The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1995
Filed:
Jan. 25, 1994
Gary R Dias, Folsom, CA (US);
Richard Montgomery, Folsom, CA (US);
California Prison Industry Authority, Folsom, CA (US);
Abstract
A movable, prefabricated wall panel having a rigid rectangular frame, a septum core disposed within the region bounded and confined by the frame, and adjacent layers of fibrous sound absorbing material is disclosed herein. The septum core is formed from a central layer of honeycombed-shaped paper sandwiched between two steel skins, and is fixedly confined to the center of the interior frame perimeter by elongated channels of the perimeter frame. The combined shape forms a central cavity on opposing sides of the septum core allowing relatively thick inner layers of sound absorbing fibrous material, preferably fiberglass, to be placed within the panel adjacent to each steel skin. Outer layers of sound absorbing fibrous material are placed adjacent to the inner layers, and the outer layers are covered with fabric or similar material.