Abstract: An alternate polymer extrusion method and system reduces “drool” effects that detract from precise control over the content of two or more materials in an extrudate along its length. In the system, two or more extruders direct melt to two or more gear pumps. Control of the speed of the gear pumps controls the amount of each material emergent from the pumps, proceeding to a convergence in the paths from the pumps and thence to a die. Melt in each path between each pump and the convergence tends to expand and drool into the convergence as its associated pump is slowed and stopped. To prevent this, in the die, a constriction in each path just upstream of the convergence greatly reduces drool past that point by requiring a much greater pressure to force the melt past the constriction. The increased pressure required increases compression and expansion of the melt between the pump and the construction as a pump starts or increases in speed, on one hand, and stop or decreases in speed, on the other hand.

Abstract: A system and method of proxy (60) domain name registration permits a would-be domain name registrant anonymity. A registrar (24) affords customers (20) the opportunity to use the proxy registration. If the customer seeking registration of a domain name requests, the registrar obtains contact information needed for registration from a proxy entity established for this purpose. The registrar completes the registration of the domain name with the appropriate registry (22) (i.e. “.com, .net” etc.). The contact information published in WHOIS (27) is that of proxy entity. Contractually the customer is afforded control over the domain name. Emails intended for the customer are received by the proxy entity who may filter them if the customer requests. Emails sent by the customer are sent to the proxy entity who in turn send them to the indicated addressee.

Abstract: There is provided a quick connect electrical box assembly that can be attached to a construction member such as a wall stud. The electrical box includes a box frame and a box back. The box frame and box back each include reciprocal snap connectors so that the frame can be joined to the back. Channels are configured in the box back, and conductor rails are positioned in these rails. Common electrical wires, such as are founded in three-strand bundled power lines, can be stripped of their insulation and placed in the rails. The rails, formed of conductive material such as copper, then form an electrical connection within the box. Using this box an electrician can quickly and efficiently bring power to a location during rough assembly. Later, during finish electrical work, the electrician can also plug devices such as switches and plugs into the box. The switches and plugs, configured with prongs, make electrical connection with the rails and thereby receive power.

Abstract: The present invention is directed to a switch mode power converter for supplying an output power to a load, which includes a switching device having a switching input, a switching output, and a control input for enabling or disabling the switching device from conducting current from the switching input to the switching output. The converter also includes a network in which the switching device input, the switching device output, and the load are connected together to form a circuit. The converter also includes a bias winding in the circuit for producing a bias voltage representative of the output power, and a control circuit. The control circuit is for (a) determining the rate of change of the bias voltage, (b) characterizing the rate of change, and (c) controlling the control input as a result of the characterization (b).

Abstract: This invention relates to a measuring electrode arrangement (1), in particular for electroimpedance tomography, having at least one measurement object (5) for electric motor contacting of a measurement object (2). It is proposed that a storage space (7) which contains a contact medium (6) for reducing the electric contact resistance between the measuring electrode (5) and the measurement object (2) is located on the side of the measuring electrode (5) facing away from the measurement object (2), said storage space containing a contact medium (6) for reducing the electric contact resistance between the measuring electrode (5) being at least partially permeable for the contact medium (6).

Abstract: A generator support plenum for a engine-generator set for installation on a pickup truck in an RV or on a boat, for example, sits in or under or forms a part of an enclosure for the engine-generator set and defines cool air flow paths into the set for cooling the engine and generator and aspirating the engine. The plenum also defines a warm air outlet duct for escape of the cooling air. In the outlet duct a diffuser couples to the exhaust of the engine to mix hot exhaust with the much cooler escaping cooling air that has passed over the engine and generator. The diffuser eliminates the effect of the extreme hot exhaust gas and muffles the engine sound. Insulation coating the internal surfaces of the plenum further suppresses engine noise.

Abstract: A magnetic device to be surface mounted on a substantially planar thermally conductive surface comprises a circuit board containing a winding pattern having at least one winding and a magnetic core that is at least partially encompassing the winding pattern. On a bottom side of the circuit board a region corresponding to a substantial part of the winding pattern is covered by a thermally conductive material for thermally contacting the thermally conductive surface. A transformer arrangement comprises such a magnetic device as well as a thermally clad circuit board having a surface area covered by a thermally conductive material, corresponding to at least substantially the covered region on the bottom side of the circuit board. For assembly, the covered region on the bottom side of the circuit board is soldered to the covered region on the surface of the thermally clad circuit board.

Abstract: A compact combined toaster and cooker includes in a single housing a toaster and a cooker that has first and second food-heating locations. The toaster is in most ways conventional, having at least one slot and at least one electrical heating element. The cooker has a separate electrical heating element. The first food-heating location of the cooker is recessed within the housing above the cooker's heating element. This first food-heating location opens upwardly from the housing to receive a cooking pan. The first food-heating location also opens through an opening in a face of the housing. The cooking pan has a handle that projects through this opening. The second food-heating location is within the housing and below the heating element. The second food-heating location receives a warming receptacle through a slot in the wall of the housing. The cooking pan handle is pivotally attached to the pan and locks in either an outwardly extended position or in a downwardly pivoted, contracted storage position.

Abstract: DC-DC converters such as flyback converters achieve self-regulation by communication information between primary and secondary circuits through the power transformer. Operating in accordance with a generalized concept or algorithm, the converter can be bi-directional and self-regulating. Control of the turn OFF times of semiconductor switches in first and second circuits coupled to first and second windings of the power transformer determines whether power flow is in one direction through the converter or the other direction. Turn ON timing of each semiconductor switch is when there is a reverse current through the switch and voltage across the switch is at or near zero. Turn OFF of a switch can be controlled from one or more operating parameters of the converter such as output voltage, in which case the converter's self-regulation is affected through duty cycle variation with variations in output voltage.

Abstract: A coil form for forming an inductive element (10) includes a coil body (2) and at least one, for example three separating plates (3). The coil body (2) has an opening (4.1) and includes two portions, a coil portion (6) and a flange portion (7). To put the inductive element (10) together, the separating plates (3) are pushed over the coil portion (6) of the coil body (2). For positioning of the separating plates (3), recesses (8) are provided on the surface of the coil portion (6). The separating plates (3) divide the surface of the coil portion (2) into a plurality of coil areas where the coil or the coils of the inductive component (10) can be provided, for example by winding an isolated wire around the coil portion (6) in a coil area. Afterwards, the core of the inductive component is installed by fitting the two E-shaped core parts (11.1, 11.2) together such that the middle leg (13) of each core part (11.1, 11.2) is inserted into the opening (4.1) of the core body (2).

Abstract: The casing of a power supply includes a bottom and a cover. Both of them have a U-like shape. Since the cover is slightly wider than the bottom two air ducts are provided between the side plates of the bottom and the corresponding side plates of the cover respectively. A printed circuit board is mounted within the casing, particularly on the bottom. Different mechanical, electric and/or electronic components are mounted on the printed circuit board. Furthermore, heat generating components are mounted on the printed circuit board such that they are in right contact with the side plates of the bottom. The waste heat generated by the components is transferred to the side plates of the bottom and further on to the cover and its side plates. From there the heat is dissipated into the air and particularly into the air ducts from where it is dissipated by the air flow from two fans that are arranged at the inlet of the air ducts.

Abstract: An improved snubber is electrically switched to close a current path to a capacitor (C) in a series connected RC circuit at the onset of an abrupt voltage change otherwise producing ringing in a resonant circuit to which the snubber circuit is connected. The current path to the capacitor (C) is then interrupted before the capacitor (C) discharges and thereafter at each such voltage change in the resonant circuit the capacitor (C) is no longer charged from its totally discharged state but nevertheless damps the ringing by virtue of current flow to the nearly completely charged capacitor (C). By preventing complete charging and discharging of the capacitor (C) in the RC circuit every cycle, power dissipation in the resistance of the snubber circuit is greatly reduced.

Abstract: The invention relates to a gravity measurement apparatus comprising a torsion balance bearing a test mass. The torsion balance has a predetermined center of mass and is rotatable around a predetermined rotation axis, wherein the torsion balance is asymmetric in such a way that the center of mass of the torsion balance is offset to the rotation axis of the torsion balance.

Abstract: The invention relates to a rubber elastic assembly frame for affixing an axial ventilator, which is provided with a mounting flange, to the wall of a housing of a device which is to be cooled. The assembly frame has formed locking elements for receiving the mounting flange and retaining elements for holding the assembly frame against the wall of the housing. The retaining elements are embodied in the form of mushroom-shaped projections (10).