Abstract: A foam-in-bag packaging system and method of forming the same is provided in which a bag of flexible plastic film material includes superposed panels joined around their peripheral edges to define an enclosed space which is vented to the outside of the bag by venting perforations in the panels, a packet or pouch of barrier material capable of maintaining foam precursor components in a stable, unreacted state for an extended time period is positioned in the enclosed space in the bag adjacent one end thereof and secured from movement therefrom, the packet has first and second compartments therein separated by a first frangible seal extending across the packet and first and second foam precursor components contained respectively in the first and second compartments, the packet has a second frangible seal between one of the compartments and the enclosed space in the bag, the bag being folded along spaced transverse fold lines into a relatively compact form and being folded along a fold line coincident with the fi

Abstract: A cooling arrangement for a high speed open rotor reluctance motor/generator apparatus of the type finding combination use in aircraft applications for engine starting and electrical energy generation in both normal and auxiliary power unit operating conditions. The cooling arrangement identifies fluid flow alternatives which include inlet region redirection of coolant fluid to improve its induction into rotor interpolar space, rotor movement-induced centrifugal pressurizing of coolant using simple and more complex structural elements, machine heating of the coolant fluid, kinetic energy extraction from heated moving coolant fluid and combinations of these arrangements in particular machine configurations. Use of the invention under extremes of machine energy levels and self heating in military and commercial aircraft environments are contemplated.

Abstract: A method for extending the gas lifetime of an excimer laser by removing CF.sub.4 impurity, which comprises:a) reacting CF.sub.4, an undesirable impurity which forms and is contained in the lasing gases, with an amount of an oxidizing gas additive effective to produce one or more compounds which are condensible with refrigeration means, without reducing laser output below a predetermined acceptable level; andb) condensing said one or more compounds produced in step a) with refrigeration means, substantially without condensing said one or more rare gases therewith, thereby removing said CF.sub.4 impurity from said excimer laser and extending the gas lifetime of the laser.

Abstract: The invention relates to a method for improving the separation of water in a tall oil preparation process which comprises: a neutralization step, in which a mixture of tall oil soap and water is neutralized with carbon dioxide; a water separation step, in which the aqueous phase containing bicarbonate is separated from the tall oil soap; and a cooking step, in which the tall oil soap obtained from the previous step is cooked with sulfuric acid in order to form tall oil, the improvement comprising the fact that, after the neutralization with carbon dioxide but before the water separation step, the pH is adjusted with an acidically reacting substance, such as bisulfite. The invention also relates to a method for the preparation of tall oil, the method comprising the steps stated above.

Abstract: High fluence charged-particle beams are generated in a vacuum or near vacuum environment. To use these beams in an atmospheric pressure environment, they must pass through some form of transmission window between the two environments. To date, thin single metal foils have been used for these transmission windows. The total practical fluence of such transmitted beams is limited by the ability of the window to dissipate the excess heat deposited in it by the transiting beam. Existing windows have relied only on simple radial heat conduction through the thin foil, radiative cooling from the foil faces, and/or flowing cooling fluids on the high-pressure face of the foil. The present invention, however, proposes to enclose one or more channels within a double foil window and to flow a cooling fluid through such channel(s). The window cooling rate is thus significantly improved over air convection because of fully-developed turbulent flow and a higher cooling mass transport through such channels(s).

Abstract: A process and apparatus for drying and removing carbon dioxide from a hydrogen and carbon monoxide containing synthesis gas by using adsorption vessels containing a first layer of 13 X-zeolite and a second layer of 3 A-zeolite in which the 3 A-zeolite precludes the formation of water of reaction when dry and carbon dioxide-free synthesis gas is used to regenerate the adsorption vessel countercurrent to feed flow of the synthesis gas.

Abstract: A brake pipe leakage test for a train is performed using an improved brake pipe drop pressure method prior to departure of the train consist from a railyard terminal. The train consist includes a brake, a brake pipe, and a brake pipe cutoff valve.

Abstract: An electro-optic, noncontact, interior cross-sectional profiler (a "probe") and method of using the probe to determine the physical characteristics, such as interior dimensions, of an interior surface of a tubular structure, such as pipe, tubing, gun barrels and the like. The probe utilizes a disc of unfocused light to illuminate a cross-section of the interior surface and images the illuminated cross-section from the interior surface to a photodetector array, where the image can be evaluated. The probe is useful for off-line and on-line (or "in-line") processes, such as an extrusion process.

Abstract: An electrical circuit for controlling the operation of a fan cooled aftercooler receiving pressurized air from a compressor located in a locomotive. The circuit includes a motor for driving the fan of the aftercooler, an electrical relay comprising a coil and contacts operated by the coil, and a temperature sensitive switch connected in electrical series with the coil. The contacts of the relay are connected in electrical series with the motor. The temperature sensitive switch is effective to open the circuit of the coil and thereby open the contacts to stop operation of the fan when ambient temperature falls to or below freezing.

Abstract: Betaine is produced by the oxidation of a choline salt in the presence of a supported noble metal catalyst at temperatures from about 20.degree. C. to 100.degree. C. and pressures from atmospheric to about 100 psi. This process is advantageous over prior processes for the production of betaine in that no amine halocarboxylate contaminants are produced by this reaction.

Abstract: A variable area inlet structure for a vehicle utilizing ram air for coolant is described which comprises a variable area inlet device in the ram air inlet in the form of a butterfly valve, damper, shutter, or similar structure, a temperature sensor in thermal contact with a component within the vehicle to be cooled by ram air flow, a controller and actuator, responsive to the temperature sensor and operatively connected to the variable area device, for controlling the inlet area in response to the component temperature.

Abstract: A selective vertical locking mechanism is provided for use with a pair of telescoping tubes. A locking mechanism releasably locks the inner tube relative to the outer tube for adjustment of table height. The locking mechanism includes a housing disposed at the lower end of the inner tube. A locking element with the housing is biased against an inclined ramp fixed within the housing and, though an opening in the housing, against the inner wall of the outer tube, thereby preventing the inner tube from moving downwardly within the outer tube. A push rod and arm, actuated by a handle near the platform, pushes the locking element away from the inner wall or the ramp which allows the inner tube to move downwardly.

Abstract: An improved housing for draining condensed water from the interior of a heating and air conditioning unit installed in a motor vehicle. The contoured bottom wall of the housing includes a raised portion surrounded by a series of sloped channels which lead to a collection basin having a drain. A fan or blower forces air through the housing inlet and past the heating and cooling elements. A portion of one of the sidewalls adjacent the air inlet interrupts the entering air to create a low pressure area. Condensed moisture is drawn along the sloped channels towards a collection basin located in the low pressure area. A drain is provided in the collection basin to remove the moisture from the housing.

Abstract: Methods and systems of delivering ultra-high purity gas to a point of use are claimed and described. The methods include providing a source of ultra-high purity liquid (the source preferably at a pressure and temperature sufficient to maintain the liquid in substantially the liquid phase); transporting (preferably via pressure in the source alone) the ultra-high purity liquid from the source to one or more means to effect a phase change of the ultra-high purity liquid to an ultra-high purity gas; effecting a phase change (preferably at or near equilibrium vaporization conditions) of the ultra-high purity liquid to form an ultra-high purity gas in the one or more means to effect the phase change; and routing the ultra-high purity gas from the means to effect the phase change to a point of use (preferably with no intermediate, potentially impurity-generating media between the means to effect the phase change and the point of use other than ultra-clean conduit).

Abstract: A packaging structure is disclosed for holding an article securely between a flexible film and a pair of foldable flaps. The structure includes a frame having a main portion, and a pair of folding side legs and a pair of folding end legs supporting the main portion. The main portion defines a window, and a flexible web is connected to the folding side legs so that it extends across and below the window. A pair of flaps are foldably connected to the side legs. An article to be packaged is placed on the web and the flaps folded thereover to hold the article securely in place. The entire packaging structure may be placed in an outer box which holds the flaps in a closed position against the packaged article.

Abstract: Modular heat exchange baskets for rotary regenerative air preheaters have radially extending tie bars which are positioned at each of the top and bottom side edges of the basket and which tie together the inboard and outboard end frames. These tie bars are located inside of the side edges of the heat exchange plates such that the plates extend out beyond the tie bars. This reduces the bypass gap between baskets.

Abstract: A powered operator for sliding plug doors mounted on a movable carriage mounted overhead of an opening in the side wall of a transit vehicle, said doors including a single electric prime mover driving dual helical drives, each operating a door hanger attached to a single door panel over and away from said opening and for moving said carriage out of said side wall pocket. Door hangers used provide controlled deflection of door panels when in a fully open position. Drive linkages lock door panels when in a plugged position. The operator also provides guidance for the lower edge of said door panels during plugging and unplugging operations. Control elements and a central controller provides sequential door panel movement into and out of a pocket in the transit car side wall.