Actuation and valve mechanism
AssigneeRubicon Research Pty Ltd.
InventorDavid John Aughton
Life of this patent
Estimating the term…
Abstract
The invention provides a cable drive device (10) including a linear drive member (12), and a cable drum (14) attached to a support bracket (30, 32) adapted to be affixed to a surface. The cable drum (14) has an axle (26) supported by the support bracket (30, 32) to allow rotation of the cable drum (14). The cable drum (14) has a cable (42) affixed at either end of said linear drive member (12) and tautly wrapped around the cable drum (14). The cable drum (14) is located between the ends of the linear drive member (12) to, in use, allow the linear drive member (12) to be guided through the bracket (30, 32) to move the linear drive member (12) longitudinally when the axle (26) is rotated.
Claims17
A fluid control barrier for a pipe comprising:
- a bi-foldable barrier member for controlling movement of fluid along the pipe and having a pair of plates with a hinge along their straight edges to allow for opening and closing of said fluid control barrier;
- and
- an actuation mechanism comprising
- a threaded screw member having a first thread and a second thread;
- a pair of threaded journals;
- a first pair of struts and a second pair of struts;
- the pair of plates comprising a first plate and a second plate;
- the first thread opposing the second thread;
- the pair of threaded journals comprising
- a first threaded journal threadingly engaged with the first thread and constrained from rotating;
- and
- a second threaded journal threadingly engaged with the second thread and constrained from rotating;
- the first pair of struts connecting the threaded journals to the first plate, and the second pair of struts connecting the threaded journals to the second plate, such that rotating the threaded screw member opens and closes the bi-foldable barrier member.
An arrangement, for a pipe, comprising:
- a flow meter;
- and
- a fluid control barrier comprising
- a bi-foldable barrier member for controlling movement of fluid along the pipe and having a pair of plates with a hinge along their straight edges to allow for opening and closing of said fluid control barrier;
- and
- an actuation mechanism comprising
- a threaded screw member having a first thread and a second thread;
- a pair of threaded journals;
- a first pair of struts and a second pair of struts;
- the pair of plates comprising a first plate and a second plate;
- the first thread opposing the second thread;
- the pair of threaded journals comprising
- a first threaded journal threadingly engaged with the first thread and constrained from rotating;
- and
- a second threaded journal threadingly engaged with the second thread and constrained from rotating;
- the first pair of struts connecting the threaded journals to the first plate, and the second pair of struts connecting the threaded journals to the second plate, such that rotating the threaded screw member opens and closes the bi-foldable barrier member;
- the flow meter being arranged to be immediately upstream of the fluid control barrier.
A method of irrigation including utilizing a fluid control barrier to control the flow of water;
- the fluid control barrier comprising
- a bi-foldable barrier member for controlling movement of fluid along the pipe and having a pair of plates with a hinge along their straight edges to allow for opening and closing of said fluid control barrier;
- and
- an actuation mechanism comprising
- a threaded screw member having a first thread and a second thread;
- a pair of threaded journals;
- a first pair of struts and a second pair of struts;
- the pair of plates comprising a first plate and a second plate;
- the first thread opposing the second thread;
- the pair of threaded journals comprising
- a first threaded journal threadingly engaged with the first thread and constrained from rotating;
- and
- a second threaded journal threadingly engaged with the second thread and constrained from rotating;
- the first pair of struts connecting the threaded journals to the first plate, and the second pair of struts connecting the threaded journals to the second plate, such that rotating the threaded screw member opens and closes the bi-foldable barrier member.
Dependencies are inferred from the claim text.