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. 30, 2004
Filed:
Apr. 09, 2001
Applicant:
Inventor:
Brian Myers, Indianapolis, IN (US);
Assignee:
Cabot Safety Intermediate Corporation, Southbridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 2/500 ;
U.S. Cl.
CPC ...
H04R 2/500 ;
Abstract
An acoustic earmuff device is provided comprising a rigid cup, including inner and outer surfaces, a sound channel means disposed through said cup shaped portion, and a plate means operatively associated with said sound channel means, such that when the plate means is in a first orientation, sound attenuation through the plate means is greater than when the plate means is in a second orientation.