Abstract: A device for filtering the smoke commonly associated with cigarettes and cigars includes an ashtray which supports a shroud for confining the smoke. The shroud in turn supports a motorized fan which creates a flow of air to carry the smoke through a filter. A motor for driving the fan is removed from the flow of air to prevent contamination of the motor by the smoke fumes. An elongated filter and a cylindrical filter are both provided with cartridge configurations to facilitate the removal and replacement of the filters. An absorbent material is impregnated with a perfume to enhance the fragrance of the flow of air through the device.

Abstract: A first feed comprising particulate material predominantly in the size range 30 mesh to 1/2 in. is fed into an upper portion of an upwardly extending casing, and is a major portion of the particulate material. A second feed, which is a minor portion of the particulate material, comprises at least 50% by weight of fines predominantly in the range 140 mesh to 30 mesh, the remainder being superfines, is also fed into the casing. A gas is fed upwardly along at least a portion of the casing so that the coarse particles, a major portion of the fines and a minor portion of the superfines freely gravitate down the casing in counterflow to the flow of a major portion of the gas and form a packed particulate bed in a container beneath the casing.

Abstract: A continuously regenerating granular filter operable at high temperature and pressure includes a filter chamber with a gas inlet and gas outlet. A filter bed in the chamber located between the gas inlet and gas outlet is adapted to hold a filter medium and permit gas to flow therethrough. The filter bed includes inlet means and outlet means for enabling the filter medium to move through the filter bed. The filter also includes filter medium cleaning means for cleaning the filter medium. Filter medium transport means operates to transport the filter means from the outlet means, through the cleaning means and to the inlet means.

Abstract: A solid fuel fired gas turbine system for generating electric power which includes a generator, a turbine for operating the generator, a combustion chamber for burning solid fuel to form heated gas under pressure for operating the turbine, and a continuously regenerating granular filter for removing particulate matter from the pressurized, heated gas. The granular filter is operable at high temperature and pressure and is particularly well suited for continuously cleaning the pressurized, hot gas used to operate the gas turbine without significant loss of gas pressure or temperature.

Abstract: Finely divided solids are removed from a feed gas by passing the gas through an elongated annular mass of solid particulate contact material held between two generally concentric cylindrical walls. The outer wall is louvered having vanes outwardly inclined to the vertical at 15.degree. to 80.degree. and the louver openings are of such width that most of the particles of contact material are capable of passing through them. The inner wall is perforated to permit passage of gas through the wall and may be louvered similarly to the outer wall but having the louver vanes inwardly inclined. The finely divided solids are entrained or trapped in the mass of contact material which is moved downwardly through and out of the annular space between the two concentric cylindrical walls. The contact material is then treated to separate entrained finely divided solids and returned to the upper end of the annular space.

Abstract: A continuous moving bed filter arrangement including a generally vertical vessel defining a gas cleaning chamber therein, having granular filter media inlet opening means located in the upper portion thereof, granular filter media outlet opening means located in the lower portion thereof, at least one first gas conduit means communicating with the upper end thereof, at least one plenum means surrounding a portion of the circumference of a segment of the vessel adjacent the lower portion of the vessel; at least one second gas flow conduit means to conduct gas between the plenum means and the gas cleaning chamber defined by the vessel; at least one third gas conduit means communicating with the plenum means; filter media inlet tube means extending downwardly from the media inlet opening a selected distance into the gas cleaning chamber defined by the vessel for selective admission of granular filter media to the chamber defined within the vessel whereby media flows downwardly through the vessel from the filter

Abstract: A fluid filter construction comprises a mass of filtering material, such as activated charcoal, in which fluid flow passage forming members are embedded. The filtering material itself serves as the means for sealing the filter against leakage of unfiltered fluid into or out of the filter and against bypassing from the inlet to the outlet side of the filter.

Abstract: There is provided a puffback technique for cleaning a panel bed contactor suitable for chemical or physical treatment of gas and granular material. Free surfaces for entry of gas are supported cooperatively by louvers. A puffback technique is provided for cleaning the gas entry surfaces to rid them of granular material "spent" by the treatment, including accumulated dust if the treatment includes filtration to remove dust from a gas. The puffback consists of a reverse transient flow across the panel bed of an intensity moderated so that the reverse pressure differential exceeds a first critical minimum for a time interval between about 5 and 150 milliseconds (preferably less than 50 milliseconds if the treatment includes filtration) and achieves a top value beyond a second critical minimum.

Abstract: There is provided an improved panel bed gas-solid contactor fitted for puffback cleaning and for use with a relatively fine granular material, such as smaller than about 20 mesh, at large gas face velocities (i.e., the horizontal velocity of gas across the panel bed), in which the fine material is prevented from blowing away from gas exit portions of the panel bed by mounting a column of closely spaced louvers next to these portions, providing a second column of substantially horizontal louvers spaced apart from the closely spaced louvers, and filling the space between the two louver columns with a coarser granular material, such as 10-14 mesh. The coarser material is also preferably denser. The contactor is well suited for use at elevated temperatures.

Abstract: There is provided an improved panel bed of granular material useful for filtering dust from a gas and especially suitable for construction in tall panels of high gas-treating capacity. Free surfaces for entry of gas are supported cooperatively by "chevron louvers" each having an upper and a lower surface, articulated at an edge joint within the panel bed. The upper surface has an outer edge that supports the outer edge of a given free surface, and the lower surface has an outer edge contiguous with the inner edge of the next subjacent free surface. Cleaning is by puffback to remove dust accumulated on the gas entry surfaces during filtration along with a portion of the granular material. A line drawn through the outer edge of the lower surface of a louver and the edge joint of the next subjacent louver forms an angle of less than about 60.degree. to the horizontal, preventing dust that has penetrated into the panel bed from being dragged downward within the bed during the puffback cleaning.

Abstract: An apparatus for the removal of particulate matter and sulfur oxides from waste gases is disclosed. The apparatus comprises a vessel for cross-current contacting of the waste gas with a moving bed of acceptor for sulfur oxides, and separate processing chambers for removal of the particulate matter from the loaded acceptor, for the removal of sulfur oxides for the loaded acceptor, and for reactivating the acceptor.

Abstract: There is provided an improved panel bed of granular material useful for chemically or physically treating a gas and a granular material in a countercurrent contact. The contacting equipment is unusually compact and affords an unusually low pressure drop in the gas. Free surfaces of the granular material for entry of gas are supported cooperatively by "louvers" each having a gently curved upper surface, the outer edge of which supports the outer edge of a given free surface. The gently curved upper surface of the louver inclines from its outer edge first downward and toward the granular material bed and then upward toward an inner edge relatively deep within the granular material bed. The inner edge of a supporting surface is either above the inner edge of the superjacent free surface of granular material or, if below, a line drawn through these edges is inclined at an angle of less than about 45.degree. to the horizontal.

Abstract: An air filter apparatus comprising an inner sleeve having a number of small apertures, an externally tapered outer sleeve having a number of small apertures, said inner sleeve being inserted in said outer sleeve and fixed in position to form a double-wall cylinder, a funnel-shaped suction port disposed at the mouth edge of the inner sleeve on the side where the larger diameter of the outer sleeve exists and active carbon packed in a space between the inner and outer sleeves.

Abstract: This invention relates to apparatus for charging and emptying filter material in a continuous filter silo for the purification or cleaning of flue gases, and in one embodiment comprises a layer of filter material is located between two substantially vertically arranged wall sections which have apertures, and wherein the layer of filter material, defined by the wall sections which are of annular cross section, is subdivided by at least 4 vertically arranged intermediate walls into segments, and wherein means are provided for the controlled feed of flue gases such that selectively two of the segments at a time are excepted from the action of flue gas, thereby permitting the renewal of the filter material, while the remaining segments being under full action of flue gas.

Abstract: System includes a closed housing having a plurality of rectangularly configured beds with perforate sidewalls longitudinally disposed in housing in laterally spaced disposition with each other. Alternate spaces at inlet end are closed and alternate spaces opposite the open ends are closed at exit end whereby contaminated gas is laterally squeezed through the beds filled with particulate adsorbent. The lower portions of the beds funnel into longitudinally extending discharge chutes enclosed within respective wells, the lower edges of the chutes rising at a constant angle above the well floor. An evacuation system coupled to the wells suctions the pile of particulate from the most remote portion of the chutes first.

Abstract: A glass making furnace having a preheater and recycling structure including a tubular housing having a lower gas receiving stack section, a top in the form of an inverted cone, a glass batch pellet containing intermediate section, having a lower portion over the cone and about the intermediate section, gas ports in the side of the cone, shield means over the ports, a discharge valve in the lower portion below the cone part, a hot gas stack extending over the upper portion of the pellet section, a fan or hot gas ejector at the top of the stack, a damper above the fan or hot gas ejector connecting with a pressure controller within the furnace for maintaining the pressure in the furnace slightly above atmospheric, an inlet valve outwardly of the upper portion of the pellet section to control the entrance of the pellets, a regenerator on each side of the melting section and port and burner means communicating with each regenerator, a reversing valve connected with the regenerators and the melting section, and a p