Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Reexamination Certificate
2008-10-07
2010-06-01
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Specified casing or housing
C381S312000, C381S322000
Reexamination Certificate
active
07729502
ABSTRACT:
An improved device for heating hearing aid microtubes is presented, the invention comprised of inexpensive electrical parts and a simple plastic base. The device possesses a heater flue that is shaped to concentrate the heat from the heating element along a short length of the hearing aid audio tube to be formed as well as a metal reflector to increase the efficiency of the heater element. The device has nonskid feet and air holes to improve the cooling of the device.
REFERENCES:
patent: 7027608 (2006-04-01), Fretz et al.
patent: 2006/0023909 (2006-02-01), Grafenberg
patent: 2008/0111283 (2008-05-01), Espersen et al.
patent: 2009/0121386 (2009-05-01), Ipsen et al.
Eason Matthew
Kuntz Curtis
Webb Steven W.
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