Brakes – Frictional vibration damper
Patent
1991-09-20
1994-03-22
Oberleitner, Robert J.
Brakes
Frictional vibration damper
188129, F16F 1100
Patent
active
052955648
ABSTRACT:
A frictional damper, in particular for washing machines with spinning action, comprises 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 a friction piston. The friction piston has at least one friction coating made of an elastically resilient material and is provided with a grease storage chamber. In order to prevent a decrease of damping because of change from lubricated to dry friction and in order not to disturb the friction proportions between friction coating and inner wall of the housing, the grease storage chamber is provided within the friction piston and is connected by way of at least one grease channel with a grease chamber which is formed at the outer circumference of the friction piston and which is open towards the inner wall of the housing.
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patent: 4552344 (1985-11-01), Johnson
patent: 4729458 (1988-03-01), Bauer et al.
patent: 4946008 (1990-08-01), Bauer et al.
patent: 5085297 (1992-02-01), Bauer et al.
Oberleitner Robert J.
Suspa Compart AG
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