Abstract: Aspirating detector device functionality licensing is described herein. One system includes an aspirating detector device configured to display a machine-readable code via an interface responsive to an input and a mobile device configured to scan the code, establish a connection with a remove server responsive thereto, and receive a license key corresponding to an aspirating detector device functionality from the remote server via the connection and wherein the aspirating detector device is configured to enable the functionality responsive to an entry of the code via the interface.

Abstract: A method for hydroforming a tubular blank comprising the steps of at least partially closing the die portions of a die about a tubular blank, introducing a hydraulic fluid into the tubular blank at a first pressure, substantially closing the die portions about the tubular blank, partially opening the die while at least initially maintaining the pressure of the hydraulic fluid, and substantially closing the die portions at least a second time.

Abstract: A method for hydroforming a tubular blank comprising the steps of at least partially closing the die portions of a die about a tubular blank, introducing a hydraulic fluid into the tubular blank at a first pressure, substantially closing the die portions about the tubular blank, partially opening the die while at least initially maintaining the pressure of the hydraulic fluid, and substantially closing the die portions at least a second time.

Abstract: A bumper for a vehicle comprises a hollow tubular beam, and has two side rail mounting portions and a front impact portion disposed between and formed continuously with the side rail mounting portions. The front impact portion includes an initial impact region and two additional deforming regions, with the initial impact region being disposed between the additional deforming regions. The initial impact region has top and bottom surfaces that are generally flat and the additional deforming regions each have top and bottom surfaces that are generally convex.

Abstract: The present invention relates to apparatus used in power control, such as apparatus for controlling the power level in an AC electrical circuit. Such an apparatus is referred to as an AC power converter. In one form, the present invention particularly relates to a power converter suitable for use in lighting dimmer control although other applications of the present invention are not to be excluded from the scope of the present application. A number of aspects of the power converter are disclosed.

Abstract: A power converter is disclosed. In one embodiment, the power converter includes an input for receiving a supply power; a switching device for controlling of power delivered to an output load; a controller for controlling the operation of the switching device; a first and second sensing circuit for providing first and second signals indicative of voltage and current inputs, respectively, to the converter; and a detector to detect a difference in polarity between the first and second signals; wherein the switching device is operable to switch between a first and second state, the first state being ‘on’ and the second state being ‘off’, and wherein the controller causing the switching device to be in the first state responsive to a detected difference in polarity between the signals to thereby dissipate a residual energy in the power converter.

Abstract: An apparatus is provided for filling a tube with fluid and for pressurizing the tube, in order to expand and form it within a die for example. The apparatus provides a high flow-low pressure fluid circuit for quickly filling and draining the tube, together with a separate high pressure-low flow fluid circuit for pressurizing and depressurizing the tube. The high pressure circuit of the apparatus includes a shaft having a longitudinal bore, communicating with a high pressure fluid source and controls; tube sealing device adjacent the forward end of the shaft for sealing the tube when the shaft is engaged with the tube and high pressure fluid flows into the tube; and a shaft reciprocating mechanism for advancing and retracting the shaft.