Pre Finish Metals, Incorporated

Material Sciences Corporation, Engineered Materials and Solutions Group, Inc.

Gregory Pardus

Ahid D Nashif

Edward J Vydra

Michael R Loth

Scott R Dobrusky

Kevin W Griffey

Edwin F Aquino

A vibration damping laminate includes a magnetic layer and an uncoated constraining layer joined by a viscoelastic layer, wherein the modulus of elasticity of the viscoelastic layer is substantially less than that of either of the other two layers. The laminate is magnetically attached to an associated source of vibrations by the magnetic layer, and substantially all vibrational damping is effected by the viscoelastic layer.

Magnetic damping

A disk brake pad assembly includes a rigid metal backing plate, a brake friction lining pad and a damping structure including a viscoelastic material disposed between the backing plate and the friction lining pad and fixed to each. In one embodiment the damping structure is a perforated metal plate having perforations filled with viscoelastic damping material. The damping plate may be provided along its opposite sides with constraining layers. Such a perforated damping structure may be disposed on either side of the backing plate.

Noise damped brake pad assembly

Growing community of inventors

Darien, IL, United States of America

Gregory Pardus