Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-09-11
2007-09-11
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S331000, C128S126100, C417S413200
Reexamination Certificate
active
10501224
ABSTRACT:
A measuring device for measuring in an ear canal includes a probe for insertion into an ear canal having an opening for letting air in to and out of the ear canal, and a pump for providing a pressure above a surrounding atmospheric pressure or below the surrounding atmospheric pressure, the pump including a housing with openings for inlet and/or outlet, where within the housing a piston element having piezo electric properties is disposed, one opening in the pump being operatively connected to the opening in the probe.
REFERENCES:
patent: 4011474 (1977-03-01), O'Neill
patent: 4175587 (1979-11-01), Chadwick et al.
patent: 4231287 (1980-11-01), Smiley
patent: 4237905 (1980-12-01), Keller et al.
patent: 4688582 (1987-08-01), Heller et al.
patent: 5063946 (1991-11-01), Wada
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patent: 6071088 (2000-06-01), Bishop et al.
patent: 6164933 (2000-12-01), Tani et al.
patent: 6869275 (2005-03-01), Dante et al.
patent: 7011507 (2006-03-01), Seto et al.
patent: 0379719 (1990-08-01), None
patent: 8707218 (1987-12-01), None
English Abstract of SU901659, Jan. 1982, of RYU Bansevichy et al. entitled “Vibratory Pump”.
Budd Mark
Dykema Gossett PLLC
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