4,574,912

43.66.Ts EAR MUFF HEARING AID

Gary E. Fuss and George Spector, New York, NY 11 March 1986 (Class 181/129); filed 14 November 1984

The patent shows two ear "extenders" resembling cupped hands that are supported by a headband. A pad of soft material is provided where the devices rest against the head. The device is somewhat reminiscent of "ear

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•6 (,•6 •8 16•6 '18 scoops" dating back to 1845. About the same gain as obtained by cupping the hands over the ears--perhaps 5-15 dB over a limited frequency range• might be expected.--SFL

4,575,586

43.66.Ts APPARATUS FOR USE IN THE ADJUSTMENT OF THE SECONDARY ADJUSTMENT MEANS OF A HEARING AID

Christian Topholm, assignor to Topholm & Westermann APS 11 March 1986 (Class 179/107 H); filed in Denmark 5 November 1982

The purpose is to provide remote means for adjusting various controls on the hearing aid, such as frequency response, output, or compression controls, while the aid remains in place at the user's ear. To accomplish this, a flexible cable containing perhaps three longitudinally movable wires is provided. At the hearing aid end, there is a block that plugs on to the hearing aid case, with terminations on each wire engaging the appropriate sliding control. The other end of the cable goes to a control desk, with finger knobs provided for each wire. From the desk, the controls can be adjusted by the listener or fitter for optimum performance while speech or other material is being presented. After adjustment, the cable is removed from the hearing aid and a cover is placed over the control activating projections.--SFL

4,579,112

43.66.Vt FOAM EARPLUG

Robert T. Scott, Santa Cruz, CA 1 April 1986 (Class 128/151); filed 17 May 1984

The earplug described is made of a closed cell elas-tomeric foam having a tear drop ellipsoidal horizontal section. The plug does not enter the ear

4,584,437

43.66.Ts HEARING AIDS OF THE TYPE INTENDED TO BE FITTED IN THE EXTERNAL AUDITORY MEATUS OF THE USER

Vittorio Giannetti, Rome, Italy 22 April 1986 (Class 179/107 E); filed in Italy 27 January 1982

The patent shows an in-the-canal hearing aid with a battery compart-

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PT

116A 114

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ment door arranged so that when opened it can be used as a handle to assist in the insertion or removal of the heating aid.--SFL

canal but closes the entrance to it. To insert, it is slightiy compressed and placed in a blocking position behind the tragus.mSFL

4,582,053

43.66.Vt ACOUSTIC EAR PLUG

Garnet J. E. Wilson, San Diego, CA 15 April 1986 (Class 128/152); filed 6 January 1984

An ear plug with an evacuated interior volume is shown. The ear plug consists of two portions. The inner one is of relatively long cylindrical shape that fits into the ear canal. A pliable inner wall, adequately stiff to prevent collapse when evacuated, is covered externally with a layer of elastomeric foam that conforms to the inside wall of the ear canal. A tip projects

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IO 22'

outward to facilitate insertion. A second portion also has an evacuated central volume and two layers of material similar to those in the first por- tion. The second portion has a larger diameter and a dome shaped outer surface. It apparently is intended to fit into the concha, although this is not clearly stated.--SFL

1282 J. Acaust. Sac. Am. 80(4), Oct. 1986; 0001-4966/86/101282-01500.80; ¸ 1986 Acaust. Sac. Am.; Patent Reviews 1282

Redistribution subject to ASA license or copyright; see http://acousticalsociety.org/content/terms. Download to IP: 131.230.73.202 On: Sat, 20 Dec 2014 11:59:59