Patent ID: 8061350
Filing Date: 2011-11-22
Classification: B05B,F04B

Abstract:
1. A process of assembling a device for delivering a medicament with improved metering accuracy, wherein at least one first component and at least one second component are provided, which are sealingly brought into engagement with one another, wherein the at least one first component is a ring-shaped seal produced in batches, wherein at least one significant magnitude of the at least one first component in each batch is selected from the diameter, cross-section, volume, or compressibility of the at least one first component and is determined only by random sampling from which the mean and the standard deviation of the at least one significant magnitude are determined, the mean and the standard deviation determined are used as essential values for division of the at least one second component into groups, wherein at least one decisive significant magnitude for all the at least one first components of the respective batch is determined from the at least one significant magnitude, wherein the at least one second component is a guide tube for a piston and is divided into groups which differ by at least one essential dimensional value of the at least one second component, wherein, depending on the at least one decisive significant magnitude, one of the groups matching the respective decisive significant magnitude, and thus, to the respective batch is selected, wherein a piston is provided which is sealed by the at least one first component, the diameter of the piston is an additional significant value, in addition to the decisively significant value, in selection of a suitable one of said groups wherein the at least one first component of a batch is combined with the at least one second component of one of the groups matching this batch and a support ring axially securing the at least one first component within the at least one second component in a deformed state so as to achieve an optimum seal between the at least one first component and the at least one second component and between the at least one first component and the piston in order to improve the metering accuracy.