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. 28, 2011
Filed:
Feb. 22, 2007
Applicant:
John Allen Jenkins, Jr., San Diego, CA (US);
Inventor:
John Allen Jenkins, Jr., San Diego, CA (US);
Assignee:
Sperian Hearing Protection, LLC, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An earplug has a single very long main flange with a maximum diameter that is at least 80% of the length of the main flange, and at least 55% of the entire length of the earplug except for the stem. This allows the outside of the long flange to extend at a very small angle to the axial direction, and apply a constant force against the walls of the ear canal, for good and comfortable sealing to the ear canal.