Patent ID: 6513621
Filing Date: 2003-02-04
Classification: H04R

Abstract:
A moldable and contourable elastomeric ear tip, comprising a sealed airtight chamber, a first section comprising an interface mechanism for attachment to a sound transmitting device, and the center auditory passage whereby such ear tip is manufactured by:(a) the process of injection molding to form a single piece of elastomeric material encompassing a top section and a bottom section; the top section, which forms the outer wall, has less relative thickness than the bottom section, which forms the interior wall; the outer wall of the top section of ear tip is formed having a beveled edge; the outer wall of the bottom section is formed with an indention; the inside of the bottom section houses the first section having a means for attaching the ear tip to a sound transmitting device; there is a horizontal cavity being of a constant diameter throughout both the top and bottom sections; (b) the top section is folded over itself to the point at which the center sound passage ends; the top section is folded over itself to the point where the greater thickness in the ear tip mold meets the minimal thickness of the top section; so that the beveled edge on the top section mates with the indention on the bottom section, creating a chamber in the top section; (c) a needle is first filled with a gelatin, whereby the needle tip is then inserted along the open seam created when the top section is flipped over itself to the bottom section into said created chamber whereby contents of said needle are disposed into said chamber until all air has been removed therefrom, said needle tip is then removed from ear tip, (d) the chamber is then permanently sealed using techniques whereby said sealed chamber is airtight and whereby said sealing creates a seamless interface between the top section and the bottom section, a first section comprising the interface mechanism, and a center auditory passage; the center auditory passage being formed by the inner wall of the sealed chamber having a greater thickness compared to that of the outer wall, the relative difference in thickness preventing the airtight chamber from obstructing the auditory passage, achieving minimum variation in the diameter of the center auditory passage.