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US 5,965,239 AGranted
Plastics housing
AssigneeITT Manufacturing Enterprises, Inc.
InventorsBernd Walther, Christof Heuberger, Martin Csermak, Hans-Peter Rienhardt
Life of this patent
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AssigneeITT Manufacturing Enterprises, Inc.
InventorsBernd Walther, Christof Heuberger, Martin Csermak, Hans-Peter Rienhardt
Estimating the term…
A casing for a drive unit has a casing base body which is sealed by means of a cover unit. The casing base body consists of plastic, while the cover is produced from metal. It is desirable to form the edge of the casing in such a manner that the cover is supported on the casing base body in a flat manner. Since, within molding technology, there are a few difficulties in forming a continuous edge, a number of elevations, which serve as a support surface for the cover, jut out onto the edge of the cover. By means of a finishing of the casting mold, it can be achieved, in a simple manner, that the sealing surfaces of the elevations come to lie in one plane. The sealing of the casing cover relative to the casing base body is carried out by way of a sealing unit which is supported on the edge of the casing and leaves the elevations free.
A plastic casing with a depression, comprising:
A process for producing a casting mold for a casing, wherein, at first, a plastic casing with elevations is produced with a temporary casting mold, in which casing a difference between a relative height of each of the elevations one to another are measured, whereupon the casting mold is finished to equalize points corresponding to the measured elevations, and wherein the casting mold thus finished serves as pattern for the further production of casings.
Dependencies are inferred from the claim text.