Device for drawing off/refilling and bleeding brake fluid

Details Device for drawing off/refilling and bleeding brake fluid Device for drawing off/refilling and bleeding brake fluid

2007-10-16

2007-10-16

Maust, Timothy L. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Combined

C141S059000, C141S065000, C188S352000

Reexamination Certificate

active

10533379

ABSTRACT:
Device for drawing off hydraulic fluid from a hydraulic brake circuit of a vehicle/refilling the circuit with hydraulic fluid, and bleeding air from hydraulic fluid in the circuit. A pneumatic circuit having line elements from a compressed air connection to a compressed air-driven hydraulic pump, which is coupled into a hydraulic circuit to generate excess pressure and vacuum. A first brake fluid connection for the connection to a brake fluid reservoir or a bleed nipple on any vehicle wheel brake; a second brake fluid connection for drawing off old brake fluid from the brake circuit via the hydraulic circuit; and a third brake fluid connection for supplying fresh brake fluid to the vehicle brake circuit via the hydraulic circuit. A two-way valve, which opens a connection for extracting old brake fluid from the brake fluid reservoir, and opens a connection for refilling the brake fluid reservoir with fresh brake fluid.

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patent: WO-01/25090 (2001-04-01), None

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