Abstract:
A prosthesis can be configured to be deployed within a body cavity. The prosthesis has an expandable frame, a plurality of proximal anchors, and a plurality of distal anchors, where the various anchors are connected to the frame. Radial expansion of the frame can cause the ends of the proximal anchors and the ends of the distal anchors to draw closer together.
Abstract:
A double-sealed cross-port fitting for use in a series progressive divider valve comprises an adapter body, a passage and a ring segment. The adapter body extends axially from a first end to a second end and includes an adapter segment and a coupling segment. The adapter segment is positioned at the first end and is configured to be coupled to another component. The coupling segment is positioned at the second end, extends from the adapter segment, and is configured to be inserted into a valve body. The passage extends through the adapter body from the first end to the second end. The ring segment extends radially from the coupling segment and is configured to engage the valve body. The ring segment forms a first seal face between the ring segment and the adapter segment and a second seal face between the ring segment and the second end.
Abstract:
A replacement heart valve can comprise a valve body and an elongate frame. The valve body can define a plurality of leaflets adapted to move between an open state and a coapted state. The elongate frame can be configured to move between a radially compacted state and a radially expanded state, the frame comprising a plurality of struts. Stitches attach the valve body to the plurality of struts. At least one of the stitches can be a loose stitch configured to freely slide over the corresponding strut when the frame is moved between the radially compacted and radially expanded states.
Abstract:
Disclosed herein is a method for processing an orifice capable of processing recessed portions and orifices, each having a unique hole diameter different from each other, to high positioning accuracy and in a short time.A press includes: a B-axis angle indexing device 3 disposed on a base 2b, the B-axis angle indexing device 3 including a table B; an A-axis angle indexing device 25 disposed on the table B, the A-axis angle indexing device 25 including a table A; a chuck 32 disposed on the table A, the chuck 32 for holding a work; a base Z 6 disposed on a base, the base Z 6 being operable in an axis Z-direction; a base X 8 disposed on the base Z, the base X 8 being operable in an axis X-direction; a punch holding portion 13 disposed on the base X, the punch holding portion 13 being operable vertically in an axis Y-direction; and a plurality of punches 19, 22 held on the punch holding portion in parallel with the axis Z. The press is used to perform a pressing cycle at a desired position by changing a posture of the work and moving the punch in the Z-direction continuously using punches having different leading end diameters and shapes with the work held in the chuck.
Abstract:
A series progressive divider valve comprises a valve body and pistons. The valve body comprises a fluid inlet, piston bores, outlet bores, porting and undercuts. The fluid inlet extends into an exterior of the valve body. The piston bores extend through the valve body from a first end to a second end. Each piston bores includes a piston. The outlet bores extend into the valve body, each outlet bores comprises a first set of outlet bores and a second set of outlet bores. The porting forms a plurality passageways connecting the piston bores to each other and with the outlet bores such that when high pressure fluid is applied to the inlet each of the pistons reciprocates from the first end to the second end in sequence. An undercut is located at an intersection between each passageway and piston bore.
Abstract:
A method to manufacture a valve using metal injection moulding is disclosed. The valve housing comprises a welding cap for welding the upper part of the valve to the valve housing. The welding cap is placed so the upper part can be welding to the housing without damaging the inner cavity of the housing. There is a gab between the welding cap and the inner liner so the heat from the welding to not damage the inner liner allowing the inner parts of the valve to move freely.
Abstract:
The method for manufacturing a solid housing, in particular a valve housing for an electromagnetically operable valve, is characterized in that the following method steps are used: a) providing a sheet metal strip made of a magnetic or magnetizable material, b) introducing an additive into a middle area of the sheet metal strip and fusing there for forming a non-magnetizable structure, c) cutting the sheet metal strip into a sheet metal piece of desired width, d) deforming the sheet metal piece into a sleeve shape, e) mutual fastening of the cut edges now facing each other and running in the longitudinal direction of the sleeve for forming a sleeve blank, f) final machining of the sleeve blank until a desired geometry of the housing is achieved. The housing is suitable in particular for use in fuel injectors in fuel injector systems of mixture-compressing spark-ignition internal combustion engines.
Abstract:
A nozzle for delivering a measured quantity of viscous liquid including a flared opening defined by a horizontal perimeter and a flare wall extending inward from the perimeter, a cylindrically-shaped barrel wall extending from the flare wall downward to a break point defined by a circle parallel to the flare opening and spaced-apart therefrom, a cone-shaped wall extending downward from the circular break point and inward therefrom to a circular exit opening, and a small-diameter exit tube extending from the circular exit opening to a circular exit aperture.
Abstract:
A flapper base provides a flapper base body with a hinge portion unitarily formed thereupon and a flapper seat surface formed within the flowbore of the body. The flapper base may be formed from a single section of tubular metallic stock. In a method of forming a base, the stock is gripped by a rotary clamp, and a five-axis milling machine is used to cut away portions of the stock section and to form the seat surface.
Abstract:
In accordance with various aspects of the present invention, methods and apparatuses for designing and configuring dissimilar material retention, specifically a valve plug assembly, are disclosed. The methods and apparatuses enable the application of a wider range of materials in a valve plug assembly than previous valve plug assemblies, and also increase the operational temperature range of the valve plug assembly. In an exemplary embodiment, a valve plug assembly comprises a plug head, a collet surrounding the plug head, a plug base adjacent to the collet, and a retainer surrounding the tapered outside surface of the collet and the plug base, where the plug head extends past the collet and the retainer. The valve plug assembly is configured to create an interference fit of the various components.