Abstract: A one-way injector having a housing in which at least one mechanical spring energy store, at least one piston/cylinder unit, which can be at least temporarily filled with an active substance, at least one piston-actuating plunger and at least one tripping unit are arranged. To this end, the spring energy store comprises a preloaded spring element. The spring element is held in the preloaded position by a tension means surrounding at least a region of the spring. The tripping unit comprises a cutting tool which, in order to release the energy of the spring energy store, severs or weakens the tension means at least one point, the weakening immediately tearing the tension means. With the present invention, a one-way injector is developed which, with a small overall size, has only a few components and ensures reliable mounting and functioning with simple manipulation.

Abstract: The invention relates to a biopsy needle for obtaining material for histological examination of body tissue, in particular, of bone marrow, or for the isolation, culture and modification of body cells, comprising a cannula with a cutting edge and a manual turning handle and a stylet running in the cannula. At the end of the cannula is an internal thread and preferably an outer thread. An easily visible marking is preferably provided on the manual turning handle. On withdrawing the biopsy needle the biopsy sample is thus held in position in the cannula and the advancing is precisely controllable.

Abstract: A process for manufacturing a product from strip tape starting from a broad web of material includes the step of separating the web into individual strips with a smooth stripping roll, conveying each strip in a vacuum conveyor channel, turning the strips on their way to the channel or in the channel by about 90°, leading the strips together at the end of the channel one upon the other and thereafter processing the strips to form the final product.

Abstract: In order to produce a fuell cell stack which comprises a plurality of fuel cell units succeeding one another in the direction of the pile and wherein each of the fuel cell units comprises a housing incorporating at least one housing part consisting of a metallic material, such that the fuel cell units thereof are of simple construction and also exhibit an adequate electrically insulating effect and adequate mechanical rigidity even at a high operating temperature of the fuel pile, it is proposed that the fuell cell stack should comprise at least one distributor element which comprises at least one gas distribution channel for supplying a fuel gas or an oxidizing agent to a plurality of fuel cell units or for removing an exhaust gas or surplus oxidizing agent from a plurality of fuel cell units, wherein at least one housing part of at least one fuel cell unit is brazed to the at least one distributor element.

Abstract: Orally administrable film-shaped medicaments which contain the active substance deoxypeganine or/and a deoxypeganine derivative. The medicaments can be used for transmucosal administration of active substances.

Abstract: A process for isolating and/or identifying at least one active chemical substance from a mixture of active and inactive chemical substances, is characterized by the steps: a) adding a target to said mixture and forming a complex of target and at least one active chemical substance of the mixture, b) separating the complex from the inactive chemical substances of the mixture, and either c) liberating and isolating and/or identifying at least one active chemical substance from the separated complex or d) identifying at least one active chemical substance of the mixture by subtracting from a chromatogram of the mixture of active and inactive chemical substances a chromatogram of the mixture of inactive chemical substances which is obtained after separation of the complex, and possibly liberating and isolating the at least one active substance from the separated complex.

Abstract: In order to provide a method of producing an electrically insulating sealing arrangement for a fuel cell stack which comprises a plurality of fuel cell units that succeed one another along a stack direction by means of which the housings of the fuel cell units are connectable to one another in such a way that an adequate electrically insulating effect and adequate mechanical rigidity are ensured even at the high operating temperature, it is proposed that the method comprise the following process steps: producing a ceramic metal layer from a mixture of a ceramic material and a metal material and/or a metal precursor; and at least partially converting the metal of the ceramic metal layer into an electrically non conductive metal compound so as to produce a non conductive boundary layer.

Abstract: A device and method for configuring a hearing aid for a patient has an audiometer that generates test tones and at least one open loudspeaker, brought close to at least one ear of the patient, connected to the audiometer, for transmitting short-pulse test tones generated in the audiometer. Fixed signal intensities, different from one another, are set at the audiometer, and a configuration of the hearing aid is carried out as a function of the patient's individual hearing capacity.

Abstract: In order to provide a sealing arrangement for a fuel cell stack, which comprises a plurality of fuel cell units, which are arranged consecutively in a stacking direction, wherein the sealing arrangement has an electrical insulation effect, and which also has an adequate electrical insulation effect and an adequate mechanical strength at a high operating temperature of the fuel cell stack, it is proposed that the sealing arrangement comprises at least one ceramic-metal layer formed from a mixture of a ceramic material and a metal material.

Abstract: A process for manufacturing a product from strip tape starting from a broad web of material includes the step of separating the web into individual strips with a smooth stripping roll, conveying each strip in a vacuum conveyor channel, turning the strips on their way to the channel or in the channel by about 90°, leading the strips together at the end of the channel one upon the other and thereafter processing the strips to form the final product.

Abstract: A device for manufacturing a product from strip tape includes a roll that draws off and separates a web of material. The web of material is severed into individual strips in cooperation with a multiple circular knife roll. A vacuum conveyor channel is associated with each strip. The vacuum conveyor channel is designed such that each strip is turned on its way to the channel or through the channel by about 90°. The end of the vacuum conveyor channel brings the strips together at one site to form a unit and at that site there are provided a guide and a transport device for the further transport to conversion equipment.

Abstract: A process for manufacturing a product from strip tape starting from a broad web of material includes the step of separating the web into individual strips with a vacuum roll, conveying each strip in a vacuum conveyor channel, turning the strips on their way to the channel or in the channel by about 90°, leading the strips together at the end of the channel one upon the other and thereafter processing the strips to form the final product.

Abstract: The invention relates to the application of a projection to a metal layer of a metallic cylinder-head gasket for an internal-combustion engine having at least one elastic metal sheet, which is provided with one opening or a plurality of adjacent openings depending on the number of combustion chambers of the internal-combustion engine, a bead being provided in the at least one elastic metal sheet around each opening, at a distance from the latter, so that a straight section of sheet metal is left clear in the region of the edge of the opening, for which bead a spring travel limiter or stopper, which runs coaxially with respect to the bead and is formed by the projection, is provided, the projection being produced from a mixture which contains a plastic with a high mineral filler content. A mixture of an elastomer in particular with a filler which has been surface-treated by means of a silane is used.

Abstract: Processes for the production of a compound of the following formula (I) by converting a compound of formula (II) with 2-pyrrolidone used in excess relative to compound (II) and processes for the production of a compound of formula (III). The latter process includes preparing compound (I); a reduction reaction which yields compound (III) in salt form; and liberating compound (III) from the salt.

Abstract: In order to provide a sealing assembly for a fuel cell stack comprising a plurality of fuel cell units, which are arranged consecutively in a stacking direction, wherein each of the fuel cell units comprises a housing with at least one housing part made of a metallic material, which also has an adequate electrical insulation effect and an adequate mechanical strength at a high operating temperature of the fuel cell stack, it is proposed that the sealing assembly comprises at least one intermediate element made of a metallic material, wherein the intermediate element is soldered to a housing part of a first fuel cell unit at at least one location by means of a metal solder and is secured to a housing part of a second fuel cell unit at at least another location, wherein the intermediate element and/or the housing part of the first fuel cell unit is provided with a coating made of a ceramic material.

Abstract: Planiform transmucosal pharmaceutical administration forms are disclosed, comprising a solid solution of the active ingredient in a phosphatidyl fraction, or a mixture of said phosphatidyl fraction with a copolymer of maleic acid and an alkyl vinyl ether. The administration forms are characterised by a low solubility in the buccal cavity, which gives a rapid and constant active ingredient release over an extended period. The above are particularly suitable for the treatment of the abuse of and dependence on addictive drugs.

Abstract: In order to provide a high temperature resistant adhesive based on water glass which is particularly suited for sticking metal substrates and which remains gas-tight and does not lose its electrical insulating properties even at high operational temperatures, it is proposed that the adhesive should comprise an additive in the form of boron nitride.

Abstract: A sealing structure in a fuel cell and/or an electrolyzer (particularly a solid-oxide fuel cell and/or a solid-oxide electrolyzer) is arranged between neighboring separator plates of a cell stack. The sealing structure is constructed in at least two layers, including at least one insulating layer and at least one sealing layer.

Abstract: In order to provide a component of a fuel cell unit that has an electric insulation effect at the operating temperature of the fuel cell unit and that has an adequate electrically insulating effect and an adequate mechanical strength also at a high operating temperature of the fuel cell unit, it is proposed that the component comprises a basic body and at least one electrically insulating insulation layer, which is disposed on the basic body and contains aluminium oxide, wherein the insulation layer is produced by anodizing an aluminium-containing layer disposed on the basic body.

Abstract: In order to provide a method for producing a soldered joint between a substrate for at least one electrode and a contact element of a fuel cell unit which results in the substrate being reliably soldered to the contact element but without impairing the functioning of the substrate by surplus solder material, it is proposed that the method comprise the following process steps: applying a mixture, which comprises a soldering material and a bonding agent containing an elastomer material and/or a resin, to the contact element and/or the substrate; bringing the substrate and the contact element into contact; soldering the substrate and the contact element by heating them up to a soldering temperature.