Patent · US Expired

Ultrasonic transducer

US6465935B1 · kind B1 · utility

6Cited by

12References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dietmar Wannke · Reutlingen, DE
Dieter Karr · Tiefenbronn, DE
Meike Fehse · Rutesheim, DE
Martin Noll · Nentershausen, DE
Peter Rapps · Karlsruhe, DE
Waldemar Ernst · Lambach, DE
Dirk Schmid · Simmozheim, DE

Key dates

Filing date	Dec 29, 1999
Grant date	Oct 15, 2002
Priority date	—
Expiry date	Dec 29, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG01S7/521
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

An ultrasonic transducer having a pot-like casing has an outer bottom face which is designed in part as a vibrating diaphragm. A stabilizing ring is arranged on the outside of the wall of the pot-like casing, imparting a greater rigidity to the casing and limiting the ultrasonic vibration essentially to the bottom of the pot as a vibrating diaphragm. The propagation and reception beams of the ultrasonic waves can be shaped further by an additional arrangement of a sound directing device in the area of the vibrating diaphragm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.