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:
Feb. 12, 2002
Filed:
May. 09, 2000
Applicant:
Inventor:
Howard S. Leight, Malibu, CA (US);
Assignee:
Bacou USA Safety, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 7/02 ; A61F 1/100 ;
U.S. Cl.
CPC ...
A61B 7/02 ; A61F 1/100 ;
Abstract
An earplug has a front portion ( ) for entering the ear canal and a rear portion ( ) that serves as a handle, with a marking ( ) near their intersection to indicate to a supervisor whether or not the earplug has been fully installed. The marking is preferably the result of the front and rear portions being formed of material of different colors. Thus, if a supervisor observes a location where a color change occurs, at a significant distance out of the worker's ear canal, the supervisor is informed of a possible insufficient depth of earplug installation.