Patent · US Expired

Frictional vibrator damper

US5080204A · kind A · utility

58Cited by

6References

12Claims

0Family size

Assignee

SUSPA GMBH · DE

Inventors

Hans J. Bauer · Altdorf, DE
Hans-Peter Bauer · Altdorf, DE
Dieter Mayer · Ludwigshafen, DE
Ludwig Stadelmann · Altdorf, DE

Key dates

Filing date	Feb 11, 1991
Grant date	Jan 14, 1992
Priority date	—
Expiry date	Feb 11, 2011

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F7/09
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A frictional vibration damper, in particular for washing machines with an oscillatory support of a washer unit has an approximately tube-shaped housing and a tappet displaceable in it. An articulation element is provided at the outer end of each the housing and the tappet. Further, a friction piston bearing with a friction coating on the internal wall of the housing is formed on the tappet, which friction piston is extendable by means of a linearly operating servomotor. In order to achieve high safety in operation at little expenditure, the servomotor is arranged in the tappet. It is formed by an electrically heatable thermoactuator element having a housing with a piston which changes its position relative to the housing upon heating. The piston of the servomotor directly bears against an expansion member serving to expand the friction piston.

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