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:
Nov. 27, 1979
Filed:
Nov. 16, 1976
Applicant:
Inventor:
Leslie S Wirt, Newhall, CA (US);
Assignee:
Lockheed Corporation, Burbank, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K / ; B64F / ; E10F / ;
U.S. Cl.
CPC ...
181210 ; 181284 ; 181295 ; 256 131 ; 256 19 ; 256 24 ;
Abstract
A noise barrier wall having a transition area in the region of at least one unbounded edge and which employs controlled diffraction of sound to enhance the sound reducing properties thereacross. The transition area of the noise barrier is provided with either a row of absorptive shaped splitter panels, or a row of pickets, or other means of controlled transparency which provide acoustical shadowing equal to or greater than that of a solid wall for the frequency regions of interest.