Patent · US Expired

Ultrasonic sensor

US6792810B2 · kind B2 · utility

7Cited by

4References

5Claims

0Family size

Assignee

VALEO SCHALTER UND SENSOREN GMBH · DE

Inventors

Uwe Kupfernagel · Bietigheim-Bissingen, DE
Heinrich Gotzig · Heilbronn, DE

Key dates

Filing date	Nov 4, 2002
Grant date	Sep 21, 2004
Priority date	—
Expiry date	Nov 4, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG10K9/122
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention concerns an ultrasonic sensor with a pot-shaped diaphragm having an oscillatory diaphragm bottom and a diaphragm wall which surrounds at least sections of the diaphragm bottom. The invention is characterized in that at least sections of the diaphragm wall have a foam-like structure.

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