Appeal 2007-0359
Application 10/485,356
1 10. A method for degassing at least a portion of a hydraulic vehicle
2 brake system of the type having an external-force service brake system and a
3 muscle-powered auxiliary brake system, in which the external-force service
4 brake system has a hydraulic pump (14) whose intake side is connected to a
5 brake fluid reservoir (24) and to whose pressure side is connected to a
6 hydraulic reservoir (18) and also to at least one wheel brake cylinder (30)
7 with a brake pressure buildup valve (28) interposed, and the wheel brake
8 cylinder is connected to the brake fluid reservoir (24) via brake pressure
9 reduction valve (32), and the muscle-powered auxiliary brake system has a
10 master cylinder which is actuatable by muscle power, which master cylinder
11 is connected to the brake fluid reservoir (24) and also to the wheel brake
12 cylinder with a disconnection valve (52) interposed, the method for
13 degassing at least a portion of the vehicle brake system (10), comprising,
14 opening the brake pressure buildup valve (28) and the disconnection valve
15 (52), and closing the brake pressure reduction valve (32), wherein the
16 hydraulic reservoir (18) is evacuated for the degassing.
17
18 18. A master cylinder (50) for degassing at least a portion of a
19 hydraulic vehicle brake system by the method of claim 10, the master
20 cylinder including a connection (60) associated with the wheel brake
21 cylinder, which connection discharges approximately at a tangent into a
22 cylinder bore (64) of the master cylinder (50).
23
24 THE REFERENCE
25 Baechle US 6,193,031 B1 Feb. 27, 2001
26 THE REJECTIONS
27 Claims 10-12 and 16-18 stand rejected under 35 U.S.C. § 102(b) as
28 anticipated by or, in the alternative, under 35 U.S.C. § 103 as obvious over
29 Baechle.
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