Patents by Inventor David Kolstad
David Kolstad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11278206Abstract: An imaging system for a patient comprises an imaging probe. The imaging probe comprises: an elongate shaft for insertion into the patient and comprising a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion; a rotatable optical core comprising a proximal end and a distal end, the rotatable optical core configured to optically and mechanically connect with an interface unit; a probe connector positioned on the elongate shaft proximal end and surrounding at least a portion of the rotatable optical core and an optical assembly positioned in the elongate shaft distal portion and proximate the rotatable optical core distal end, the optical assembly configured to direct light to tissue and collect reflected light from the tissue. A shear-thinning fluid can be provided between the elongate shaft and the rotatable optical core, such as to reduce undesired rotational variations of the rotatable optical core.Type: GrantFiled: April 15, 2016Date of Patent: March 22, 2022Assignee: Gentuity, LLCInventors: Christopher Petroff, Michael Atlas, David Kolstad, Christopher Petersen, Nareak Douk, J. Christopher Flaherty
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Patent number: 11247922Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: December 22, 2017Date of Patent: February 15, 2022Assignee: Silver Bullet Water Treatment Company, LLCInventors: David Kolstad, David Sunshine
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Publication number: 20180125372Abstract: An imaging system for a patient comprises an imaging probe. The imaging probe comprises: an elongate shaft for insertion into the patient and comprising a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion; a rotatable optical core comprising a proximal end and a distal end, the rotatable optical core configured to optically and mechanically connect with an interface unit; a probe connector positioned on the elongate shaft proximal end and surrounding at least a portion of the rotatable optical core and an optical assembly positioned in the elongate shaft distal portion and proximate the rotatable optical core distal end, the optical assembly configured to direct light to tissue and collect reflected light from the tissue. A shear-thinning fluid can be provided between the elongate shaft and the rotatable optical core, such as to reduce undesired rotational variations of the rotatable optical core.Type: ApplicationFiled: April 15, 2016Publication date: May 10, 2018Inventors: Christopher Petroff, Michael Atlas, David Kolstad, Christopher Petersen, Nareak Douk, J. Christopher Flaherty
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Publication number: 20180118589Abstract: A water treatment device and methods of treating water such as cooling tower water, agricultural water, water used in the production of oil and/or gas, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: December 22, 2017Publication date: May 3, 2018Inventor: David Kolstad
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Publication number: 20180118591Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: December 22, 2017Publication date: May 3, 2018Inventors: David Kolstad, David Sunshine
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Patent number: 9862627Abstract: A water treatment device and methods of treating water such as cooling tower water, agricultural water, water used in the production of oil and/or gas, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: March 2, 2017Date of Patent: January 9, 2018Assignee: SILVER BULLET WATER TREATMENT COMPANY, LLCInventor: David Kolstad
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Patent number: 9850148Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: January 28, 2015Date of Patent: December 26, 2017Assignee: SILVER BULLET WATER TREATMENT COMPANY, LLCInventors: David Kolstad, David Sunshine
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Publication number: 20170197856Abstract: A water treatment device and methods of treating water such as cooling tower water, agricultural water, water used in the production of oil and/or gas, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: March 2, 2017Publication date: July 13, 2017Inventor: David Kolstad
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Patent number: 9650270Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: March 9, 2016Date of Patent: May 16, 2017Assignee: SILVER BULLET WATER TREATMENT COMPANY, LLCInventors: David Kolstad, David Sunshine
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Patent number: 9617177Abstract: A water treatment device and methods of treating water such as cooling tower water, agricultural water, water used in the production of oil and/or gas, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: September 25, 2015Date of Patent: April 11, 2017Assignee: SILVER BULLET WATER TREATMENT COMPANY, LLCInventor: David Kolstad
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Publication number: 20160185622Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: March 9, 2016Publication date: June 30, 2016Inventors: David Kolstad, David Sunshine
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Patent number: 9321665Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: April 11, 2012Date of Patent: April 26, 2016Assignee: Silver Bullet Water Treatment Company, LLCInventors: David Kolstad, David Sunshine
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Publication number: 20160083275Abstract: A water treatment device for treating water in water systems such as cooling towers, evaporative coolers, swimming pools, fountains, sewage wastewater systems, water troughs for agricultural animals, agricultural runoff, and fisheries is described. The water treatment device utilizes a magnetic field, a catalyst, and ultraviolet (UV) radiation to produce a treated gas with increased oxygen radicals to treat a body of water. A mount disposed about a UV lamp may comprise the catalyst material or materials to increase the production of oxygen radicals. The resulting treated gas may be placed in contact with a body of water, for example, to reduce particulate build up, biological matter, and other pollutants.Type: ApplicationFiled: February 9, 2015Publication date: March 24, 2016Inventor: David Kolstad
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Publication number: 20160052809Abstract: A water treatment device and methods of treating water such as cooling tower water, agricultural water, water used in the production of oil and/or gas, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: September 25, 2015Publication date: February 25, 2016Inventor: David Kolstad
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Patent number: 9187344Abstract: A water treatment device and methods of treating water such as cooling tower water, agricultural water, water used in the production of oil and/or gas, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: GrantFiled: November 28, 2012Date of Patent: November 17, 2015Assignee: Silver Bullet Water Treatment Company, LLCInventor: David Kolstad
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Publication number: 20150136709Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: January 28, 2015Publication date: May 21, 2015Inventors: David Kolstad, David Sunshine
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Publication number: 20150125545Abstract: A water treatment device and methods of treating water such as in aquaculture systems, are described. The water treatment device utilizes oxygen containing air that is exposed to ultraviolet radiation and to a magnetic field to treat the water resulting in reduced and controlled Vibrio bacterial levels in the treated water.Type: ApplicationFiled: September 24, 2014Publication date: May 7, 2015Inventors: David Kolstad, David Sunshine
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Patent number: 8361384Abstract: A water treatment device and methods of treating cooling tower water are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat cooling tower water, resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components.Type: GrantFiled: August 3, 2009Date of Patent: January 29, 2013Assignee: Aardvark IP Holding, LLCInventor: David Kolstad
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Publication number: 20120261349Abstract: A water treatment device and methods of treating water such as cooling tower water, swimming pool water, and hot tub or spa water, are described. The water treatment device utilizes ultraviolet radiation, a magnetic field, and ozone fortified air to treat the water, typically resulting in reduced microbial contamination and reduced alkalinity in cooling tower water. Cooling tower water may consequently be run at higher cycles of concentration while reducing or eliminating deposition of minerals on cooling tower components. Swimming pool water and hot tub water treated with the water treatment device typically requires less chlorine, and chlorine levels are typically more stable than without the device.Type: ApplicationFiled: April 11, 2012Publication date: October 18, 2012Applicant: AARDVARK IP HOLDING, LLCInventors: David Kolstad, David Sunshine
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Publication number: 20060086249Abstract: A device and method for preventing ingression of contaminants and moisture and for removing moisture from a fluid reservoir, the device comprising a fluid reservoir for supporting a fluid therein, a fluid reservoir opening for allowing an exchanging of air between an interior of the fluid reservoir and the ambient surrounding, and a membrane-based reservoir dryer located in fluid communication with the fluid reservoir, the membrane-based reservoir dryer comprising a source of compressed gas and a membrane dryer for drying the compressed gas to increase the capacity of the compressed gas for absorbing moisture from the fluid in the reservoir.Type: ApplicationFiled: October 24, 2005Publication date: April 27, 2006Inventors: John Burban, Michael Spearman, David Kolstad, Craig Cuta