Patents by Inventor Kenneth T. Ritzema

Kenneth T. Ritzema has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Acoustical barrier with ribbed decoupler
    Patent number: 6024190
    Abstract: An acoustical barrier for blocking the transfer of sound through a barrier wall. The acoustical barrier comprises a sound absorbing layer and a decoupling layer mounted to the sound absorbing layer and spacing the sound absorbing layer from the barrier wall. The decoupling layer has a constructoin defining multiple voids to reduce the quantity of material used to construct the decoupling layer and to reduce the surface area of the decoupling layer contracting the barrier wall. Preferably, the decoupling layer has multiple protrusions such as ribs between which are interstitial spaces defining the voids.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: February 15, 2000
    Assignee: Cascade Engineering, Inc.
    Inventor: Kenneth T. Ritzema