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. 09, 1982
Filed:
Aug. 08, 1979
Applicant:
Inventor:
Roland Westerdal, Great Falls, VA (US);
Assignee:
Bilsom AB, Billesholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128152 ; 12820118 ; D24 / ; 181135 ; 179 / ; 1791 / ; 1791 / ;
Abstract
An earplug comprising a stem portion and a front portion mounted on the stem portion. The front portion is conically shaped and disposed such that the inner surface of the front portion is spaced from the stem portion. At least one spacing member may be provided which is adapted to space the interior surface of the front portion from the stem portion. The earplug may further comprise an axial bore therein adapted to receive a cord such that two of the earplugs may be connected by the cord so as to form a set.