Abstract:
Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Herstellen gebogener Federbandabschnitte (3), insbesondere mit über die Abschnittslänge variabler Materialstärke. Hierbei werden eine aus drei voneinander beabstandeten Auflagestellen (6, 7, 8) gebildete Biegeeinheit (5) und eine dieser nachgeordnete Rückbiegeeinheit, die aus einer vierten Auflagestelle (17) besteht, von einem Federband (2) durchlaufen, wobei in einer Trenneinheit (20) gebogene und rückgebogene Federbandabschnitte vom Federband abgetrennt werden. Zur Erzeugung eines kompakten Aufbaus für diese Vorrichtung sind die dritte Auflagestelle der Biegeeinheit sowie die vierte Auflagestelle (8) der Rückbiegeeinheit verstellbar ausgebildet und werden mittels einer Steuerung (15) nach vorgegebenen Programmen in ihrer Zustellung bezüglich des Federbandes gesteuert.
Abstract:
A presently-preferred method of manufacturing a stacked core for a magnetic-induction device comprises cutting a sheet of magnetic material into one or more strips of the magnetic material so that a width of each strip changes along a length of the strip. The presently-preferred method also comprises cutting the strips to form a plurality of laminae having different widths. The presently-preferred method further comprises stacking and bonding the laminae to form a winding leg, an outer leg, or a yoke having laminae of relatively large width positioned at its approximate center, laminae of relatively small width positioned at its outer edges, and laminae of progressively decreasing width positioned between the center and the edges.
Abstract:
A fetal heart monitoring system preferably comprising a backing plate having a generally concave front surface and a generally convex back surface, and at least one sensor element attached to the concave front surface for acquiring acoustic fetal heart signals produced by a fetus within a body. The sensor element has a shape that conforms to the generally concave back surface of the backing plate. In one embodiment, the at least one sensor element comprises an inner sensor, and a plurality of outer sensors surrounding the inner sensor. The fetal heart monitoring system can further comprise a web belt, and a web belt guide movably attached to the web belt. The web belt guide being is to the convex back surface of the backing plate.
Abstract:
The invention relates to a method for producing hollow bodies (11, 211, 411) such as nut elements to be fastened to components (13, 213, 413) that usually consist of sheet metal. The invention especially relates to a method for producing hollow bodies with an at least substantially square or rectangular outline by cutting individual bodies from a profile (10, 210, 410) in the form of a profile rod or a reel after respective holes (98, 298, 498) have been punched into the profile, and optionally afterwards producing a threaded cylinder (110, 310, 510). The inventive method is further characterized in that before or after the punching of the profile a passage treatment is carried out in order to produce a cylindrical or annular projection (36, 236, 436), concentric to the punching or the intended punching, on the side (12, 212, 412) of the profile facing the component by flow of material. The projection is optionally shaped to an annular punched section in an additional molding cycle. The invention further relates to various hollow bodies, assembly units and molds for producing said hollow bodies.
Abstract:
A micromechanical structure (17) disposed on a base body (1) requires protection from environmental influences by means of a covering (2) while at the same time electrical contacts (9) for connecting the micromechanical structure are required. The inventive method makes it possible to bare the electric contact (9) by partially (19) or completely (20) sawing through the structure.
Abstract:
Method for manufacturing an electromechanical sensor element for converting mechanical forces produced by the movements and vital functions of a person into electric signals, in which method a sensor film (11) is provided with metallic electrodes (15, 16) placed on either side of it, at least one of said electrodes being a signal electrode, in which method the sensor element is produced by cutting it off a larger amount of sensor element material, in which method in the manufacture of sensor element material the electrodes are created in a continuous roll-to-roll process, and in which method the sensor element material is produced by laminating as a continuous roll-to-roll process. At least the sensor element material consists of repeated electrode patterns and a sensor element of a desired size and/or shape is formed by cutting the material between the patterns.
Abstract:
The invention concerns a drip irrigation pipe (1) comprising a tube (2) designed to be connected to a pressurised water source. The tube is provided with two lateral lapped edges (3a, 3b) superposed on each other and are formed integral with said tube. The pipe (1) further comprises, at intervals, orifices allowing water to trickle through (11) communicating the tube (2) inside with outside environment. The invention is characterised in that a strip (4) is fixed in sealed manner between the lapped edges (3a, 3b), and the orifices (11) are produced in said strip (4) by swaging said strip (10, 10A) so that they constitute through orifices substantially on either side of a longitudinal plane of symmetry (P) of the strip (10, 10 A), each trickling orifice (11, 11A) comprising at one first end an inlet chamber (13) designed to emerge into one of said pipes and at the other end a discharge chamber (14) designed to emerge outside said one pipe; the swaging process being also designed so that the discharge chambers of the trickling orifices located substantially on either side of the plane of symmetry (P) of the strip do not communicate with each other.
Abstract:
An apparatus for manufacturing a drainage line unit includes a mandrel (20) having an inner cavity (30). Rear (24), upper (26) and front (28) openings communicate with the mandrel cavity. A pipe feeder (36) feeds perforated vent pipe (38) through the inner cavity (30) of the mandrel (20). The pipe is positioned within the inner tube cavity (30) so as to defined a void space between the pipe and the wall of the mandrel. A hopper assembly (40) is positioned for feeding a plurality of plastic bodies (46) into the cavity wherein a blower (44) produces a sufficient air flow through the mandrel cavity for moving the plurality of plastic bodies (46) to substantially fill the void space so that the pipe emerges from the front opening of the mandrel surrounded by the plurality of plastic bodies. A sleeve feeder (50) feeds a continuous sleeve of netting (53) over the plurality of plastic bodies (46) and the vent pipe (38). A separator (60) fastens the continuous sleeve of netting (52) to the vent pipe (38) and cuts the drainage line, to form a completed drainage line unit (62).
Abstract:
Methods of fabricating medical vascular catheters having sections of differing flexibility are disclosed. At least one distal section having different flexibility are formed in a process comprising the steps of: (1) forming a continuous tubular inner jacket preferably of an inner liner and a reinforcement layer; (2) forming initial layer segments having an initial layer thickness along the length of the inner jacket from a material of first durometer hardness, whereby each initial layer segment is separated by a separation distance; (3) forming a final layer of a material of second durometer hardness with a second layer thickness over the tubular inner jacket along the separation distances and over and/or against the proximal and distal initial layer ends of the initial layer segments to form a continuous catheter body tubing; (4) severing the continuous catheter body tubing into catheter body lengths; and (5) completing the catheter fabrication at the proximal catheter body end and the distal catheter body end. Centerless grinding of the catheter body or body tubing, formation of Intermediate catheter body sections, distal soft tips, and discontinuities in the reinforcement layer formed prior to step (2) are also disclosed.
Abstract:
A brushless motor and a method of manufacturing the motor capable of reducing the number of coils to 1/N and increasing productivity N-fold (N, an integer of 2 or more); wherein N pieces of stators, each having S/N pieces (S/N, integer) of coils in each phase and having parts constituting a stator provided with coils and all arranged within a range of 1/Nx360 DEG around the rotation shaft of a disc-shaped rotor (8), are manufactured concurrently, by using a device for manufacturing stators in a brushless motor in which coils (1 to 3) in each phase form a pair of coils that are disposed in positions symmetrical with each other with respect to the rotation shaft of the disc-shaped rotor (8) and are connected electrically with each other.