| Patent Number |
Title Of Patent |
Date Issued |
| D597189 |
Filter cassette |
July 28, 2009 |
|
| 7625418 |
Spacer arrangement for pleated filter |
December 1, 2009 |
| A pleated fluid filter having a pair of spaced longitudinally extending flanks is formed by at least one layer of a fluid filter media. A spacing member is integral with one of the flanks and extends outwardly in contacting relation with an adjacent flank. |
| 7588629 |
Filter cassette |
September 15, 2009 |
| A filter cassette having opposing rectangular side panels with at least one pair of filter media containers there between wherein each filter media container has a pair of opposing rectangular end plates and a pair of opposing rectangular media screens, each pair of containers are in a |
| 7588618 |
Filter cassette rack |
September 15, 2009 |
| A filter cassette rack and tracks wherein the rack is a three dimensional rectangular rack having at least two opposing open sides, sealing and non-sealing support tracks span the rack providing filter cassette guides and sealing means for a plurality of filter cassettes. |
| 7398887 |
Product and method of forming successive layers of face-to-face adjacent media with calculated p |
July 15, 2008 |
| 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 thicknesse |
| 7390443 |
Method of forming successive layers of face-to-face adjacent media with calculated pore size |
June 24, 2008 |
| 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 thicknesse |
| 7380767 |
Valve |
June 3, 2008 |
| A valve comprises a housing (1) having an inlet (4) and an outlet (5), and a pressure sensing port (8). A piston (6) slides in a part (3) of the housing (1) in response to a difference between a first fluid pressure at the pressure sensing port on the one side of the piston, and a second |
| 7332012 |
Multi-stage filtering apparatus |
February 19, 2008 |
| 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. |
| 7255723 |
Crest supported filter frame assembly and method |
August 14, 2007 |
| 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 brea |
| 7210914 |
Series apparatus for forming layered fibrous mat of differing fibers and controlled surfaces |
May 1, 2007 |
| 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 |
| 7112255 |
Thermobondable filter medium and border frame and method of making same |
September 26, 2006 |
| 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. |
| 7105124 |
Method, apparatus and product for manufacturing nanofiber media |
September 12, 2006 |
| 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 envir |
| 7097684 |
Method of forming combined pleated scrim and filter media materials and product of same |
August 29, 2006 |
| 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 a |
| 7069734 |
Methods for detecting surge in centrifugal compressors |
July 4, 2006 |
| 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 e |
| 6908294 |
Apparatus for forming a layered fibrous mat of varied porosity |
June 21, 2005 |
| 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 portio |
| 6758878 |
Thermobondable filter medium and border frame and method of making same |
July 6, 2004 |
| 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. |
| 6736914 |
Series arrangement for forming layered fibrous mat of differing fibers and controlled surfaces |
May 18, 2004 |
| 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 di |
| 6652748 |
Treated filter media and frame |
November 25, 2003 |
| 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 |
| 6575046 |
Air mass flow measuring device and method of use |
June 10, 2003 |
| 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, t |
| 6517429 |
Contamination freeing work arrangement |
February 11, 2003 |
| 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 th |
| 6387140 |
Fluid stream velocity distribution control |
May 14, 2002 |
| 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 |
| 6206687 |
High turndown modulating gas burner |
March 27, 2001 |
| 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 bo |
| 6113358 |
Scroll compressors |
September 5, 2000 |
| A method of improving the efficiency of a pair of first and second scroll refrigeration compressors, at least the second of which includes an intermediate port is characterized in that the delivery of the first scroll compressor is fed into the intermediate port of the second compres |
