Patents by Inventor Richard Janse Van Rensburg
Richard Janse Van Rensburg 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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Publication number: 20240036070Abstract: There is provided a sample ejection system for ejecting a sample from a flow of fluid, the system comprises: a fluid flow channel for receiving, in use, the flow of fluid; a fluid inlet channel connected to the flow channel and arranged to receive, in use, pressurised fluid; a fluid outlet channel connected to the flow channel at a location downstream in the flow direction of the flow of fluid and comprises an outlet. The system is arranged such that, in use, pressurised fluid is applied to the fluid flow channel via the fluid inlet channel to drive fluid from the region of the fluid flow channel between the fluid inlet and outlet channels through the fluid outlet channel and out of the outlet.Type: ApplicationFiled: October 12, 2023Publication date: February 1, 2024Inventors: Richard Janse VAN RENSBURG, Benjamin James METCALF
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Patent number: 11835537Abstract: There is provided a sample ejection system for ejecting a sample from a flow of fluid, the system comprises: a fluid flow channel for receiving, in use, the flow of fluid; a fluid inlet channel connected to the flow channel and arranged to receive, in use, pressurised fluid; a fluid outlet channel connected to the flow channel at a location downstream in the flow direction of the flow of fluid and comprises an outlet. The system is arranged such that, in use, pressurised fluid is applied to the fluid flow channel via the fluid inlet channel to drive fluid from the region of the fluid flow channel between the fluid inlet and outlet channels through the fluid outlet channel and out of the outlet.Type: GrantFiled: October 18, 2018Date of Patent: December 5, 2023Assignee: TTP PlcInventors: Richard Janse Van Rensburg, Benjamin James Metcalf
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Publication number: 20230143960Abstract: A cartridge can comprise a first elastomeric membrane and a second elastomeric membrane, and portions of the elastomeric membranes which are sealed to each other can circumscribe unsealed portions of the membranes. In a resting state, the unsealed portion of the first elastomeric membrane abuts or is proximate to the unsealed portion of the second elastomeric membrane. One or more reagents can be injected between the unsealed portions of the first and second elastomeric membranes to push the unsealed portions apart from each other in this region of the membranes. The unsealed portions can be sequentially pushed apart in downstream regions to form a channel between the elastomeric membranes. Positively displaced fluid pushes the unsealed membrane portions apart to a volume that conforms to the volume of the fluid to minimize or prevent dead volume in the channel and thus minimize or prevent air bubbles in the fluid.Type: ApplicationFiled: November 7, 2022Publication date: May 11, 2023Inventors: William LAFFERTY, Mikhail Bashtanov, Peter Crossley, Abi Graham, Gary Jepps, Richard Lintern, Stuart Lowe, Yang Lu, James Onslow, Neil Pollock, Sebastian Rammensee, Richard Janse van Rensburg, Steve Wakefield, Peter Eugster
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Publication number: 20230061115Abstract: A fluidic device (1) configured to drive movement of fluid under centrifugal force comprises a central region about a central rotational axis (X) of the device and a peripheral region extending radially outwards from the central region. A fluid reservoir (4) provided in the central region of the device receives a fluid sample and communicates with at least one fluidic system (6), which extends radially outwards from the fluid reservoir (4) into the peripheral region of the device. Each fluidic system (6) comprises a fluid analysis chamber (12) configured to retain a portion of a fluid sample for analysis. A fluidic channel arrangement (26) is configured to enable fluid communication between the fluid reservoir (4) and the fluid analysis chamber (12), and movement of the fluid sample through the fluidic channel arrangement is driven by the centrifugal force created by rotational motion of the device about the central rotational axis (X).Type: ApplicationFiled: February 1, 2021Publication date: March 2, 2023Inventors: Seoirsse MURRAY, Richard JANSE VAN RENSBURG, James IZZARD, Steve GRIMWADE, Piers HARDING, Ewan CHIRNSIDE, Mike MALECHA
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Publication number: 20210025913Abstract: There is provided a sample ejection system for ejecting a sample from a flow of fluid, the system comprises: a fluid flow channel for receiving, in use, the flow of fluid; a fluid inlet channel connected to the flow channel and arranged to receive, in use, pressurised fluid; a fluid outlet channel connected to the flow channel at a location downstream in the flow direction of the flow of fluid and comprises an outlet. The system is arranged such that, in use, pressurised fluid is applied to the fluid flow channel via the fluid inlet channel to drive fluid from the region of the fluid flow channel between the fluid inlet and outlet channels through the fluid outlet channel and out of the outlet.Type: ApplicationFiled: October 18, 2018Publication date: January 28, 2021Inventors: Richard Janse VAN RENSBURG, Benjamin James METCALF
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Publication number: 20190022637Abstract: A cartridge can comprise a first elastomeric membrane and a second elastomeric membrane, and portions of the elastomeric membranes which are sealed to each other can circumscribe unsealed portions of the membranes. In a resting state, the unsealed portion of the first elastomeric membrane abuts or is proximate to the unsealed portion of the second elastomeric membrane. One or more reagents can be injected between the unsealed portions of the first and second elastomeric membranes to push the unsealed portions apart from each other in this region of the membranes. The unsealed portions can be sequentially pushed apart in downstream regions to form a channel between the elastomeric membranes. Positively displaced fluid pushes the unsealed membrane portions apart to a volume that conforms to the volume of the fluid to minimize or prevent dead volume in the channel and thus minimize or prevent air bubbles in the fluid.Type: ApplicationFiled: September 2, 2016Publication date: January 24, 2019Inventors: William M. Lafferty, Mikhail Bashtanov, Peter Crossley, Abi Graham, Gary Jepps, Richard Lintern, Stuart Lowe, Yang Lu, James Onslow, Neil Pollock, Sebastian Rammensee, Richard Janse van Rensburg, Steve Wakefield, Peter Eugster
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Patent number: 8821134Abstract: A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations.Type: GrantFiled: June 3, 2009Date of Patent: September 2, 2014Assignee: The Technology Partnership PlcInventor: Richard Janse Van Rensburg
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Patent number: 8329346Abstract: A gas consuming battery is provided with an air regulating system for regulating the flow of air into the battery. The air regulating system includes a valve having a moving plate disposed adjacent to another plate. The moving plate and the other plate can both have apertures therethrough that at least partially align in an open valve and are misaligned in a closed valve. The air regulating system can also include an actuator for moving the moving plate to open and close the valve. A sealing medium including a fluid containment layer and a fluid partially contained therein is disposed between the moving and fixed plates to enhance valve operation and sealing effectiveness. The fluid containment layer includes a porous material, and the fluid has a maximum wicking height, that is equal to or greater than a maximum interfacial dimension between the valve plates.Type: GrantFiled: December 20, 2011Date of Patent: December 11, 2012Assignee: Eveready Battery Company, Inc.Inventors: Richard Janse van Rensburg, David M. Blakey, Steven D. Jones, Jerald D. Baldwin, Jr., Richard A. Langan
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Patent number: 8297947Abstract: A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations. The pump further comprises a valve for controlling the flow of fluid through the valve. The valve has first and second plates with offsetting apertures and a sidewall disposed between the plates around the perimeter of the plates to form a cavity in fluid communication with the apertures.Type: GrantFiled: June 3, 2009Date of Patent: October 30, 2012Assignee: The Technology Partnership PlcInventors: Richard Janse Van Rensburg, Stuart Andrew Hatfield, Justin Rorke Buckland, James Edward McCrone
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Publication number: 20120164545Abstract: A gas consuming battery is provided with an air regulating system for regulating the flow of air into the battery. The air regulating system includes a valve having a moving plate disposed adjacent to another plate. The moving plate and the other plate can both have apertures therethrough that at least partially align in an open valve and are misaligned in a closed valve. The air regulating system can also include an actuator for moving the moving plate to open and close the valve. A sealing medium including a fluid containment layer and a fluid partially contained therein is disposed between the moving and fixed plates to enhance valve operation and sealing effectiveness. The fluid containment layer includes a porous material, and the fluid has a maximum wicking height, that is equal to or greater than a maximum interfacial dimension between the valve plates.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Applicant: EVEREADY BATTERY COMPANY, INC.Inventors: Richard Janse van Rensburg, David M. Blakey, Steven D. Jones, Jerald D. Baldwin, JR., Richard A. Langan
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Publication number: 20100310398Abstract: A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations. The pump further comprises a valve for controlling the flow of fluid through the valve. The valve has first and second plates with offsetting apertures and a sidewall disposed between the plates around the perimeter of the plates to form a cavity in fluid communication with the apertures.Type: ApplicationFiled: June 3, 2009Publication date: December 9, 2010Inventors: Richard Janse Van Rensburg, Stuart Andrew Hatfield, Justin Rorke Buckland, James Edward McCrone
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Publication number: 20100310397Abstract: A pump having a substantially cylindrical shape and defining a cavity formed by a side wall closed at both ends by end walls wherein the cavity contains a fluid is disclosed. The pump further comprises an actuator operatively associated with at least one of the end walls to cause an oscillatory motion of the driven end wall to generate displacement oscillations of the driven end wall within the cavity. The pump further comprises an isolator operatively associated with a peripheral portion of the driven end wall to reduce dampening of the displacement oscillations.Type: ApplicationFiled: June 3, 2009Publication date: December 9, 2010Inventor: Richard Janse Van Rensburg
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Publication number: 20060201327Abstract: A gas flow generator comprising: an ultrasonic driver comprising a piezoelectric or electrostrictive transducer mounted on a substrate, operation of the transducer being arranged to cause the driver to bend; a first membrane disposed on or formed integrally with the transducer or the substrate; and a second membrane mounted substantially parallel with the driver and spaced a given distance therefrom, one of the membranes being perforate, whereby ultrasonic bending of the driver on actuation of the transducer causes a gas flow through the perforate membrane.Type: ApplicationFiled: April 7, 2004Publication date: September 14, 2006Inventors: Richard Janse Van Rensburg, Robert Selby, Francoise Dufour, Justin Buckland, John Somerville