Abstract: A fluid pleated filter assembly arrangement including a method and structure wherein crests of the pleated medium are sharp and narrow being enhanced by alignment of the fibers with the direction of fluid stream flow with the crests being supported by a preselectively controlled breadth and thickness support strip and adhesive fastening band disposed intermediate opposed side edges of the support strip.

Abstract: An arrangement for forming a web of fibrous media wherein at least one formed layered portion is attenuated from a first die source selectively unto a first collector and successively combining such portion with at least another formed layered portion which is attenuated from a second die source selectively unto a second collector, at least one of the outer surfaces of the web of fibrous media being of comparatively smooth skin-like nature to minimize projecting fiber ends.

Abstract: Self-supporting pleated fluid filter medium and method of making the same wherein the filter medium and accompanying flow-through border frame are of coated thermobondable materials, which are heat bonded together.

Abstract: A unified arrangement for providing a unique nanofibrous porous media formed as a chemical compound from a water-soluble polymer combined with a cross-linking agent with a balance of water, which chemical compound prevents the polymer from dissolving in water, including a humid environment.

Abstract: A high efficiency fluid filter arrangement wherein a combined layer of scrim and filter media applications is of empirically relatively estimated weight size and depth with intermediate pleat spacing so as to arrive at a combined filtration capability value in keeping with selected approved test standards.

Abstract: A filter comprising a single length of filter material with a longitudinal axis wherein the length of filter material has a contour of elongated depressions and swells or apices substantially parallel to the longitudinal axis, the filter material further has folds substantially perpendicular to the longitudinal axis of the filter material forming pleats at substantially equal intervals. A process of making the filter and apparatus used in the process are a part of the instant invention.

Abstract: A method and apparatus for detecting surge in a refrigeration system that includes a centrifugal compressor having an impeller and a compressor entrance, an evaporator that receives a fluid refrigerant, a suction line that flows the refrigerant from the evaporator to the compressor entrance. The evaporator includes a heat-exchange coil supplied with a liquid through a supply line entering the evaporator. The liquid is disposed in a heat-exchange relationship with the refrigerant within the evaporator. The method and apparatus automatically and periodically performing the steps of measuring a fluid temperature of the liquid proximate the supply line entering the evaporator; measuring a refrigerant temperature of the refrigerant proximate the compressor entrance; and using the fluid temperature and the refrigerant temperature to detect surge in the refrigeration system.

Abstract: A filter medium treated by a novel adhesive comprised of a major portion by weight of an oil group consisting of vegetable, animal, or mineral oils and a minor portion of a thickening material.

Abstract: A filtering apparatus having a filter retrieval apparatus, an integrated jib, and a clamping assembly for providing a seal between a filter and a cabinet.

Abstract: A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the pore sizes being so calculated that the overall average pore size of successive thicknesses is smaller than the pore size of the finest fiber thickness.

Abstract: An arrangement for producing a fibrous mat from a heated die source wherein the produced mat includes a first layered, preselected fiber portion of substantially straight fibers produced by directing such fibers directly to a collector source and a second layered preselected fiber portion of substantially curled fibers produced by diverting and exerting an external vertically creative curling force thereon before reaching the collector source.

Abstract: Self-supporting pleated fluid filter medium and method of making the same wherein the filter medium and accompanying flow-through border frame are of coated thermobondable materials, which are heat bonded together.

Abstract: An arrangement for forming a web of fibrous media wherein at least one formed layered portion is attenuated from a first die source selectively unto a first collector and successively combining such portion with at least another formed layered portion which is attenuated from a second die source selectively unto a second collector, at least one of the outer surfaces of the web of fibrous media being of comparatively smooth skin-like nature to minimize projecting fiber ends.

Abstract: An arrangement for producing a fibrous mat from a heated die source wherein the produced mat includes a first layered, preselected fiber portion of substantially straight fibers produced by directing such fibers directly to a collector source and a second layered preselected fiber portion of substantially curled fibers produced by diverting and exerting an external vertically creative curling force thereon before reaching the collector source.

Abstract: An arrangement for producing a fibrous mat from a heated die source wherein the produced mat includes a first layered, preselected fiber portion of substantially straight fibers produced by directing such fibers directly to a collector source and a second layered preselected fiber portion of substantially curled fibers produced by diverting and exerting an external vortically creative curling force thereon before reaching the collector source.

Abstract: A filter medium and frame therefore wherein the filter medium is treated by a novel adhesive comprised of a major portion by weight of an oil group consisting of vegetable and animal oils and a minor portion of a preselected thickening material with the rigidity of the filter medium being obtained by sandwiching the filter medium between joined mating upstream and downstream frame members.

Abstract: A flow measuring device for use with a heating, ventilation and air-conditioning (HVAC) system includes a vane being positionable in an airstream, the vane being rotatably positionable between a first minimum air mass flow disposition and a second maximum air mass flow disposition, the vane being biased in the first minimum air mass flow disposition, the disposition of the vane being responsive in part to an impingement of an air mass flow on the vane. A measuring device is operably coupled to the vane for measuring the disposition of the vane and for providing an output communication of the vane disposition, the vane disposition having a known relationship to the air mass flow. A method of use of the flow measuring device and calibration of the flow measuring device are included.

Abstract: An arrangement for treating a work object including a unique, unified method and apparatus for contaminant removal from the work object, wherein a laminar flow, ambient air stream passes through connected zones at lower pressure than ambient with particulate matter being filtered from the air stream.

Abstract: An arrangement for filtering a particulate-laden fluid stream in a confined flow-through passage which includes a porous filter media extending thereacross and a velocity distribution control member cooperative with said filter media to preselectively control the velocity of the fluid stream as such fluid stream passes through the entirety of the porous filter media.

Abstract: A gas burner and method of controlling burning, the gas burner including a controller disposed in a control cabinet, a burner cabinet, an actuator and a blower, the blower being fluidly coupled to the burner cabinet. The gas burner has an air valve that is operably, fluidly coupled to both the burner cabinet and the blower for controlling the flow of air from the blower to the burner cabinet. A gas valve is fluidly coupled to a source of gas for controlling the flow of gas from the source of gas. An actuator is communicatively coupled to the controller and is linearly coupled to the air valve and the gas valve for simultaneous linear actuation thereof responsive to commands from the controller.