Patents Assigned to Macnaught Pty. Limited
  • Patent number: 10808687
    Abstract: 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: Grant
    Filed: August 29, 2018
    Date of Patent: October 20, 2020
    Assignee: MACNAUGHT PTY LIMITED
    Inventors: Marco Uccellani, Welly Mulyadi, Pawel Szczurowski, Greg Josephson
  • Patent number: 7331484
    Abstract: 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: Grant
    Filed: December 2, 2004
    Date of Patent: February 19, 2008
    Assignee: Macnaught Pty Limited
    Inventor: Peter R Kerr
  • Publication number: 20060027594
    Abstract: 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: Application
    Filed: December 2, 2004
    Publication date: February 9, 2006
    Applicant: Macnaught Pty Limited
    Inventor: Peter Kerr
  • Patent number: 5499968
    Abstract: 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: Grant
    Filed: July 8, 1994
    Date of Patent: March 19, 1996
    Assignee: Macnaught Pty Limited
    Inventors: Zoran Milijasevic, Graham Bode
  • Patent number: 5403592
    Abstract: 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: Grant
    Filed: June 8, 1990
    Date of Patent: April 4, 1995
    Assignee: MacNaught Pty Limited
    Inventor: Brian A. Hills
  • Patent number: D257739
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: December 30, 1980
    Assignee: Macnaught Pty. Limited
    Inventor: Graham J. Luker
  • Patent number: D428903
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: August 1, 2000
    Assignee: Macnaught Pty Limited
    Inventors: Peter Kerr, Bianto Santoso
  • Patent number: D789226
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: June 13, 2017
    Assignee: Macnaught Pty Limited
    Inventor: Artur Wiedmann