Shaft contact device
AssigneeWaynedd Enterprises Ltd
InventorsWayne Cooper, Edward Lau
Life of this patent
Estimating the term…
Abstract
The invention relates to a shaft contact device 1 to make an electrical connection between a shaft and an earth point. Device 1 has a bracket 10 for connection to a point spaced from the rotating shaft, base member 20 mounted on the bracket 10, a head member 30 having at least one electrically conductive brush 34A, 34B to engage the shaft. A pair of arms 40A, 40B each has a first end connected to spaced pivot points on the base member and a second end connected to spaced pivot points on the head member. A spring means 50 biases the head towards the shaft to engage the brush on the shaft. In use the base member, head member and spaced arms forming a parallelogram arm whereby the head member brushes contact the shaft at a constant angle as the brushes are worn.
Claims22
A shaft contact device to make an electrical connection between a rotating shaft and an earth point comprising:
- a bracket for connection to a point spaced from the rotating shaft;
- a base member mounted on the bracket;
- a head member having at least one electrically conductive brush to engage the rotating shaft;
- a pair of arms each having a first end connected to spaced pivot points on the base member and a second end connected to spaced pivot points on the head member, and
- a spring means to bias the head towards the rotating shaft to engage the at least one electrically conductive brush on the rotating shaft, in use the base member, head member and spaced arms forming a parallelogram arm whereby the at least one electrically conductive brush of the head member contacts the rotating shaft at a constant angle as the at least one electrically conductive brush is worn.
Dependencies are inferred from the claim text.