Patent · US Expired

Acceleration sensor

US4638130A · kind A · utility

8Cited by

8References

5Claims

0Family size

Assignee

Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung · DE

Inventors

Peter Grossler · Hochstädt, DE
Norbert Nissl · Aresing, DE

Key dates

Filing date	Oct 18, 1984
Grant date	Jan 20, 1987
Priority date	—
Expiry date	Oct 18, 2004

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF42C19/06
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An acceleration sensor comprises a housing formed with a hollow cavity deing a sensing direction. An acceleration sensing conductive mass is releasably mounted in the cavity. The mass is released by a cutting member which severs the releasable mounting of the acceleration sensing mass. A force applying assembly is activated to cause movement of the cutting member. Switch electrodes are arranged at the lower end of the housing cavity. The mass falls through a predetermined distance and bridges the switch electrodes. The sensing mass, when severed, may move in incremental steps due to the use of a two-stage releasing assembly. Sensing transducers may be located along the falling path of the acceleration sensing conductive mass.

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