Abstract: Process of electroforming a metal structure, in particular a structure with a tip protruding from adjacent outer layers. The process comprises the following steps; a first layer is deposited on a substrate followed by one or more next layers partially overlapping the first layer to form an intermediate structure having a substrate surface facing the substrate; in a next step, the intermediate structure is removed from the substrate and one or more further layers are deposited on said substrate surface of the intermediate structure.

Abstract: A plate structure, such as a plate electrode, comprising two outer layers and an intermediate layer. Both outer layers are provided with a pattern of recesses, such as hexagonal or circular recesses. The recesses on one outer layer are offset with respect to the recesses in the other outer layer. The intermediate layer comprises through-holes, each through-hole connecting a recess at one outer layer with a partially overlapping recess at the opposite outer layer.

Abstract: A two-sided metal foil for use in an electrical shaver, which has a hair-receiving side and an opposite blade side, includes sheet of metal with a plurality of apertures through the sheet, in which at least the hair-receiving side of the foil is provided with a coating of poly(p-xylylene) and/or its derivatives.

Abstract: The invention provides a substantially flat sieve material of metal with sieve apertures, in particular sieve apertures with microdimensions. The sieve apertures comprise at least one passage in the plane of the sieve material parallel to a main surface, while the inlet and outlet can open onto the same main surface or a different main surface. The invention furthermore provides a method for the production of such sieve material by means of electroforming techniques in which a sacrificial material is used.

Abstract: A dispersion plate for dispersing a fluid includes two surface sides, a peripheral side and at least one through-opening which extends between the two surface sides, the opening including an inlet on one surface side, a passage, and an outlet on the other surface side, and the inlet, the passage and the outlet being delimited by an opening wall of the dispersion plate. The inlet, the passage and the outlet have a common longitudinal axis, the part of the opening wall delimiting the passage being substantially parallel to the common longitudinal axis, and the part of the opening wall delimiting the outlet, from the passage to the surface side where the outlet is located, being divergent relative to the common longitudinal axis. A method for producing a dispersion plate by electroplating is also described.

Abstract: The invention provides a substantially flat sieve material of metal with sieve apertures, in particular sieve apertures with microdimensions. The sieve apertures comprise at least one passage in the plane of the sieve material parallel to a main surface, while the inlet and outlet can open onto the same main surface or a different main surface. The invention furthermore provides a method for the production of such sieve material by means of electroforming techniques in which a sacrificial material is used.

Abstract: In an electroforming method for making metal products having a pattern of openings separated by dykes using a mandrel in an electroplating bath, metal from the bath is deposited on at least two electrically mutually insulated regions. Said regions comprise at least one main pattern for product dykes to be formed, which main pattern is electrically insulated from at least one ancillary pattern for a reinforcement to be formed. In the method according to the invention, first the ancillary pattern is connected to a current source in order to form reinforcement thereon and in order to effect an electrical connection between the ancillary pattern and the main pattern by means of the growing metal. During the continuation of the method, reinforcement is thickened and the product dykes are formed. A strong product having different thicknesses is therefore obtained in one step. A mandrel suitable for use in the method is also described.