Ear plug assembly for hearing aid
First Claim
1. An improved ear plug assembly for use with a hearing aid comprising an electronic package which includes a receiver, an ear plug assembly and a tube having a first end which connects to the receiver and a second end which connects to the ear plug assembly, said improved ear plug assembly comprising:
- a flexible hollow generally conical shell member having an interior surface and an exterior surface and a large open end and a small open end;
means for securing said second end of said tube to the interior surface of the small open end of said shell member;
a spring, having an inner diameter greater than an outside diameter of said tube, mounted upon and circumscribing the tube and having a first end proximate said means for securing; and
slidable annular nut means mounted upon said tube for contacting a second end of said spring.
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Accused Products
Abstract
An ear plug assembly (28) for behind the ear hearing aids. The ear plug assembly (28) comprises a hollow substantially conical shell (32) having two annular ridges (42, 44) in its smaller open end (34). A hollow tube (26) connects the electronics package (20) to the smaller end (34) of the shell (32) and conveys the sound into the ear canal. One end of the tube (26) has a fitting or endpiece (50) in it with a flange (52) that is seated between the ridges thus securing the tube (26) in the shell. A slidable nut (38) and a spring (40) are mounted on the tube (26) such that the nut can be slid toward the endpiece (50) thus compressing the spring (40) and providing rigidity. The compressed spring (40) transmits a force applied to the nut (38) to act upon the endpiece (50) and the ridge (44) of the shell (32). This force tends to stretch the shell (32), reducing its diameter so that easier and deeper insertion into the ear canal can be achieved. When the force is removed from the nut (38), the shell (32) tends to return to its noraml size i.e. its larger diameter, and hence achieves a snug and comfortable fit with the interior of the ear canal of the wearer.
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Citations
6 Claims
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1. An improved ear plug assembly for use with a hearing aid comprising an electronic package which includes a receiver, an ear plug assembly and a tube having a first end which connects to the receiver and a second end which connects to the ear plug assembly, said improved ear plug assembly comprising:
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a flexible hollow generally conical shell member having an interior surface and an exterior surface and a large open end and a small open end; means for securing said second end of said tube to the interior surface of the small open end of said shell member; a spring, having an inner diameter greater than an outside diameter of said tube, mounted upon and circumscribing the tube and having a first end proximate said means for securing; and slidable annular nut means mounted upon said tube for contacting a second end of said spring. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification