Abstract: The invention provides a shaker with a set of primary eccentric weights and secondary eccentric weights. The invention rotates the primary and secondary eccentric weights at the same speed, but may on the fly change the rotational phase between the primary and secondary eccentric weights, causing an on the fly change of amplitude of the inventive shaker.

Abstract: A hybrid internal/external manifolded fuel cell stack comprising a plurality of fuel cell units, each of which comprises an anode and a cathode and an electrolyte in contact on one side with an electrolyte facing face of the anode and in contact on the opposite side with an electrolyte facing face of the cathode. A separator plate separates each of the fuel cell units between an anode and cathode forming an anode chamber between the anode facing face of the separator plate and the anode and forming a cathode chamber between the opposite cathode facing face of the separator plate and the cathode of an adjacent fuel cell unit. The anode chamber is in gas communication with a fuel gas supply and outlet provided through internal manifolds whereas the cathode chamber is in gas communication with an oxidant gas supply and outlet provided through external manifolds.

Abstract: A switchgear cabinet with a frame made up of frame members and corner joints. The open sides of the frame are or may be closed by side walls, a rear wall, a bottom plate, a cover plate and at least one door. A special design of the frame members in the area of their outer edges and of the corner joints makes it simple to attach a door.

Abstract: A connecting terminal for a busbar and a connecting cable having a hook strap which can be pushed on the busbar. A clamping strap can be adjusted by an attachment screw which clamps the connecting cable to the busbar. A holding strap provisionally holds the hook strap pushed on the busbar. The cost of parts and assembly can be reduced without interference with the function because the holding strap is pushed from the direction of an outside on a transverse leg of the hook strap and extends with lateral legs that act as holding springs, into receivers of the lateral legs of the hook strap. The holding strap has a through-bore for the attachment screw. A transverse leg of the holding strap extends on both sides past the hook strap and forms receivers for adjustable fixing of the lateral legs of the clamping strap which is inserted between the lateral legs of the hook strap.

Abstract: Apparatus for inflating an inflatable device, methods for inflating an inflatable safety device and a method of manufacturing an apparatus for inflating an inflatable device are provided having a fuel containment assembly to contain a fuel in the form of a fluid. The fuel, upon proper initiation, is burned to produce gas used in the inflation of the inflatable device.

Abstract: A switchgear cabinet with a door and with a cover secured to its top side. In order to make it easier to mount the cover on the switchgear cabinet, the cover has a bottom part connected to the top side of the switchgear cabinet and a top part that covers the bottom part. The top part is joined at a rear side to the bottom part by plug or hinge joints and has at its front side holding flaps that are hooked and held by a bent border of the switchgear cabinet door when the cover and door are in their closed position.

Abstract: A pressure valve having a fluid inlet, a first chamber, a throughbore, a second chamber, a fluid outlet and a valve stem. The valve stem is mounted within a valve body and has several different diameters. A pressure condition within one or more of the chambers acts upon the valve stem to urge the stem into either an open position or a closed position, depending upon the design of the valve. The valve is particularly suitable for bypass valves, pressure regulating valves, over-pressure protection valves, lost-pressure protection valves, and other pressure-sensitive valve applications.

Abstract: A device for securing cables and conduits in switchgear cubicles with a securing bracket which is releasably secured to a support, a plate or a rail in the cubicle, and, to receive the cables and conduits has a bracket section projecting from a securing plate which has an inwardly angled end section which is engaged by a cover section that also projects from the securing plate, leaving an insertion aperture. The device can easily be built into switchgear cubicles using simple parts because a catch bracket is used to engage with the securing plate of the securing bracket and because securing side arms of the catch bracket can engage in suitably spaced and sized engagement slots in the support, the plate or the rail.

Abstract: A nozzle cone and an oscillating fluid-jet nozzle system capable of producing relatively high-velocity, high-frequency oscillating fluid jets useful in waterjetting and other industrial spray applications. The oscillating fluid jetting apparatus includes a conduit and a follower which is mounted with respect to the conduit. A cam mechanically drives the follower so that the cam moves with respect to the follower. A portion of the conduit is secured with respect to a housing. An inlet block is secured with respect to the housing. An inlet end portion of the conduit is secured with respect to the inlet block. The inlet block has a fluid inlet opening which is in communication with the conduit.

Abstract: A frame leg for a rack of a switchgear cabinet having two partial profile strips produced from material strips in a stamping and bending process, wherein the partial profile sections overlap each other with partial sections in connecting areas and are fixedly connected with respect to each other. The stability, the torsional stability and sealing of a frame leg of this type can be improved with negligible outlay. Prior to or during the stamping and bending process of the two partial profile sections, the partial sections included in the connecting areas are provided with a curable adhesive layer at least in one of the partial sections, and that the cured adhesive layers connect the partial sections of the two partial connecting sections included in the connecting areas in a fixed manner.

Abstract: A pressure relief device that is normally closed and that moves into an open condition under certain design parameters which require fluid to flow from a relatively high-pressure chamber within a vessel to a relatively low-pressure atmosphere surrounding the pressure relief device. A plug housing has a throughbore which forms communication between the chamber within the vessel and the outside atmosphere. A plug is positioned within the throughbore. A fusible alloy at least partially fills a void or a passageway which is preferably formed between the plug and the plug housing. In an upset condition, such as an external fire, the temperature of the fusible alloy rises and thereby softens or melts the fusible alloy. As the fusible alloy softens, the bonding and shear strengths of the fusible alloy are reduced. The relatively high-pressure fluid acting upon the plug preferably forces or blows at least a portion of the plug out of the throughbore.

Abstract: An absorption cooling system generator with an internal fire tube or combustion chamber is disclosed. The fire tube includes at least one radially projecting heat transfer member on its interior surface that interacts with hot combustion gases. A minimum quantity of refrigerant solution is maintained in the generator by a leveling chamber. The leveling chamber is a refrigerant solution reservoir connected to the generator to maintain substantial equilibrium of the fluid levels within the generator and reservoir. The leveling chamber includes a standpipe. When the refrigerant solution level is above the standpipe, solution may flow out of the leveling chamber and the generator to an absorber. If the solution level falls below the standpipe, set at a predetermined level, solution will not flow out of the generator. Thus, the generator will maintain a minimum, predetermined solution level. In addition, a baffle coil tube and a helical baffle provide an improved solution flow in the generator.

Abstract: A pressure relief device that is thermally triggered by a shaped memory alloy element. The pressure relief device has a valve body with a passageway that is exposed on one end to a high pressure fluid and on another end to a low pressure fluid. A closure element is moveably mounted with respect to the valve body and operates between an open position and a closed position. In the closed position, the closure element preferably prevents communication between the high pressure fluid and the low pressure fluid. In the open position, the high pressure fluid is in communication with the low pressure fluid. The shaped memory alloy element either directly or indirectly interferes with movement of the closure element. The shaped memory alloy element preferably interferes with the closure element to retain the closure element in the closed position. Upon thermal activation, the shaped memory alloy element deforms and allows the closure element to move from the closed position toward the open position.

Abstract: A wrap tool having first and second coil regions and flange regions for inducing oscillating magnetic fields to fuse a plastic coupling having heating elements to a substrate. The first and second coil regions are wrapped around a selected plastic coupling and substrate to induce fusion currents causing melting and fusion of plastic pipes inserted into a magnetically energizable pipe coupling. The flange regions of the wrap tool are positioned adjacent each other overlappingly or inner surface to inner surface, permitting opposite current coil portions to cancel the other's magnetic fields and reduce coil inductance.

Abstract: A refrigerant/absorbent composition is disclosed which comprises an aqueous solution of at least one absorbent salt, present in an amount sufficient to provide utility of said composition as an absorbent, and at least one germanium compound, present in an amount sufficient to inhibit corrosion. Also, a method of inhibiting corrosion by adding a germanium compound to a refrigerant/absorbent composition is disclosed. Further, an absorption heat transferring machine having a working fluid which comprises an absorber salt, a germanium compound and water is disclosed.

Abstract: This invention is a new device that can be used to plug perforations in materials. This plug comprises a cylinder plug with a tapered bore partially extending through the plug from one end. A cylinder pin that is tapered substantially the same as the plug will fit in the plug after installation is complete. A shear flange surrounds the pin so that when the pin is installed in the plug, the shear flange is against a plug flange. The pin is adhered to the plug by means such as a thin layer of epoxy or glue which allows the pin and plug to be handled as a single component. The pin is designed so that while in this position, there is no significant radial expansion of the plug. The pin has a pattern of holes or grooves that extend the entire length of the pin in order to allow for the expansion of any trapped fluids in the bore of the plug. The pin can have a groove along the outer diameter to allow for easier handling of the pin.

Abstract: A method for producing and purifying triacetin. The method includes an initial separation of triacetin from a crude composition of triacetin and impurities. The separated triacetin is then contacted with an aqueous solution containing an oxidant, and results in an odorless and colorless purified triacetin.

Abstract: A frame member for a switchgear cabinet frame, designed as an inwardly open hollow section having two perpendicular sides that form outer sides of the frame. An easily constructed frame member combines features that provide a simple solution to meeting many requirements of a switchgear cabinet frame.

Abstract: The absorption step of a continuous absorption cycle apparatus (refrigerator or heat pump) is externally cooled by an air-cooled thermosyphon having hot end 107 (FIG. 1), air-cooled end 115, and reservoir 123. The absorption step is further recuperatively cooled by internal fluids, in absorber heat exchanger 108 and/or GAX 109. Thus the absorber is highly compact and the cycle is highly efficient. A hotter hermetic thermosyphon can advantageously supply additional cooling.