in preserving the adhesive properties of the pressure sensitive adhesive prior to use. The pressure sensitive adhesive transfer tape is preferably a continuous strip that extends substantially along the entire length of the piece of fabric.

An apparatus for repairing an underground pipe includes a mandrel having a first expander capable of extending and retracting in a radial direction, a system for causing radial expansion and retraction of the expander when in position at a pipe location in need of repair, a resilient stiffening frame disposable in a tubular configuration outside of the expander, such that the expander can be used to expand the frame into contact with the inside of the pipe, and a suitable arrangement for confining a flowable cement between the expander and the inside of the pipe to form a repair band upon setting of the cement. In a preferred form of the invention, the expander comprises a central inflatable bladder, and the system controlling radial extension and retraction of the expander includes a line supplying pressurized air to the bladder.

A liquid level sensor for measuring liquid levels in underground and above ground containers includes a frame formed to have an elongate hollow tubular configuration that encloses a cavity. A cam pivot has an end extending into the cavity from a first inner wall portion of the frame. A cam is arranged to be pivotal about the end of the cam pivot. A float is placed in the cavity. A spring is arranged to bias the cam arm into contact with the float to force a side portion of the float into a locked position in frictional engagement with the second inner wall portion of the frame. A cam actuator pivotally mounted in a lower end portion of the frame exerts a force on the cam arm to release the float from the locked position when the lower end of the frame contacts the container bottom.

An endless fusing thick belt for an electrographic imaging device having a flexible tubular configuration of predetermined diameter, said endless fusing thick belt comprising; an outside surface toner release layer comprised of a coating and a sleeve; a silicone rubber layer positioned inside said outside surface toner release layer; a rigid material layer positioned inside said silicone rubber layer; and a silicone base layer positioned inside and affixed to the internal surface of said polyimide layer using an adhesive.

A guy marker apparatus for use on an associated guy wire includes a substantial rectangular body member having opposite parallel first and second edges and is foldable along a longitudinal axis parallel with the first and second edges. First and second connection portions are disposed at the first and second edges, respectively, for selectively interlocking the edges in slidable abutment to hold the main body member in a folded tubular conformation and selectively in a helical conformation. A tool for applying a guy marker apparatus onto an associated guy wire includes a main body member, an alignment portion adapted to guide the guy marker in an unlocked state relative to the main body member, and a production portion adapted to guide the marker in a self-locked state out from the main body member. A forming wall disposed between the alignment and production portions moves. the marker material between the unlocked and self-locked state based on relative movement between the tool and the guy marker material. A dispensing system for a bulk roll of coiled guy marker material includes a housing having a cavity adapted to hold the coil of guy marker material having a shape memory. The housing includes an outlet opening whereby desired lengths of guy marker material may be drawn. The bulk roll includes coiled flattened layers of plastic guy wire marker material having an inherent shape memory characteristic.

A connector assembly includes a male connector element that is manually expandable to control tightness of fit in a and a female connector element. The male connector element is having a first and a second portion configured by longitudinally bi-furcating the male connector element and includes a chamfered portion, a radially adjusting mechanism and a screw. The chamfered portion is axially configured on male connector element and receives the radially adjusting mechanism that moves the first and second portions relative to each other. The screw axially passes through male connector element and radially moves the radially adjusting mechanism to adjust the gap between the first and second portions to adjust external dimension of male connector element. The female connector element is having a tubular configuration that receives male connector element and is having a plurality of longitudinal slits configured thereon, walls of the female connector element are urged radially inwards towards the male connector element to maintain contact there-between by a spring element.

A tubular formation technique utilizing centrifugal casting incorporating a moveable launder system to deliver molten alloy along an extended length within a centrifugal caster to form a hollow tubular precursor of extended length. The technique is adaptable to all alloy systems but may be particularly suited for so called “hard alloys” that are susceptible to substantial work hardening or are difficult to extrude.

A liquid level sensor for measuring liquid levels in underground and above ground containers includes a frame formed to have an elongate hollow tubular configuration that encloses a cavity. A cam pivot has an end extending into the cavity from a first inner wall portion of the frame. A cam is arranged to be pivotal about the end of the cam pivot. A float is placed in the cavity. A spring is arranged to bias the cam arm into contact with the float to force a side portion of the float into a locked position in frictional engagement with the second inner wall portion of the frame. A cam actuator pivotally mounted in a lower end portion of the frame exerts a force on the cam arm to release the float from the locked position when the lower end of the frame contacts the container bottom.

A gradient coil system for a magnetic resonance tomography apparatus has a layer structure including a gradient coil layer and a cooling layer. The cooling layer is fashioned as a plate heat exchanger, composed of plates, for cooling the gradient coil layer. In this way, a highly efficient cooling of the gradient coil layer is achieved with a lower structural height compared to conventional tubular configurations.

In a method and an apparatus for treating tubular knitted goods containing elastomeric fibers, the goods are effectively relaxed, expanded, and heat fixed or set in the desired expanded condition, while maintaining the tubular configuration of the goods and without cutting open and re-sewing the tubular configuration of the goods. The tubular knitted goods are continuously transported through a relaxing process followed by a heat fixing process and then a cooling process, while constantly maintaining the tubular structure of the goods. The goods are expanded in the radial or width direction by a tubular expander, and in the lengthwise direction by being transported between a feed roller arrangement and a draw-off roller arrangement operating at different transport velocities respectively. The temperature in the heat fixing chamber is preferably over 200 DEG C. and the transport velocity of the tubular knitted goods can be greater than 18 m / min.

A tubular storage assembly and method of making the same is disclosed. The present invention provides a tubular storage assembly that has an outer shell of heavy weight material such as an un-cut leather hide. The outer shell material is formed into the desired shape having two opposite edges that are configured to mate in the finished assembly. A zipper or other suitable fastening system is stitched onto the opposite edges while the shell material is flat. The mating edges are drawn together and the fastening system engages to retain the shell in the tubular formation. Finally the fasteners are concealed by permanently adhering a cover strip over the fastening system. As can be seen in this manner the formation of a fully stitched tubular storage assembly is provided that overcomes the de-lamination problems often encountered in the prior art.