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. 23, 2015
Filed:
Oct. 18, 2013
Applicant:
Robert E. Marsh, Kansas City, MO (US);
Inventor:
Robert E. Marsh, Kansas City, MO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 11/00 (2006.01); A61F 11/08 (2006.01);
U.S. Cl.
CPC ...
A61F 11/08 (2013.01); A61F 2011/085 (2013.01);
Abstract
The present invention is a switchable hearing protection ear plug. In one position, the ear plug provides substantial sound attenuation and hearing protection. In the second position, an opening in the ear plug permits sounds to enter the ear of the user relatively unobstructed. A deformable barrier in an interior chamber of the ear plug controls the passage of sound through the ear plug.