Importance

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Abstract

The braking system includes a housing, and a friction brake disposed in the housing and operationally connected to a member-to-be-braked. A biasing piston, for engaging the friction brake, is disposed in the housing, and a control piston is also disposed in the housing. The control piston and the housing define a pressure chamber for receiving a pressure medium which biases the control piston away from the friction brake. A first resilient member is disposed between the control piston and the housing to bias the control piston towards the friction brake. A second resilient member is disposed between the control piston and the biasing piston for transferring force applied to the control piston by the first resilient member to the biasing piston so as to bias the biasing piston towards the friction brake. The fiction brake includes brake lamellae operationally and longitudinally displaceably connected to the housing. Pins are connected to the housing, and each pin has an annular shoulder disposed in a different longitudinal position from the annular shoulders for other pins. Each annular shoulder restricts longitudinal movement of at least one of the brake lamellae. The friction brake further includes brake disks operationally and longitudinally displaceably connected to a member-to-be-braked, and each brake disk is disposed between at least two of the brake lamellae.

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First Claim