Patents Assigned to Kelso Technologies INc.
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Patent number: 9625045Abstract: Described herein is an improved externally mounted pressure relief valve that is especially adapted for rail tank cars or other large closed containers that contain or transport fluids, including liquids and gases. The pressure relief valve comprises a plurality of spring assemblies, and each spring assembly contains a pre-determined number of spring leaves. Each spring assembly is coiled upon a corresponding spring drum, and each spring drum is penetrated by a corresponding spring drum bolt. The spring assemblies are preferably aligned in at least two horizontal planes that are parallel to each other and normal to the vertical length of a spring block. The spring block and sealing disk are mounted vertically over the valve seat and within the confines of vertically extending spring brackets.Type: GrantFiled: September 7, 2015Date of Patent: April 18, 2017Assignee: Kelso Technologies Inc.Inventor: Barry LaCroix
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Patent number: 9618126Abstract: Described herein is an improved ball valve assembly for use in a tank or a tank-like container. This improved ball valve assembly prevents leakage of a liquid with corrosive and abrasive contaminants within the tank or a tank like container. This improved ball valve assembly is especially useful in a railroad tank car that contains a liquid commodity in whenever a tank is mobile and subjected to wide temperature variations. The improved ball valve assembly contains a ball component made of a ceramic material. A ceramic wiper (i) mechanically seals against the ball component and (ii) prevents contaminants from embedding within, or otherwise abrading, top and bottom seats within the ball valve assembly. Also contained in the preferred embodiment of this invention is an improved drive coupling that (i) eliminates the previously existing need for custom square drive tool (ii) pre-attached to the ball valve assembly.Type: GrantFiled: April 14, 2014Date of Patent: April 11, 2017Assignee: Kelso Technologies Inc.Inventor: Barry LaCroix
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Patent number: 9568146Abstract: Described herein is an improved externally mounted pressure relief valve that is especially adapted for rail tank cars or other large closed containers that contain or transport fluids, including liquids and gases. The pressure relief valve comprises a plurality of spring assemblies, and each spring assembly contains a pre-determined number of spring leaves. Each spring assembly is coiled upon a corresponding spring drum, and each spring drum is penetrated by a corresponding spring drum bolt. The spring assemblies are preferably aligned in at least two horizontal planes that are parallel to each other and normal to the vertical length of a spring block. The spring block and sealing disk are mounted vertically over the valve seat and within the confines of vertically extending spring brackets.Type: GrantFiled: September 7, 2015Date of Patent: February 14, 2017Assignee: Kelso Technologies Inc.Inventor: Barry LaCroix
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Patent number: 9470320Abstract: Described herein is an improved ball valve assembly for use in a tank or a tank-like container. This improved ball valve assembly prevents leakage of a liquid with corrosive and abrasive contaminants within the tank or a tank like container. This improved ball valve assembly is especially useful in a railroad tank car that contains a liquid commodity in whenever a tank is mobile and subjected to wide temperature variations. The improved ball valve assembly contains a ball component made of a ceramic material. A ceramic wiper (i) mechanically seals against the ball component and (ii) prevents contaminants from embedding within, or otherwise abrading, top and bottom seats within the ball valve assembly. Also contained in the preferred embodiment of this invention is an improved drive coupling that (i) eliminates the previously existing need for custom square drive tool (ii) pre-attached to the ball valve assembly.Type: GrantFiled: June 3, 2013Date of Patent: October 18, 2016Assignee: Kelso Technologies Inc.Inventor: Barry LaCroix
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Patent number: 9234601Abstract: Described herein is a pressure relief valve that vents contents from a rail tank car or similar container at two preset pressures. The lower preset pressure is attained whenever specific valve attachment devices melt well below the spontaneous combustion temperature of the contents of a rail tank car or similar container. When these attachment devices melt, formerly attached corresponding constant force spring assemblies disconnect from a spring plate. Without these operative attached spring assemblies there is less force to oppose the pressure from the contents of rail tank car or similar container. With less opposing force, the contents of the rail tank car or similar container escape from under a dislodged sealing disk before the rail tank car or similar container (i) over pressurizes and causes the tank shell to fail or (ii) the contents self-combust, and both of which events cause an explosion.Type: GrantFiled: April 12, 2014Date of Patent: January 12, 2016Assignee: Kelso Technologies Inc.Inventors: Barry LaCroix, Mario Nunez
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Patent number: 9163738Abstract: Described herein is an improved externally mounted pressure relief valve that is especially adapted for rail tank cars or other large closed containers that contain or transport fluids, including liquids and gases. The pressure relief valve comprises a plurality of spring assemblies, and each spring assembly contains a pre-determined number of spring leaves. Each spring assembly is coiled upon a corresponding spring drum, and each spring drum is penetrated by a corresponding spring drum bolt. The spring assemblies are preferably aligned in at least two horizontal planes that are parallel to each other and normal to the vertical length of a spring block. The spring block and sealing disk are mounted vertically over the valve seat and within the confines of vertically extending spring brackets.Type: GrantFiled: September 28, 2013Date of Patent: October 20, 2015Assignee: Kelso Technologies INc.Inventor: Barry LaCroix