Ultrasound transducer with a dumbbell-shaped chamber

Details Ultrasound transducer with a dumbbell-shaped chamber Ultrasound transducer with a dumbbell-shaped chamber

2011-07-19

2011-07-19

Rosenau, Derek J (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S334000, C310S348000

Reexamination Certificate

active

07982366

ABSTRACT:
An ultrasound transducer has a cup-shaped casing. The cup-shaped casing has a sidewall. A cross section of an inner surface of the sidewall being perpendicular to a central axis of the ultrasound transducer substantially shows a dumbbell-shaped contour. The dumbbell-shaped contour has a pair of opposite straight-line sections being substantially parallel to a longitudinal axis of the dumbbell-shaped contour and a pair of opposite arc sections being located respectively at two ends of the longitudinal axis of the dumbbell-shaped contour and respectively forming two enlarged portions of the dumbbell-shaped contour. Two ends of each arc section of the dumbbell-shaped contour respectively joint the straight-line sections through two curve sections and each curve section is connected to one end of the arc section and one straight-line section. At least one enlarged area of a dumbbell-shaped surface of an inside bottom surface has a recessed portion.

REFERENCES:
patent: 2003/0235115 (2003-12-01), Porzio
patent: 19917862 (1999-11-01), None
patent: 1283516 (2003-02-01), None
patent: 2001013239 (2001-01-01), None
patent: 20072402611 (2007-09-01), None
Machine Translation of JP2001-013239 generated by the website of the Japanese Patent Office.
European Search Report dated Jul. 14, 2009, Appln. No. EP 09 15 3254.

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