Abstract: An attaching system for a filter cartridge may include: a top cap configured to attach to a filter cartridge; a mating projection located on the top cap; at least one locking projection projecting radially away from the mating projection; and a base portion defining an annularly shaped flat surface surrounding the mating projection on a first side and configured to attach to the filter cartridge on a second side. A method of attaching a filter cartridge to a filter assembly may include: providing locking projections on a top cap of a filter cartridge; locating a spring around a mating projection of the top cap; forming annular groove between the spring and the locking projections; and configuring the top cap to a portion of the filter cartridge.

Abstract: A gas dryer includes a first opening structure forming a cooling pathway fluidly connected to the first opening; a first thermoelectric device thermally connected to the structure forming the cooling pathway and a heat exchanger. A condensate drain is located near an end of the cooling pathway and configured to drain condensate formed when a fluid is cooled along the cooling pathway. A structure forming a warming pathway is located between the condensate drain and a second opening, and a second thermoelectric device thermally connected between the structure forming cooling pathway and the structure forming the warming pathway and connected to exchange heat between the cooling pathway and the warming pathway. A method of drying a gas is provided.

Abstract: An attaching system for a filter cartridge may include: a top cap configured to attach to a filter cartridge; a mating projection located on the top cap; at least one locking projection projecting radially away from the mating projection; and a base portion defining an annularly shaped flat surface surrounding the mating projection on a first side and configured to attach to the filter cartridge on a second side. A method of attaching a filter cartridge to a filter assembly may include: providing locking projections on a top cap of a filter cartridge; locating a spring around a mating projection of the top cap; forming annular groove between the spring and the locking projections; and configuring the top cap to a portion of the filter cartridge.

Abstract: An air/refrigerant heat exchanger includes a plurality of coiled tubes. A first tube of the plurality of coiled tubes has a phase change material therein. A second tube of the plurality of coiled tubes has a flow of cooled refrigerant flowing therethrough and the first tube is in thermal contact with the second tube. A third tube of the plurality of coiled tubes has a flow of air flowing therethrough and the third tube is in thermal contact with the first tube and the second tube.

Abstract: An emergency shelter includes a domed foam structure that is constructed on-site or at a remote location from foam that can be mixed on-site. The structure can be made on-site by spraying foam in a flowable state in a predetermined pattern to build up walls to form a dome. The foam can be sprayed, for example, in a substantially helical pattern from a centrally located spray nozzle that is rotated to deposit a finite-thickness increment of foam over a time period sufficient that, by the time the nozzle reaches a previously sprayed area, the foam already deposited has had time to cure.

Abstract: A filter assembly having a filter head having inlet and outlet ports and a top cap having a substantially curved, non-planar flange portion, the non-planar flange sealingly received within the filter head such that the filter head is divided into inlet and outlet partitions. In some embodiments, the flange portion has a generally s-shaped cross-sectional profile. The flange portion incorporating a modified venturi for improved flow of both inlet and outlet streams through the filter assembly.

Abstract: A drying device includes an air/air heat exchanger and an air/refrigerant heat exchanger. The air refrigerant heat exchanger includes a phase change material.

Abstract: A drying device includes an air/air heat exchanger and an air/refrigerant heat exchanger. The air refrigerant heat exchanger includes a phase change material.

Abstract: A filter assembly having a filter head having inlet and outlet ports and a top cap having a substantially curved, non-planar flange portion, the non-planar flange sealingly received within the filter head such that the filter head is divided into inlet and outlet partitions. In some embodiments, the flange portion has a generally s-shaped cross-sectional profile. The flange portion incorporating a modified venturi for improved flow of both inlet and outlet streams through the filter assembly.

Abstract: A filter assembly comprising a filter head having inlet and outlet ports; a filter bowl attached to the filter head, wherein the filter bowl has a drain hole located at the bottom of the filter bowl for draining fluids; a filter element housed within the filter bowl, the filter element including a barrier of filtration media, a drain layer and at least one support tube; wherein a pressure differential exists across the filter element; a bottom cap that seals fluid within the filter element; a top cap having a non-planar flange portion, wherein the flange portion has a substantially curving, generally s-shaped cross-sectional profile, the non-planar flange sealingly received within the filter head such that the filter head is divided into inlet and outlet partitions; wherein the top cap directs fluid from the inlet port into the filter element, where the fluid flows through the barrier of filtration media and then out of the assembly through the outlet port; and, a float drain component attached to the base of

Abstract: A filter assembly comprising a filter head having inlet and outlet ports; a filter bowl attached to the filter head, wherein the filter bowl has a drain hole located at the bottom of the filter bowl for draining fluids; a filter element housed within the filter bowl, the filter element including a barrier of filtration media, a drain layer and at least one support tube; wherein a pressure differential exists across the filter element; a bottom cap that seals fluid within the filter element; a top cap having a non-planar flange portion, wherein the flange portion has a substantially curving, generally s-shaped cross-sectional profile, the non-planar flange sealingly received within the filter head such that the filter head is divided into inlet and outlet partitions; wherein the top cap directs fluid from the inlet port into the filter element, where the fluid flows through the barrier of filtration media and then out of the assembly through the outlet port; and, a float drain component attached to the base of

Abstract: A coalescing type gas filter includes a filtering element enclosed in an inner chamber which is housed in an outer chamber and a drain device to simultaneously drain accumulated liquid in both the inner chamber and the outer chamber. The drain device contains a pressure sensitive valve that regulates opening of the drain in response to a drop in pressure.

Abstract: A heat exchanger having an air/air heat exchanger, an air/refrigerant heat exchanger coupled to the air/air heat exchanger by a connecting tube, and a phase change material. The air/refrigerant heat exchanger having a series of stacked plates, such that the phase change material is contained within a first gap between one of the stacked plates and another of the stacked plates.

Abstract: Adsorbents for use in regenerable adsorbent fractionators. The adsorbent may be in the form of composite adsorbent wherein each granule is an admixture of tabular alumina particles and adsorbent medium particles or the adsorbent may be in the form of an admixture of tabular alumina granules and adsorbent medium granules.

Abstract: An improved method and apparatus is disclosed for removing condensable material from a gas. The gas is caused to flow in series through a chiller for cooling the gas and condensing the condensable material from the gas, then through a separator to separate the condensate from the gas, and then passing the gas through a reheater to reheat the gas. A predetermined charge of refrigerant is passed in a closed cycle through the chiller to cool the gas by absorbing the heat from the gas and evaporating, then the gaseous refrigerant is compressed by a compression unit having an electric drive means in which an amount of energy is added to the gaseous refrigerant. The hot, pressurized, gaseous refrigerant is then passed through an auxiliary condenser sized to remove the energy that was added to the refrigerant by the compression unit at no load conditions, then the refrigerant is passed through the reheater to further condense the refrigerant and to transfer heat to the exiting gas.

Abstract: An air purification system chills incoming air to condense water and toxic gases, adsorbs toxic molecules, reheats the air to reduce its relative humidity, and then converts oxidizable contaminants into carbon dioxide with an oxidation catalyst.

Abstract: A filter assembly comprising a filter head having inlet and outlet ports; a filter bowl attached to the filter head, wherein the filter bowl has a drain hole located at the bottom of the filter bowl for draining fluids; a filter element housed within the filter bowl, the filter element including a barrier of filtration media, a drain layer and at least one support tube; wherein a pressure differential exists across the filter element; a bottom cap that seals fluid within the filter element; a top cap having a non-planar flange portion, wherein the flange portion has a substantially curving, generally s-shaped cross-sectional profile, the non-planar flange sealingly received within the filter head such that the filter head is divided into inlet and outlet partitions; wherein the top cap directs fluid from the inlet port into the filter element, where the fluid flows through the barrier of filtration media and then out of the assembly through the outlet port; and, a float drain component attached to the base of