Abstract: A filter for filtering blood during surgery or dialysis by passing it through a fibrous filter mat for removal of blood cell aggregates and extraneous particulate debris, and for separation of entrained air. The presenting surface of the filter mat comprises a plurality of fluffed regions, each of graded fiber density, for selective filtration of blood aggregates and debris.

Abstract: Apparatus for expelling gas bubbles from liquid adhesive which is conveyed through a conduit connecting an adhesive-containing vessel with a nozzle which applies adhesive to the running web of wrapping material in a tobacco or filter material processing machine. The conduit has a first section which contains a large-capacity pump and discharges adhesive into the enlarged portion of an annular channel defined by the cylinder and core of a gas evacuating device. The enlarged portion is followed by a second portion of smaller cross-sectional area which communicates with a radially inwardly extending gap of the core to admit some adhesive and the gases into a passage serving to return the gases and escaping adhesive to the vessel. A second section of the conduit contains a smaller-capacity pump and serves to feed degasified adhesive from the second portion of the channel to the nozzle.

Abstract: A gas-liquid separator vessel has mounted within its internal volume the adsorber tower of a dehydrator for the separated gas. The connections between the internal volumes of the two vessels are kept to minimum length, and heat exchange between the separating fluids and reconcentrated dessicant of the dehydrator is facilitated.

Abstract: Foam is generated in a vessel as a result of the mixing of gaseous and liquid phases in the vessel. A foam breaker has a housing which straddles and is open to an upper opening of the vessel. A vertical shaft is mounted in the housing for rotation by an upper and a lower bearing; the shaft carries conical foam breaking members and the housing has an outlet through which the gaseous component of the broken-up foam can escape.

Abstract: Volatile compounds are desorbed from an aqueous liquid containing ammonia, by means of a stripping column. The aqueous liquid is supplied to the upper part of the column and a gaseous mixture including free oxygen is blown into the lower part of the column. Sodium hydroxide and/or calcium hydroxide is supplied to an intermediate part of the column at a plurality of levels. A gaseous mixture including ammonia is withdrawn from the top of the column. The pH and the temperature of the aqueous liquid are measured at a plurality of levels in the column. The flow rate of the aqueous liquid and the flow rate and temperature of the gaseous mixture blown in and of the hydroxide are controlled so that the pH of the aqueous liquid, at least in a predetermined zone of the column, is at least 11.

Abstract: A filter-drier assembly adapted for bidirectional flow in heat pump systems. The filter-drier assembly includes a pair of bypass lines in the liquid line, each bypass line circumventing one of the expansion devices located in the liquid line. An expansion device is located ahead of the outdoor coil for use in one mode of operation and a second expansion device is located ahead of the indoor coil for use in the other mode of operation. A filter-drier unit is disposed in each bypass line, each filter-drier unit including a check valve enabling flow through the associated bypass line and filter-drier unit in one direction and precluding flow in the opposite direction. The check valve of each filter-drier unit precludes flow in the bypass line when its associated expansion device is operable in one mode of operation. The filter-drier unit includes a shell provided with an inlet and an outlet, and filtering and drying elements in the shell between the inlet and outlet.

Abstract: Disposable filter for fluids in the form of a ring of pleated filter material provided with continuous lines of corrugations at right angles to the pleats; some of the lines have corrugations of greater height than the other lines.

Abstract: A unitary device for purifying water and other fluids embodying an annular filter surrounding an elongate tube which in turn surrounds and cooperates with an elongate ultraviolet lamp to form a flow channel for fluid to be irradiated. Fluid passing through the filter is conveyed through the flow channel along the length of the lamp to effect sterilization. The lamp is encased in a film of material having non-stick characteristics with respect to the fluid being treated, such as fluorinated ethylene propylene, to prevent buildup of scale and other contamination on the surface of the lamp which would otherwise reduce transmission of ultraviolet rays to the fluid. The lamp assembly is constructed as a replaceable removable unit which is adapted to be mounted in reversed endwise position to accommodate the device for different types of installations.

Abstract: A subceiling 10 for kitchens and the like includes upwardly arched condenser panels 12 whose free edges are disposed above hollow, U-shaped collecting channels 14. The interiors of the channels may be supplied with cold water to promote condensation or with hot water to melt and drain off fatty deposits.

Abstract: The present invention relates to a system for automatically recovering the entirety of the excavated materials in the order in which they are raised to the surface.The excavated materials being delivered through the central passage of a double pipe system pass into a strainer pipe 6 discharging into a perforated recovery sheath 5 which is closed at its base. A decompression sleeve 3 encloses the strainer pipe. Air and water are evacuated through the strainer slots 6 and all the excavated materials are deposited at 5 in the order in which they are brought up.The invention is applicable to any reverse circulation drilling system.

Abstract: Gas laden drilling fluid is subjected to flow through a unique enclosed degasser trough to aid in the removal of entrapped gas bubbles from the fluid. A fluidic seal means is provided at each end of the trough to prevent flow of freed gas thereby, and a gas exhaust conduit is located at or near the top of the trough to allow gas removed from the fluid to be conducted to a safe disposal area.

Abstract: A method for effectively removing gas entrained in a viscous drilling fluid involves pumping the fluid with an open-center impeller pump and thereby creating a central opening in the pumped fluid into which freed gas can move coaxially with the pumped fluid; emitting the fluid in a continuous radial spray against the inner surface of the wall of a spray vessel while simultaneously creating a vacuum in the spray vessel; communicating the created vacuum area in the spray vessel with the central opening in the pumped fluid to improve gas removal and pumping efficiency in the pump; flowing the pumped fluid into an enclosed flow trough having a fluidic barrier at each end; and conducting the removed gas from the flow trough to a safe disposal area.

Abstract: A method is disclosed for removing metallic mercury from industrial sewage waters, the improvement consisting in that the polluted liquors are treated with activated carbon having a high specific surface.

Abstract: Methacrolein is recovered from a gaseous mixture containing it by bringing the gaseous mixture into contact with acetic acid.

Abstract: The invention comprises an L-shaped tank which, in combination, has both a vertical, liquid-reservoir housing and a horizontal, filter housing through which compressed gas, which has liquid entrained therein, is conducted. The gas is guided in centrifugal travel through the vertical housing, to separate out the liquid, and then it passes through a filter, fixed within the horizontal housing about an apertured outlet pipe, also to separate any remaining liquid from the compressed gas. A plurality of baffles require the product gas to follow a circuitous or tiered path through the vertical housing, and the apertured outlet pipe is offset from the center of the horizontal housing to insure that the being-filtered gas uniformly addresses the outlet pipe.

Abstract: A means for connecting a vacuum pump to a chamber to be evacuated comprises an outer wall of low gas permeability and a gas sorptive means substantially coextensive with the inner surface of said outer wall.

Abstract: A unique degasifying system for removing entrapped gas bubbles from a viscous drilling fluid utilizes a hollow shaft pump having a hollow impeller, with a prerotation chamber and impeller shroud below the impeller; a spray vessel having a continuous sheet radial spray head and vacuum creating means therein; a vacuum conduit connecting the vacuum creating means to the hollow shaft of the pump; and an enclosed degasifying trough connected to the spray vessel and having fluidic seal means at each end, with a gas exhaust conduit connected thereto.

Abstract: The concentration of gas in a liquid is diluted to prevent effervescence and loss of dissolved gas, by introducing a diluent to a liquid emerging from a plug flow chamber within which the liquid is supersaturated with gas by recirculation of the liquid through a closed loop including the plug flow chamber and a gas transfer device.

Abstract: A skimming device for removing oil and similar products from the surface of water. The device is self-adjusting in that its skimming rate and the depth of skim are controlled by the rate that the skimmed fluid is removed from the device.

Abstract: Multiple sets of rotary impeller blades and an atomizing screen are located in the path of gas containing fluid, as drilling mud, discharged from a rotary body through a suction degassing chamber, for the purpose of more fully separating the gas from liquid constituents.