Abstract: A functional element is provided which comprises a functional layer with at least one filter portion, a covering part on each side of the functional layer, at least one fluid passage in the functional element which passes through a passage area of the at least one filter portion, and a sealing segment which surrounds the passage area in a circumferentially closed manner with sealing material of the sealing segment permeating the filter portion to provide a seal in the filter portion and between the covering parts and the filter portion.

Abstract: In order to provide a rupture device which can be produced as simply as possible and which enables a controlled opening of a container in the event of an overpressure, it is proposed that the rupture device comprise a wall component which has at least one rupture web, wherein the at least one rupture web has a thickness varying in the longitudinal direction, and/or wherein the at least one rupture web is formed by at least one first depression, which is arranged on a first side of the wall component, and at least one second depression, which is arranged on a second side, facing away from the first side, of the wall component.

Abstract: The aim of the invention is to provide an electrochemical cell which can be produced as simply as possible and with which fluid can flow out of the interior in the event of an overpressure in the interior of the electrochemical cell. This is achieved by an electrochemical cell that comprises a housing, which surrounds the interior of the electrochemical cell, and a rupture device, which is arranged on a wall of the housing and is in particular formed integrally with the wall, wherein the rupture device comprises at least one rupture web, wherein the at least one rupture web has a thickness varying in the longitudinal direction, and/or wherein the at least one rupture web is formed by at least one first depression, which is arranged on an inner side, facing the interior, of the wall, and by at least one second depression, which is arranged on an outer side, facing away from the interior, of the wall.

Abstract: A retainer device for assembly with an associated shaft by an associated expansion device is disclosed which includes a ring body having a first arcuate leg, a second arcuate leg, a first lug is disposed at one end of the first arcuate leg and a second lug is disposed at one end of the second arcuate leg. The enhanced lugs are adapted to receive the associated expansion device when oriented both axially and radially with respect to the associated shaft.