Abstract: An update manager for a tightening parameter server may include processing circuitry. The tightening parameter server may be operably coupled to one or more tool controllers that are each operably coupled to respective power tools. The processing circuitry may be configured to receive a subscription request from a tool controller where the subscription request identifies an application to which the tool controller is to be subscribed to receive updates to the application automatically, record an identity of the tool controller in association with the application to build a database of applications and corresponding tool controllers subscribed to each of the applications, determine that a particular application has been updated, and, in response to determining that the particular application has been updated, provide an update to each tool controller subscribed to the particular application.

Abstract: An update manager for a tightening parameter server may include processing circuitry. The tightening parameter server may be operably coupled to one or more tool controllers that are each operably coupled to respective power tools. The processing circuitry may be configured to receive a subscription request from a tool controller where the subscription request identifies an application to which the tool controller is to be subscribed to receive updates to the application automatically, record an identity of the tool controller in association with the application to build a database of applications and corresponding tool controllers subscribed to each of the applications, determine that a particular application has been updated, and, in response to determining that the particular application has been updated, provide an update to each tool controller subscribed to the particular application.

Abstract: The invention relates to a gas exchange valve for an internal combustion engine, in each case comprising in particular a hollow valve stem (3) and valve head, in which the valve head comprises a valve bottom and a hollow valve keeper, connected to the external margin of the valve bottom, wherein the valve keeper tapers off as the distance from the bottom increases; the valve stem passes through the hollow valve keeper and is firmly connected to the valve bottom on the one hand, and to the tapering-off end of the valve keeper on the other hand; and the end of the valve stem which is connected to the valve bottom protrudes beyond the connection plane between the valve keeper and the valve bottom, is to be improved in relation to its stability and fatigue strength.