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. 05, 2001
Filed:
Aug. 29, 1994
Howard S. Leight, Santa Monica, CA (US);
Bacou USA Safety, Inc., San Diego, CA (US);
Abstract
An earplug is described, of the type which has an elongated stem (,, FIG.,) and a plurality of hollow cone elements (,) each centered on the stem and spaced along a forward portion thereon, which has enhanced noise-blocking ability and which is easier to install and remove. Each element is in the shape of a hollow cone, and has a peripheral portion (,) that extends at an included angle (C) that is preferably about 60°, which results in wider area sealing of the peripheral portion of the cone elements against the ear canal of the wearer. The considerable included angle of the cone element peripheral portions, also facilitates the folding over of the peripheral portion of an element into a reverse configuration (,C, FIG.,) during pullout of the earplug from the ear canal, to facilitate such pullout.