Frictional damper

Details Frictional damper Frictional damper

1989-09-27

1990-08-07

Reger, Duane A.

Brakes

Operators

Automatic

188381, 18832211, F16F 708

Patent

active

049460080

ABSTRACT:
A frictional damper, in particular for washing machines with spinning action, comprising a circular cylindrical housing and a tappet which is coaxially displaceable inside the housing and extends out of it with one end, the other end being provided with an approximately cylindrical friction piston. The friction piston has at least one friction coating made of an elastically resilient material and is provided with a grease chamber open towards the inner wall of the housing. In order to prevent a loss of damping because of a change from lubricated to dry friction, an extension tube is formed on the end of the tappet which is inside the housing which, together with an adjoining bracing flange and the inner wall of the housing, defines a grease collecting chamber.

REFERENCES:
patent: 3382955 (1968-05-01), Deyerling
patent: 4729458 (1988-03-01), Bauer et al.
patent: 4765444 (1988-08-01), Bauer et al.

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