ITW LIMITED Patent applications |
Patent application number | Title | Published |
20110158836 | LIQUID PAINT PUMPING APPARATUS - The invention relates to a liquid paint pumping apparatus comprising a piston reciprocable in a cylinder to pump liquid paint during a substantially horizontal pumping stroke of the piston and to charge the cylinder with paint during a reverse stroke of the piston. The apparatus further comprises a check valve disposed within the piston, the check valve comprising: a ball member, a seat, a spring urging the ball member into engagement with the seat, and a plastics cage guiding movement of the ball towards and away from the seat. The seat receives the ball member so as to form a seal to prevent flow of liquid paint between the ball and the seat during the pumping stroke of the piston, and the ball member moves away from the seat during the reverse stroke of the piston. | 06-30-2011 |
20110142372 | SEALED CONTAINER - The application describes a container, bag, pouch or envelope which has a first part and a second part, the container, bag, pouch or envelope being closed by the first part locating within the second part, the second part having a first opening for receiving the first part and a second opening for receiving the head of a breakable and disposable seal which locks into the first part in such a manner that it cannot be removed without breaking the seal, the seal in its inserted position locking the first part in place inside the second part in a tamper evident fashion. | 06-16-2011 |
20110005328 | BI-AXIAL ELECTROMAGNETIC ACTUATOR - A biaxial electromagnetic actuator for a materials testing apparatus comprises a first electromagnetic actuator for imparting a linear force to an output shaft and a second, direct drive electromagnetic actuator for imparting a rotational force to the shaft. The shaft is mounted in two combination bearings which permit the shaft to move axially and rotationally. One of the bearings is located within a hollow cylindrical member which constitutes the armature of the direct drive actuator in order to provide a compact and symmetrical arrangement. | 01-13-2011 |
20080230128 | Back Pressure Regulator - A paint circulating system back pressure regulator comprises a flow passage for paint, at least part of which is disposed between a fixed structure and a moveable surface which is moveable to vary the width of the flow passage so as to regulate a pressure of paint upstream of the regulator. The regulator is also provided with a chamber having an opening for communicating with a supply of a pressurised fluid for controlling operation of the regulator. | 09-25-2008 |