Patents by Inventor Danek Liwszyc
Danek Liwszyc 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: 8834232Abstract: A high pressure cutting arrangement includes two pressurized streams: a liquid stream and a slurry stream. The two streams are independently pressurized, and then combined at pressure. The combined stream is then accelerated through a nozzle to provide a cutting jet.Type: GrantFiled: July 19, 2013Date of Patent: September 16, 2014Assignee: Abrasive Cutting Technology Ltd.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua Liwszyc
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Publication number: 20130324013Abstract: A high pressure cutting arrangement includes two pressurized streams: a liquid stream and a slurry stream. The two streams are independently pressurized, and then combined at pressure. The combined stream is then accelerated through a nozzle to provide a cutting jet.Type: ApplicationFiled: July 19, 2013Publication date: December 5, 2013Inventors: Danek Liwszyc, Adam Liwszyc, Joshua Adam Liwszyc
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Patent number: 8591290Abstract: A nozzle for a high pressure cutting arrangement is disclosed. The cutting arrangement comprises a liquid stream and a slurry stream, the slurry comprising abrasive particles suspended in a fluid, with both fluids being supplied into the nozzle under pressure. The nozzle has a combining chamber, having an entry region arranged to receive the liquid stream and the slurry stream, such that the pressure in the entry region is determined by the pressure in the liquid stream. The pressure in the entry region acts on the pressure in the slurry stream to regulate the pressure in the slurry stream.Type: GrantFiled: August 21, 2008Date of Patent: November 26, 2013Assignee: Abrasive Cutting Technology Ltd.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua A. Liwszyc
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Patent number: 8491355Abstract: A high pressure cutting arrangement is formed by combining a liquid stream, such as water, and a slurry stream, the slurry comprising abrasive particles suspended in a liquid. Energy is supplied to the liquid stream by a first energising means, such as a constant pressure pump. Energy is supplied to the slurry stream by a second energising means, such as by a piston powered by a constant volume pump. The liquid stream and the slurry stream are combined in a cutting tool, in which the supplied energy is converted to kinetic energy to produce a combined liquid and abrasive stream at high velocity.Type: GrantFiled: August 21, 2008Date of Patent: July 23, 2013Assignee: Abrasive Cutting Technology Ltd.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua A. Liwszyc
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Patent number: 8251773Abstract: A control system for a high pressure cutting arrangement is disclosed. The cutting arrangement comprises a liquid stream and a slurry stream, the slurry comprising abrasive particles suspended in a fluid. The liquid stream and the slurry stream are both supplied under pressure of about 300 MPa to a cutting tool, with at least a portion of the supplied pressure being converted to kinetic energy in the cutting tool to produce a combined liquid and abrasive stream at high velocity. The cutting tool includes a combining chamber into which both the liquid and slurry streams are introduced, the pressure in an entry region of the combining chamber being determined by the pressure of the liquid stream. The control system acts to actuate or prevent flow of slurry in the slurry stream by activation or de-activation of an energizing means up-stream of the chamber. Pressure in the slurry stream is substantially equal to the pressure in the entry region of the combining chamber whether or not slurry is flowing.Type: GrantFiled: August 21, 2008Date of Patent: August 28, 2012Assignee: Abrasive Cutting Technology Ltd.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua Adam Liwszyc
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Publication number: 20110195641Abstract: A nozzle for a high pressure cutting arrangement is disclosed. The cutting arrangement comprises a liquid stream and a slurry stream, the slurry comprising abrasive particles suspended in a fluid, with both fluids being supplied into the nozzle under pressure. The nozzle has a combining chamber, having an entry region arranged to receive the liquid stream and the slurry stream, such that the pressure in the entry region is determined by the pressure in the liquid stream. The pressure in the entry region acts on the pressure in the slurry stream to regulate the pressure in the slurry stream.Type: ApplicationFiled: August 21, 2008Publication date: August 11, 2011Applicant: ABRASIVE CUTTING TECHNOLOGY LTD.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua Adam Liwszyc
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Publication number: 20110183578Abstract: A control system for a high pressure cutting arrangement is disclosed. The cutting arrangement comprises a liquid stream and a slurry stream, the slurry comprising abrasive particles suspended in a fluid. The liquid stream and the slurry stream are both supplied under pressure of about 300 MPa to a cutting tool, with at least a portion of the supplied pressure being converted to kinetic energy in the cutting tool to produce a combined liquid and abrasive stream at high velocity. The cutting tool includes a combining chamber into which both the liquid and slurry streams are introduced, the pressure in an entry region of the combining chamber being determined by the pressure of the liquid stream. The control system acts to actuate or prevent flow of slurry in the slurry stream by activation or de-activation of an energising means up-stream of the chamber. Pressure in the slurry stream is substantially equal to the pressure in the entry region of the combining chamber whether or not slurry is flowing.Type: ApplicationFiled: August 21, 2008Publication date: July 28, 2011Applicant: ABRASIVE CUTTING TECHNOLOGY LTD.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua Adam Liwszyc
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Publication number: 20110124270Abstract: A high pressure cutting arrangement is formed by combining a liquid stream, such as water, and a slurry stream, the slurry comprising abrasive particles suspended in a liquid. Energy is supplied to the liquid stream by a first energising means, such as a constant pressure pump. Energy is supplied to the slurry stream by a second energising means, such as by a piston powered by a constant volume pump. The liquid stream and the slurry stream are combined in a cutting tool, in which the supplied energy is converted to kinetic energy to produce a combined liquid and abrasive stream at high velocity.Type: ApplicationFiled: August 21, 2008Publication date: May 26, 2011Applicant: ABRASIVE CUTTING TECHNOLOGY LTD.Inventors: Danek Liwszyc, Adam Liwszyc, Joshua Adam Liwszyc
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Publication number: 20040097171Abstract: A method of generating an abrasive liquid jet comprising a high pressure liquid jet and abrasive particles for performing working operations such as cutting and cleaning. The method involves the delivery of the abrasive particles to the high pressure liquid in a dense phase slurry. The dense phase slurry is in the form of a paste which can be delivered along a supply line. Typically, the dense phase slurry comprises a mixture of an abrasive material, water and a thickening agent. The liquid jet and the abrasive slurry are brought together in a nozzle assembly (10). The nozzle assembly (10) has a body (11) defining a chamber (17). The liquid is introduced under pressure into the chamber (17) as a liquid jet through a delivery nozzle (13). The dense phase abrasive slurry containing the abrasive particles is introduced into the chamber (17) through supply openings (23). An outlet (19) is provided from the chamber (17) through which of the liquid and abrasive slurry can issue as an abrasive liquid jet.Type: ApplicationFiled: November 20, 2003Publication date: May 20, 2004Inventors: Danek Liwszyc, Kazimiez Kacperek, Timothy Everest
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Patent number: 6156365Abstract: A process for producing fully and uniformly gelatinized hulled oats comprising the steps of:(i) adding water to the oats; and(ii) subjecting the moist oat product of step (i) to sufficient temperature and pressure for a suitable period of time to cause full and uniform gelatinization of the oats.Type: GrantFiled: March 17, 1997Date of Patent: December 5, 2000Assignee: The Quaker Oats CompanyInventor: Danek Liwszyc