110133 results about "Machining" patented technology

Embodiments of a gas diffuser plate for distributing gas in a processing chamber are provided. The gas distribution plate includes a diffuser plate having an upstream side and a downstream side, and a plurality of gas passages passing between the upstream and downstream sides of the diffuser plate. The gas passages include hollow cathode cavities at the downstream side to enhance plasma ionization. The depths, the diameters, the surface area and density of hollow cathode cavities of the gas passages that extend to the downstream end can be gradually increased from the center to the edge of the diffuser plate to improve the film thickness and property uniformity across the substrate. The increasing diameters, depths and surface areas from the center to the edge of the diffuser plate can be created by bending the diffuser plate toward downstream side, followed by machining out the convex downstream side. Bending the diffuser plate can be accomplished by a thermal process or a vacuum process. The increasing diameters, depths and surface areas from the center to the edge of the diffuser plate can also be created computer numerically controlled machining. Diffuser plates with gradually increasing diameters, depths and surface areas of the hollow cathode cavities from the center to the edge of the diffuser plate have been shown to produce improved uniformities of film thickness and film properties.

According to one embodiment of the invention, a system for fabricating a part includes a computer operable to control the fabrication of a three-dimensional part using a solid CAD model, a deposition station operable to deposit successive two-dimensional layers of material to fabricate the three-dimensional part, and a machining station operable to remove at least a portion of one or more of the deposited two-dimensional layers of material. The deposition station includes a substrate on which to fabricate the three-dimensional part, a welding-based deposition system having a welding torch, a laser-based deposition system having a laser head, a plasma powder cladding system having a plasma torch, and a multi-axis robot operable to, when directed by the computer, utilize one of the welding-based deposition system, laser-based deposition system, and plasma powder cladding system to deposit any of the two-dimensional layers of material. The machining station includes a multi-axis milling machine and an automatic tool changer. The milling machine is operable to, when directed by the computer, select from a plurality of machining tools associated with the automatic tool changer for use in the milling machine.

A golf club is manufactured by machining away a portion of the rear surface of a club face blank to form an elliptical central thickened region that tapers through a transition region to a thinner peripheral region. The elliptical central thickened region, transition region and the portion of the peripheral region surrounding the raised portion are formed in a single elliptical pass with a special cutting tool. The cutting tool, or “form cutter” has a conical lateral cutting surface, which forms the sloped transition region and the peripheral region surrounding it in a single operation.

Methodology for using laser machining techniques to modify a tissue for use in a medical device. In a representative mode of practice, relatively low energy laser machining is used to thin down at least a portion of a valved jugular vein. The thinned down vein may then be sutured to, or otherwise integrated with, a corresponding stent to make a percutaneous heart valve.

The systems and methods described herein include hexapod systems, Stewart platform systems and other mechanical movement systems, in which a set of independently moveable trucks support legs that couple to a working surface capable of holding a machine tool or other end-effector, and preferably wherein the trucks travel across a reference surface, such as around the circumference of a circle or along some other pre-defined geometrical pattern or track. For example, as described herein, the systems include Stewart platform machines that have six supportive legs each of which connects to a truck that can travel independently along a track. By coordinating the movement of these six trucks, the working surface can be moved in three dimensional space and can be oriented about three axes, providing control of roll, pitch and yaw.

The present invention provides an apparatus and method for storing a particle-containing liquid. The storage apparatus comprises a microfluidic convoluted flow channel having a plurality of article capture regions. The storage channel is preferably an isotropic spatially periodic channel. Sedimented particles can be resuspended following storage. This invention further provides a microfluidic analysis cartridge having a convoluted storage channel therein. The sample analysis can use optical, electrical, pressure sensitive, or flow sensitive detection. A plurality of analysis channels can be included in a single cartridge. The analysis channels can be joined to reagent inlets for diluents, indicators or lysing agents. A mixing channel can be positioned between the reagent inlet and the analysis region to allow mixing and reaction of the reagent. The cartridge can include additional valves and pumps for flow management. The analysis cartridge can be a self-contained disposable cartridge having an integral waste storage container. This invention further provides a sheath flow assembly. The sheath flow assembly includes a sample channel and first and second sheath fluid channels positioned on either side of and converging with the sample channel. The assembly also includes upper and lower sheath fluid chambers positioned above and below and converging with the sample channel. The flow cartridges of this invention can be formed by molding, machining or etching. In a preferred embodiment they are laminated. This invention further provides a method of fabricating a laminated microfluidic flow device. In the method, flow elements are formed in rigid sheets and abutting surfaces of the sheets are bonded together.

The invention discloses a thin-wall round pipe turning and clamping device. The thin-wall round pipe turning and clamping device comprises a slide block bracket for slidingly mounting inclined surface slide blocks, a screw rod for slidingly mounting and supporting taper sleeves, and a clamping base, wherein the slide block bracket and the screw rod are both fixedly mounted at one end of the clamping base; the taper sleeves are slidingly mounted on the screw rod; at least two inclined surface slide blocks fitting the taper sleeves to tightly eject workpieces from the inner sides are slidingly mounted on the slide block bracket; elastic cushion blocks are respectively arranged between all the inclined surface slide blocks and the workpieces; fastening nuts for tightly pressing the taper sleeves are arranged at the ends of the screw rod; and antiskid washers are arranged between the fastening nuts and the end surfaces of the taper sleeves. The thin-wall round pipe turning and clamping device has the characteristics of reasonable design, simple structure, good use effect, high machining precision, convenience for disassembly of the workpieces, low labor intensity, high production efficiency, low production cost and convenience for promotion and application.

A cold worked stainless steel bezel for a portable electronic device is provided. The bezel is secured flush to a housing to form part of the case of the portable electronic device. A brace that includes a slot for receiving a wall extending from the bezel is fixed to the housing. When the bezel engages the housing, the wall of the bezel is inserted in the slot of the brace and releasably held by a spring that engages both the brace and the wall. The bezel can be released by disengaging the spring, (e.g., using a special tool or a magnetic field). Because the bezel is manufactured from cold worked stainless steel, it is hard and resistant to impacts. Cold worked steel also facilitates manufacturing within design constraints and tolerances, and requires very little machining after manufacturing to comply with those constraints. The portable electronic device may include a personal media device, a mobile telephone, or any other suitable device or combination thereof.

A cutting insert is cooled during chip removing machining of a workpiece by conducting cooling medium through a porous supporting body of the insert. The cooling medium enters the insert through an inlet formed therein at a location remote from a cutting edge of the insert and exits the insert through an outlet formed in the insert at a location proximate the cutting edge. The discharged cooling medium impinges on, and cools, the workpiece.

A feed assembly for a reflector antenna having a unitary portion of dielectric material, a proximal end of the unitary portion configured for connection with the reflector antenna. The unitary portion having a waveguide portion extending between the proximal end and a sub reflector support having a sub reflector surface at a distal end. The waveguide portion and the sub reflector surface covered with an RF reflective material. The unitary portion may be cost effectively formed via, for example injection molding and or machining. Alternatively, the feed assembly may be formed as a horn feed, without a sub reflector.

The present invention is an interactive multi-media interface system which incorporates text, audio, and video graphics animation and other tools to interface a user with a device in an outside environment, such as a robotic device, machining or other tool. The interface system includes a computer workstation to allow inputs from a user, such as a machine operator, computer memory, and an interface computer program operating on the computer. The computer has a graphical user interface for interfacing the operator with the workstation and to allow interactive operation and control of the machine tool. The operator can provide inputs to the interface system by various input devices such as a keyboard, cursor, mouse, a stylus pointing device or a touch sensitive screen. The interface software shares access to and exchanges data with the computer memory.

A wax model of a required coping is produced using CNC machining techniques based on a virtual model of the coping created from digital data obtained from the intraoral cavity. The dental coping is then fabricated from the wax model.