Patent ID: 9321605
Filing Date: 2016-04-26
CPC Classification: B65H,F16D

Claim Text:
1. A web tension brake assembly which, during operation, always operates with continuous slip so as to reduce resonant vibration of the web tension brake assembly, the web tension brake assembly comprising: a pair of brake disks mounted on a common brake shaft and extending parallel to and being spaced apart from one another; at least a first pair of anti-squeal friction pad assemblies being located between the pair of brake disks; each anti-squeal friction pad assembly, of the first pair of anti-squeal friction pad assemblies, comprising a friction pad, a first back plate adhered to the friction pad, an isolation layer, consisting of silicon rubber, adhered to the first back plate and a second back plate adhered to the silicon rubber isolation layer; at least a first pneumatically actuated piston being supported by a support plate and located between both the first pair of anti-squeal friction pad assemblies and the pair of brake disks; the first pneumatically actuated piston being configured to force each anti-squeal friction pad assembly, of the first pair of anti-squeal friction pad assemblies, away from one another into frictional engagement with a respective one of the pair of brake disks; both of the first and the second back plates having a pair of spaced apart openings for securing the respective anti-squeal friction pad assembly to the support plate by a respective pair of guide studs; each respective pair of guide studs being fixed to one opposed side of the support plate and extending therefrom for engagement with a respective one of the pair of openings formed in the first and the second back plates of the respective anti-squeal friction pad assembly, and each respective guide stud extending through the respective first back plate, the respective silicon rubber isolation layer and the respective second back plate of the respective anti-squeal friction pad assembly for securing the respective anti-squeal friction pad assembly to the support late while facilitating movement of the respective anti-squeal friction pad assembly, along the respective pair of guide studs, into frictionally engage with the respective brake disk; and the first pair of anti-squeal friction pad assemblies being configured, during continuous braking, to disrupt an overall symmetry and reduce acoustic resonant vibration and production of noise.