170results about How to "Small wall thickness" patented technology

A catheter having an elongated shaft formed of a polymeric tubular member with at least a section having a lubricious inner layer defining the guidewire lumen, a coiled support member at least partially embedded in the lubricious inner layer, and an outer layer on an outer surface of at least a distal portion of the lubricious inner layer. In a presently preferred embodiment, the coil supported polymeric tubular member forms an inner tubular member of a balloon catheter.

The present invention is an improved endovascular device particularly useful for use in transjugular intrahepatic portosystemic shunt (TIPS) procedures. The device employs a two-part stent-graft construction that provides a low permeability membrane to line the shunt and an uncovered stent portion designed to reside in the portal vein. The device provides numerous benefits over previous stents and stent-grafts used in TIPS procedures, including being more compact to deliver, being easier to accurately deploy, a controlled compacted surface with tucked apices, an improved stent winding pattern, and being more flexible in delivery and use.

A bladder catheter for transurethral introduction into the urinary bladder by the urethrae, includes an elastic catheter shank with a fillable balloon element secured thereto and connected to a filling channel incorporated into the wall of the catheter shank. The balloon element and the catheter shank are made of polyurethane, a polyurethane-polyvinylchloride mixture or similar polyurethane-based material.

An insert for forming an end connection in a uni-axial composite material, and an end connection comprising at least one insert, is disclosed. The insert comprises a sleeve which comprises a plurality of fibres having a multi-axial arrangement. At least a portion of the interior surface of the sleeve comprises a thread formation. A method of forming an end connection in a uni-axial composite material is also disclosed. The method comprises providing a sleeve comprising a plurality of fibres having a multi-axial arrangement and providing a thread formation on at least a portion of the interior surface of the sleeve. The sleeve is positioned and secured within the uni-axial composite material.

A ceramic wall-flow filter for filtering particulate matter from gases and methods for manufacturing such wall-flow filters are disclosed. The filter includes an array of porous ceramic walls defining a pattern of end-plugged inlet and outlet cells, and heat absorbing elements disposed within at least some of the outlet cells such that a bulk heat capacity of the outlet cells is greater than a bulk capacity of the inlet cells. The heat absorbing elements increase a bulk heat capacity of the filter without substantially interfering with a flow of gas through the porous ceramic walls by allowing thinner walls. According to the method, during the step of extruding or thereafter, heat absorbing elements are formed within at least some of the outlet cells such that a heat capacity of the outlet cells is greater than the inlet cells.

This brushless motor according to the present invention is provided with: a tubular stator case; a stator core; a rotore; a plurality of teeth which are integrally formed on an inner peripheral surface of the stator core; a coil bobbin mounted between the mutually adjacent teeth, which has a winding portion around which a coil is wound; a lead wire; and a wiring substrate which relays a connection between the lead wire and the coil, wherein: the coil bobbin has flange portions; one of the flange portions which is located on the inward in the radial direction has an enlarged member which protrudes outward from the surface of the flange portion; a pair of terminals which is connected to the wiring substrate is provided on the enlarged portion so as to be located more inward than a tip of the tooth in the radial direction.

A radially expansible annular stent is disclosed. The stent comprises a plurality of stenting turns around a lumen centred on a longitudinal axis. Adjacent turns of the stent are joined by connector struts. The stent annulus has a wall thickness related to the material from which it is formed. The radial thickness of the connector struts is smaller than that of the stent annulus. A method of making such a stent is also disclosed. The method includes cutting the connector struts from a tubular workpiece with a laser beam. The laser beam is aimed so as to be offset from a longitudinal axis of the workpiece to provide the reduced radial thickness of the connector struts.

Apparatus for heat-treating an elongate structural body part made from a blank compressed while being soft or from steel strip of hardenable 22 Mn B5 mod. steel sheet with a thickness of 1 mm to 3 mm, includes an apparatus for positioning the structural body part in substantially upright disposition. Placed in surrounding relationship to the structural body part is an induction element which can move from bottom to top, thereby being able to follow a contour of the structural body part and allowing to at least partially heat the structural body part to an austenitizing temperature suitable for hardening. Disposed adjacent to the induction element is a cooling unit which follows the induction element in movement direction. The induction element and the cooling unit are moveable relative to one another and connected to a tool carriage which is mounted to a column for movement in a vertical direction, in a transverse direction to the column and about a horizontal axis.

A filler pipe, wherein a flow path for a fluid is formed through multiple resin materials being extruded simultaneously and wherein a corrugated part is shaped through peaks and valleys disposed continuously, comprises an outer layer formed from a high density polyethylene, a barrier layer formed from EVOH with superior resistance to fuel permeation, and an inner layer, formed from high density polyethylene. The structure is such that d<L when the depth from the apex of the peak to the bottom of the valley is defined as d, and the distance from the apex of the peak to the barrier layer is defined as L.

The invention relates to a safety contact strip (1) that is regularly used as a closing edge safely device in squeeze and shear areas, for example, gates, machines or the like, having at least two conductive switch layers (2,3) in a non-conductive closed switching chamber (4) located inside a profile (6) that forms an outer jacket (5). In order to enhance quality while preserving a relatively simple structure of said strip, the profile (6), the switching chamber (4) and the switch layers (2,3) are configured as a single piece having at least one built-in conductor (7,8). In order to ensure safe switching even in case of low switch loads and unexpected direction, the switching chamber (4) is kept free in a cross section by spoke-shaped webs (9,10,11). The invention also provides for a cap for closing the front side of the safety contact strip.

A flame-retardant resin composition comprising (A)(1) a resin component containing an aromatic polycarbonate resin and a styrene-containing resin or (2) a resin component containing a polyphenylene ether resin and a polystyrene, and (B) a flame retardant that is a phosphoric ester of the following formula (I), wherein each of R1, R2, R3 and R4 is independently an aryl group having 6 to 12 carbon atoms, each of R5 and R6 is independently methyl or a hydrogen atom, each of R7 and R8 is methyl, m1 and m2 are 0 or integers of 1 or 2, each of a, b, c and d is independently 0 or 1, and n is 0 or an integer of 1 or 5.

A pulsed magnetic field is generated by a device having a magnet to be operated in pulse operation which contains at least one superconductive refrigerant-free winding that is disk-shaped or saddle-shaped. Also included is a refrigerating unit which has at least one cold head. A line system, having a refrigerant circulating in it according to a thermosiphon effect, thermally couples the winding to the cold head. The line system has a plurality of separate pipes lying next to one another. The pipes, open onto a common refrigerant distributor and closed at the other end, are thermally coupled to the surface of the disk-shaped or saddle-shaped winding.

In a bending head for bending rod-shaped and tubular workpieces, with a retainer that can be rotated about a rotational axis and that carries a bending mandrel at one axial end, and with at least two further tools, which each comprise a retaining body with, at its axial end facing the bending mandrel, a bending pin and which can each be rotated—in each case independently of the other tools—the retaining bodies of the tools are arranged concentrically to the retainer of the bending mandrel and pivotable about its rotational axis.

The present invention relates to a method and apparatus for continuously manufacturing calibrated round or profiled glass tubes having a predetermined inner profile. In the method molten glass emerges from an outlet opening of a melt feed. The molten glass is drawn over a shaping body so as to form a hollow drawing bulb. According to the invention, the drawing bulb is drawn over a profile forming body positioned downstream of the shaping body so that inner circumferential surfaces of the drawing bulb are deformed whilst abutting against outer surfaces of the profile forming body to form the predetermined inner profile. According to the invention the distance between the shaping body and the profile forming body can be changed for varying the wall thickness of the glass tube.

A connection is described for connecting two tubular fuselage portions of a missile. The inner diameter of the rim of a first tubular fuselage portion to be connected with a second tubular fuselage portion corresponds to the outer diameter of the rim of the second tubular fuselage portion to be connected to the first tubular fuselage portion, deducting a jointing tolerance, The rims of the tubular fuselage portion to be connected are provided with radial bores to accommodate connection screws, Clamp segments are mounted in the second tubular fuselage portion along the inner circumference thereof. The clamp segments define threaded bores, connection screws being screwed into these threaded bores.

A steam turbine including a rotor rotatable about an axis and a casing concentrically surrounding the rotor. A reduction in the starting times and reduced production costs may be achieved in that the casing includes a high-mass hollow-cylindrical basic carrier and a plurality of shells concentrically surrounding the basic carrier. The shells are each produced from a bent metal sheet and interspaces capable of being filled with steam are defined between adjacent ones of the plurality of shells.

A catheter having an elongated shaft, an inflatable balloon on a distal shaft section, and a distal tip member bonded to a surface of the distal end of the balloon. The balloon has a proximal skirt section and a distal skirt section sealingly secured to the shaft, and an inflatable section therebetween with an interior in fluid communication with the at least one lumen of the shaft. The distal skirt section of the balloon has a proximal portion, and a distal portion with a smaller outer diameter than the proximal portion. Preferably, the distal tip member has a proximal section with an inner surface bonded to an outer surface of the distal portion of the distal skirt section, and a distal section extending beyond the distal end of the balloon.

A shock absorber strut is provided including a tubular body, a clamping member, a steering knuckle, a fastening member and a positioning member. The tubular body is arranged at a lower region of the strut. The clamping member clamps the steering knuckle to the tubular body and includes a continuous slot along the steering knuckle and a fastening member which fastens the steering knuckle tubular body. The positioning member is a one piece component for positioning the clamping member with respect to the tubular body and includes a stop for positioning in the longitudinal direction and a projection for positioning in a circumferential direction. Optionally, a further positioning connection may be provided including a bead on the positioning member and a corresponding recess in the tubular body which engages the bead and allows the clamping member to be exactly aligned in the circumferential direction. Various welding processes performed on the positioning member and / or the positioning connection provide further strength and support to the strut.

A composite material containing inclusions of spherical shells in which each spherical shell encapsulates a rubber core with ferrite loading. The inclusions are embedded in a matrix material of syntactic foam. The spherical shells are made from glass and therefore acoustically transparent and in combination with the cores are statically stiffer than the surrounding matrix material. The composite material with the matrix material and inclusions allows the composite material to be acoustically dissipating with a stiffness in which the energy of forces associated with undersea platforms is resisted.

A bottle that has at least one thinnest portion in which the wall thickness of the bottle is less than 0.1 mm and preferably less than 0.05 mm, and a method for producing such a bottle.

A container made from thermoplastic material, of the type with a domed base, including a central projecting pimple, a peripheral support region and an intermediate arch, provided with ribs, extending from the central pimple to the support region but not therein, the ribs having a dihedral form with a straight section in a V in the medial plane, essentially parallel to the axis of the container and running into each other without a break. The ribs have a longitudinal profile which is curvilinear, the bases of the ribs, in the region thereof adjacent to the central pimple, extending higher than the base of said central pimple and the bases and crests of the ribs, in the region thereof adjacent to the support region, having curves merging progressively into a continuous rounding of unbroken curvature immediately above the support region such that the latter is essentially planar and continuous over the whole length thereof.

A ceramic wall-flow filter for filtering particulate matter from gases and methods for manufacturing such wall-flow filters are disclosed. The filter includes an array of porous ceramic walls defining a pattern of end-plugged inlet and outlet cells, and heat absorbing elements disposed within at least some of the outlet cells such that a bulk heat capacity of the outlet cells is greater than a bulk capacity of the inlet cells. The heat absorbing elements increase a bulk heat capacity of the filter without substantially interfering with a flow of gas through the porous ceramic walls by allowing thinner walls. According to the method, during the step of extruding or thereafter, heat absorbing elements are formed within at least some of the outlet cells such that a heat capacity of the outlet cells is greater than the inlet cells.

An arrangement to increase the thermal fatigue resistance of glass tubes having fluid flowing therethrough and being pressure-loaded. This arrangement comprises a glass tube, into which an interior component is inserted. The interior component can be designed as thin-walled tube or tubular component. In accordance with a first example the cavity enclosed by the interior component is hydraulically connected with the interior of the glass tube. The wall thickness of the interior component is smaller than the wall thickness of the glass tube and the interior component is partially free from a direct heat connection with the glass tube. In accordance with a second example the interior component increases the wall thickness of the glass tube. In this case the interior component is touching the interior circumference of the glass tube.