417results about How to "Small cross section" patented technology

An intervertebral disc nucleus replacement is provided that is configurable into a first configuration to be assumed while the replacement is implanted in the nuclear cavity and a second configuration to be assumed during the procedure of inserting the replacement into the nuclear cavity. The first configuration may have an accordion-like structure formed by a plurality of sections folded in an alternating, zigzag-like manner, and may be sized and shaped to conform to the nuclear cavity. The second configuration may be formed by straightening the plurality of folded sections into an unfolded, elongated, linear member, thereby affording a smaller effective cross-section. The nucleus replacement may be made of an elastic material having shape memory and may be formed so that the first configuration is an unmanipulated or relaxed configuration and the second configuration is a manipulated or unrelaxed configuration.

The present invention relates to biodegradable PHA copolymers comprising at least two randomly repeating monomer units. The present invention further relates to a plastic article comprising a biodegradable copolymer, wherein the biodegradable copolymer comprises at least two randomly repeating monomer units (RRMU) wherein the first RRMU has the structurewherein R1 is H, or C1 or C2 alkyl, and n is 1 or 2; the second RRMU has the structureand wherein at least 50% of the RRMUs have the structure of the first RRMU. The present invention further relates to an absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet comprising a film comprising a PHA of the present invention and an absorbent core positioned between the topsheet and the backsheet.

Fiber optic cables and assemblies for routing optical networks closer to the subscriber. The fiber optic cables have a small-cross section yet robust design that is versatile by allowing use in aerial application with a pressure clamp along with use in buried and/or duct applications. Additionally, the fiber optic cables and assemblies have a relatively large slack storage capacity for excess length. Assemblies include hardened connectors such as plugs and/or receptacles suitable for outdoor plant applications attached to one or more ends of the fiber optic cables for plug and play connectivity.

Expandable medical implants for maintaining support of a body lumen are disclosed. These implants comprise an axially-radially nested, diametrically expandable, moveable vascular device for enlarging an occluded portion of a vessel. The device can be configured to allow for motion such as translating and/or slide and lock. One advantage of the axially-radially nested stent is that it maintains the expanded size, without significant recoil.

The present invention relates to biodegradable PHA copolymers comprising at least two randomly repeating monomer units. The present invention further relates to a plastic article comprising a biodegradable copolymer, wherein the biodegradable copolymer comprises at least two randomly repeating monomer units (RRMU) wherein the first RRMU has the structure wherein R1 is H, or C1 or C2 alkyl, and n is 1 or 2; the second RRMU has the structure and wherein at least 50% of the RRMUs have the structure of the first RRMU. The present invention further relates to an absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet comprising a film comprising a PHA of the present invention and an absorbent core positioned between the topsheet and the backsheet.

The invention relates to a device for crankcase ventilation of an internal combustion engine, comprising a ventilation duct extending from the crankcase to an induction tract of the internal combustion engine, whereby at least one oil vapor separator causing a drop in pressure is arranged in said duct and a crankcase vacuum control valve is arranged upstream or downstream therefrom and can be adjusted according to the pressure in the crankcase such that a lower pressure threshold valve in the crankcase is respected. The novel device is characterized in that a discharge duct extending from the crankcase to the induction tract of the internal combustion engine is also provided, whereby a crankcase overpressure limiting valve is disposed inside said duct and can be adjusted in a pressure-dependent manner to ensure that an upper pressure threshold in the crankcase is not exceeded.

A light-emitting apparatus and a related projection system. The light-emitting apparatus comprises an excitation light source generating an excitation light and a first supplemental laser source generating a first light; a wavelength conversion apparatus comprising a first wavelength conversion layer for absorbing the excitation light to generate a converted light without absorbing the first light; the wavelength conversion layer receiving at one side thereof the excitation light and the first light and emits at same side at least a portion of the first light; a light guide apparatus comprising a smaller first area and a larger second area, the first light and the excitation light respectively entering the first and second areas via a first optical path, and being respectively guided by the first and second areas to the wavelength conversion apparatus; the second area also guiding the converted light and the reflected first light to a second optical path.

A clutch actuator is provided for operating a clutch between a drive motor and a gearbox on a motor vehicle, in particular a commercial vehicle, including a linearly operating pin, acting on a release mechanism which is coaxial to a mid-axis of the clutch. The pin is arranged in a plane essentially perpendicular to the mid-axis of the clutch and coupled eccentrically to a rotating body of a gear mechanism, converting the rotating movement thereof into a linear movement of the release mechanism.

This invention relates to a broadband single ridge waveguide slot array, resolving that the size, weight, loss, scanning angle and other aspects of existing waveguide slot array can not meet the special requirements. Its features are: the radiation waveguide has symmetric metal-single ridge on the center line of hemline and rectangular cross section, which connects with the feeding waveguide just below the bottom. The feeding waveguide has symmetric metal-single ridge on the hemline centerline. Coupling gap is set between radiation and feeding waveguide horizontally. The invention uses a single-ridge radiation waveguide to reduce the width of antenna, divides array into a number of sub-ones and feeds by power divider to improve the working bandwidth, uses ridge waveguide antenna to improve efficiency and reduce processing difficulties, uses coaxial connectors to easily realize impedance matching.

Method of manufacturing a blade root of a wind turbine blade and wind turbine blade having an aerodynamically designed blade portion and a blade root adapted for releasable attachment to a hub of a wind turbine, said blade root being of laminated construction and comprising a plurality of fully bonded bushings (4) extending largely in the longitudinal direction of the blade, which bushings (4) are provided with an internal thread (5) for mounting bolts for releasable attachment to the hub, wherein the bushings (4) comprise a first portion (6) and an extension portion (7) having gradually increased flexibility in the direction away from the first portion (6) to provide a light blade of high strength.

A multi-component endovascular stent system (10) includes an outer generally tubular stent (20), configured to assume radially-compressed and radially-expanded states, and an inner generally tubular stent (22), including a braided metal wire mesh (24) including wire, and configured to assume a radially-compressed and longitudinally-elongated state and a radially-expanded and longitudinally-contracted state. The inner stent (22) is configured to be nested in the outer stent (20), such that the inner and the outer stents (22, 20) are fixed together when the inner stent (22) is in its radially-expanded and longitudinally-contracted state and the outer stent (20) is in its radially-expanded state.

The invention relates to a piston (1) of an internal combustion engine comprising an upper part (3) made of steel and a bottom part (2) bonded by means of friction-welding in the region of a contact geometry (4) by means of joining bars (10a, 10b; 11a, 11b) to form an assembly. At least one cooling channel (7) permeated by a cooling agent is integrated in the piston (1), wherein a lubricating oil of the internal combustion engine enters an inlet opening (14) as a cooling agent by means of a free stream of an injector, flows through the cooling channel (7), and exits via an exit opening (15). In order to introduce the cooling agent into the cooling channel (7), the inlet opening (14) is associated with a flow pipe (13) mounted in the bottom part (2) and protruding out of a cooling channel floor (19), the opening (17) thereof being disposed above weld coils (12a, 12b) of the friction welder.

Medical devices and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or be used in variety of other procedures. The systems may employ a self expanding stent restrained by one or more members released by an electrolytically erodable latch. Such release means do not connect directly to the implant, though one or more portions may contact it.

The invention discloses a preparation method of grafted SiO2 particle cluster orientation reinforced polyester fiber. The method comprises the steps of carrying out vacuum drying on a polyethylene terephthalate (PET) chip and pomegranate-shaped polymethyl methacrylate (PMMA)/SiO2 graft composite microspheres; mixing the dried PET chip granules and the dried PMMA/SiO2 graft composite microsphere powder, feeding the mixture into a melt spinning machine, and carrying out melt extrusion; cooling, oiling, and carrying out spinning draft in a drawing machine to obtain the grafted SiO2 particle cluster orientation reinforced polyester fiber. According to the method, the grafted SiO2 particle clusters in the composite microspheres are sequentially arranged and regularly oriented along the axial direction of the fiber and the oriented SiO2 particles are connected front and back by carrying out melt blending, extrusion and drawing on the composite microspheres and polyester PET resin in the melt spinning machine and a spinning draft machine, so that a beam-shaped arrangement structure which takes the SiO2 particles as crosslinking points and PMMA graft chains as connecting lines can be built in PET fiber, and the polyester fiber finally has better mechanical strength.

The invention concerns a suction muffler for a refrigerating machine with a housing, in which at least one chamber is arranged and which has an inlet opening (7), an outlet opening and an oil discharge opening.

It is endeavoured to avoid that too much oil remains in the chamber.

For this purpose, an oil collecting room is arranged to be connected to the bottom end of the chamber, the oil discharge opening being arranged at the bottom end of said oil collecting room.

A pontoon and water flow power generation combined power station comprises a pontoon. A belt hydraulic engine type water flow power generation device, a solar power generation device and/or wind driven power generation device are arranged on the pontoon, and the belt hydraulic engine type water flow power generation device is provided with an automatic working water level regulating unit, a super-flood preventing unit and a float cleaning unit. A belt hydraulic power generator, a magnetic suspension wind driven power generator and a solar power generator are assorted mutually and are integrated with the shore supply to realize interaction and compensation, and specifically, power generated from flood and/or wind and solar energy in peak periods is fed back to the shore supply, and the shore supply resupplies power for the pontoon when in off-peak periods of flood and/wind and solar energy, so that uninterrupted power supply is formed, and the multipurpose pontoon with new clean energy self-generating devices is assembled. Besides, automatic control and dispatching of various power supplies can be realized, and accordingly the pontoon and water flow power generation combined power station has the advantages of operational simplicity, safety and reliability, high efficiency, adaptability to non-professional management, and can be used as a composite marine facility with double functions of the pontoon and the power station or can be used as a special shore power station utilizing integral energy.

The invention discloses a multichannel quartz crystal microbalance detection device which comprises an upper needle probe, a lower needle probe, a base, a quartz wafer, a silica gel gasket and a sealing cover, wherein the upper surface of the base is provided with a base groove; the quartz wafer is embedded in the base groove; the lower surface of the quartz wafer is provided with a plurality of quartz wafer grooves of which the openings are downward; the lower surface of the quartz wafer is coated with a layer of lower electrode; the leading edge in the corresponding position on the back side of each quartz wafer groove is coated with an upper electrode; the silica gel gasket is arranged on the base; a vertically-penetrated central long through hole is arranged on the silica gel gasket in a position corresponding to the quartz wafer groove; the sealing cover is positioned on the silica gel gasket; the sealing cover is respectively provided with a sample inlet channel and a sample outlet channel; the upper needle probe is connected with the upper electrode through the sealing cover and the silica gel gasket; and the lower needle probe is connected with the lower electrode through the base. The detection device can simultaneously detect different components in multiple substances to be detected, and improves the detection precision.

A nozzle for a dust collecting machine, especially a nozzle for a hard floor is provided with a nozzle head part (4) placed on a floor and a nozzle main body (5) for connecting the part 4 to the dust-collecting machine. A connection short pipe (6) is formed at the main body (5), the whole nozzle (2) can be moved by traveling wheels (10) or a sliding surface and a suction duct (7) extended through the main body (5) from the pipe (6) opening at the part (4) is provided. In order to develop the nozzle of the dust collecting machine of a kind of topic in an advantageous method so as to attain, e.g., the improved suction of the peripheral part like the place along the core print and improved approachability to the corner part and the recess, the part (4) is made rotatable with respect to the main body (5).

In a method for the treatment of water by cavitation in a cavitation device, the water to be treated passes through an annular cavitation zone (15) which exists between two mutually opposite annular structures (7, 8) which rotate relative to one another and which have teeth (16, 17) directed substantially axially towards one another. Here, the water flows along cavitation surfaces which are provided on the face sides of the teeth (16) of a first (7) of the two annular structures and which are inclined in the circumferential direction such that, viewed in the relative direction of rotation (B) of the other, second annular structure (8), the spacings between said teeth and said second annular structure increase. The invention also relates to a cavitation device suitable for use with the method.