Patent ID: 9453562
Filing Date: 2016-09-27
CPC Classification: F16D,F16H,F16K,Y10T

Claim Text:
1. A valve actuator torque limiter including: a moveable shaft moveable two ways in an axial direction and, rotatable to cause rotation of a valve actuator drive shaft; a brake disc mounted on the moveable shaft; a first friction device located to a first side of the brake disc and including an outer gear wheel; a second friction device located to a second side of the brake disc; wherein contact between the brake disc and the first or the second friction device stops a motor rotating the moveable shaft; a casing housing at least the brake disc, the first friction device and the second friction device, and an adjusting arrangement for adjusting a position of the first friction device relative to the brake disc, wherein the adjusting arrangement includes a worm drive gear rotatable from outside the casing, the worm drive gear engaged with the outer gear wheel to rotate the first friction device.