Kurt J Goodfriend

US Patent:

7908810, Mar 22, 2011

Filed:

Jun 30, 2005

Appl. No.:

11/170738

Inventors:

Kurt Goodfriend - Oak Park IL, US
David Bruce McDonald - Glenview IL, US
Dennis A. Socha - Buffalo Grove IL, US
John Ellicson - McHenry IL, US
Francis H. Laux - Wheeling IL, US
Russell A. Dombeck - Salem WI, US
Thomas F. Sheppard - Crystal Lake IL, US

Assignee:

United States Gypsum Company - Chicago IL

International Classification:

E04F 15/02
E04F 15/022
E04F 15/10

US Classification:

52450, 52480, 52145, 522365, 5274505

Abstract:

The present invention relates to a sound rated floor system for inhibiting sound transmission between floors. The system includes a corrugated steel deck; a first layer of cementitious material or board or sheet applied over the corrugated steel deck; a sound insulation mat or board applied over the first layer; a second layer of cementitious material applied over the sound insulation mat or board. The floor system has an IIC rating of at least 25 and the corrugated steel deck provides at least 50 percent of the ultimate load carrying capacity under static and impact loading of the floor system with a floor deflection of at most 1/360 of the floor span.

US Patent:

20070289238, Dec 20, 2007

Filed:

Jun 19, 2006

Appl. No.:

11/455365

Inventors:

Stephen W. Payne - Wildwood IL, US
Kurt J. Goodfriend - Oak Park IL, US

International Classification:

E04B 5/00

US Classification:

52408

Abstract:

An acoustic isolation medium configured for placement between a subfloor and a finished floor with a poured underlayment, includes a first layer being a sound reduction mat disposed upon the subfloor, a second layer placed upon the first layer and being one of a sheet of fibrous material and a web of hi-density limp mass material with a high internal damping coefficient, and a third layer placed upon the second layer and being the other of a sheet of the fibrous material and a web of the hi-density limp mass material.