61 results about "Cylindrical geometry" patented technology

Method of hollow micro-projections having side walls and at least one opening in a side wall, by a molding technique. The hollow micro-projections are defined by a first, negative mold defining the exterior shape of the micro-projections and a second, positive mold defining the hollow interior shape of the micro-projections. The method includes injecting a moldable material into the space between the two molds, in a state where they have been brought together. The positive and negative molds each have an essentially cylindrical geometry. In the process of bringing the molds together, the mold halves are laterally off-set with respect to each other, such that the distance between an inner wall of the negative mold and the positive mold in the area, ranges from zero to a finite distance. Micro-projections and arrays of micro-projections are also disclosed.

A snorkel and pad for use with a formation testing tool is formed with a cylindrical geometry at the interface where the snorkel and pad contacts the inner surface of a borehole. The cylindrical geometry reduces or eliminates gaps that a flat interface surface would leave between the snorkel and the inner surface of the borehole, reducing the possibility that a surrounding pad could extrude through the gap. The snorkel is prevented from rotating during operation, ensuring the correct orientation of the cylindrical geometry interface surface relative to the inner surface of the borehole. The snorkel may be used as part of a formation testing system.

A process of repairing a component, a repair tool for a component, and a component are disclosed. The process includes removing material from a region of the component. The removing forms a through-cut in the component, forms a substantially partial-frustoconical geometry in the component, forms a substantially partial-spherical geometry in the component, forms a substantially partial-elliptical geometry in the component, forms a substantially partial-cylindrical geometry in the component, is in a direction substantially perpendicular to a surface of the component, is in a direction substantially inclined with respect to the surface of the component, or a combination thereof. The repair tool includes a securing mechanism and a cutting portion for removing a region. The component includes a region formed by removing material.

Molten salt solar receiver and procedure to reduce the temperature gradient in said receiver. The receiver consists of at least one panel of semi cylindrical geometry, formed by a combination of vertical pipes. The receiver (10) is supplied with a heat transfer fluid made up of molten salts which originate from a recirculation system which is composed of a mixture deposit (6), a hot salt storage tank (9) and a cold salt storage tank (8); the mixture tank (6) which is supplied by a part of the hot heat transfer fluid (4) which exits the receiver (10) and the cold heat transfer fluid (5) which exits the cold salt storage tank (8); the hot salt storage tank is connected to the exit of the receiver (10) so that a part of the heat transfer fluid which does not recirculate is stored (3).

The invention relates to an electromagnetic actuating device (10) for a valve, having an armature (28) which is arranged in a hollow cylindrical armature chamber (28) so as to be axially displaceable between two axial stops (52, 54), wherein the armature chamber (26) is delimited by a magnet yoke (18; 22), wherein an electrical coil (24) extends coaxially around the armature (28), and wherein the magnet yoke (18, 22) is at least partially arranged in a housing (12). According to the invention, the actuating device (10) is characterized in that the armature (28) has a cylindrical geometry with a base (32) remote from the housing and with a hollow cylindrical end section (40) situated axially opposite, in that the base (32), which is remote from the housing, of the armature (28) is connected to an actuating plunger (34), in that a guide sleeve (42) is mounted axially onto the hollow cylindrical end section (40) of the armature (23), and in that, on that end of the guide sleeve (42) which is remote from the actuating plunger, there is arranged or formed an adhesion prevention device (84) which prevents or at least greatly impedes axial adhesion of the armature (28) to the magnet yoke (18, 22). The guide sleeve (42), which can be produced with very high accuracy in terms of manufacturing, with integrated adhesion prevention device (84) makes it possible to realize a reduction in width of the parasitic air gap between the armature (28) and the magnet yoke in order to increase the actuation forces of the actuating device (10) with a simultaneously reduced number of components.