Patents Assigned to Macnaught Pty. Limited
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Patent number: 10808687Abstract: An on-demand fluid transfer pump includes a power head removably connectable on top of a stem that is removably connectable to a fluid supply. The power head includes an electric pump and a flow control unit configured to automatically switch the electric pump on and off. The flow control unit includes a magnetic sensor and the stem includes a suction tube, a fluid chamber, a plunger chamber, and a magnetic plunger reciprocable within the plunger chamber in response to pressure changes in the fluid chamber. The magnetic plunger is biased to deactuate the magnetic sensor to switch on the electric pump to pressurize the fluid supply for delivery to the fluid dispenser. The magnetic plunger is pushed when pressure in the fluid chamber rises to thereby actuate the magnetic sensor to switch off the electric pump.Type: GrantFiled: August 29, 2018Date of Patent: October 20, 2020Assignee: MACNAUGHT PTY LIMITEDInventors: Marco Uccellani, Welly Mulyadi, Pawel Szczurowski, Greg Josephson
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Patent number: 7331484Abstract: A fluid dispensing device of the type, including a shut off valve means for controlling fluid flow through the device and an actuating trigger operable to cause the shut off valve to adopt an open position in which fluid can be dispensed from the device and a closed position, a control meter which enables the volume of fluid being disposed to be measured, a latching mechanism operable to hold the shut off valve in the open position and cause the shut off valve to adopt the closed position when the predetermined volume of fluid has been dispensed, and a setting mechanism being operatively connected to the control meter for indicating a predetermined volume of fluid required to be dispensed and indicating when that predetermined volume has been dispensed.Type: GrantFiled: December 2, 2004Date of Patent: February 19, 2008Assignee: Macnaught Pty LimitedInventor: Peter R Kerr
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Publication number: 20060027594Abstract: A fluid dispensing device of the type, including a shut off valve means for controlling fluid flow through the device and an actuating trigger operable to cause the shut off valve to adopt an open position in which fluid can be dispensed from the device and a closed position, a control meter which enables the volume of fluid being disposed to be measured, a latching mechanism operable to hold the shut off valve in the open position and cause the shut off valve to adopt the closed position when the predetermined volume of fluid has been dispensed, and a setting mechanism being operatively connected to the control meter for indicating a predetermined volume of fluid required to be dispensed and indicating when that predetermined volume has been dispensed.Type: ApplicationFiled: December 2, 2004Publication date: February 9, 2006Applicant: Macnaught Pty LimitedInventor: Peter Kerr
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Patent number: 5499968Abstract: An in-line fluid flow controller for use with a fluid administration set for infusion of fluid into the body of a patient, the administration set comprising a reservoir of fluid connected to a supply line having a discharge orifice; characterized in that the fluid flow controller comprises a housing having a chamber therein, an inlet to and an outlet from said chamber, said housing being adapted to receive therewithin at least one flow restrictor each having an orifice or orifices configured to control the rate of fluid flow therethrough and into the body of a patient such that the fluid is infused into a patient at a predetermined constant flow rate or at a flow rate within predetermined limits via said discharge orifice.Type: GrantFiled: July 8, 1994Date of Patent: March 19, 1996Assignee: Macnaught Pty LimitedInventors: Zoran Milijasevic, Graham Bode
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Patent number: 5403592Abstract: A composition comprised of at least one surface active phospholipid, hyaluronic acid or a water soluble salt thereof in saline solution for use as a lubricant, in particular, for physiological use such as the lubrication of joints. The composition can be used to reduce the coefficient of kinetic friction between surfaces in contact with each other, particularly load-bearing surfaces.Type: GrantFiled: June 8, 1990Date of Patent: April 4, 1995Assignee: MacNaught Pty LimitedInventor: Brian A. Hills
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Patent number: D257739Type: GrantFiled: January 18, 1978Date of Patent: December 30, 1980Assignee: Macnaught Pty. LimitedInventor: Graham J. Luker
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Patent number: D428903Type: GrantFiled: August 4, 1999Date of Patent: August 1, 2000Assignee: Macnaught Pty LimitedInventors: Peter Kerr, Bianto Santoso
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Patent number: D789226Type: GrantFiled: May 4, 2016Date of Patent: June 13, 2017Assignee: Macnaught Pty LimitedInventor: Artur Wiedmann