Appeal No. 2004-1109
Application No. 09/754,686
According to appellants, the invention is directed to a
brake pedal emulator system including a master cylinder and
associated fluid reservoir, in integral association with both a
gas-filled bellows emulator and a spring emulator (Brief, pages
3-4). Appellants state that the claims on appeal “should be
considered as one group” (Brief, page 4). We construe this
statement as meaning that the claims stand or fall together.
Therefore we select independent claim 1 from the grouping and
decide the ground of rejection in this appeal on the basis of
this claim alone. See 37 CFR § 1.192(c)(7)(2000).
Representative independent claim 1 is reproduced below:
1. A brake-by-wire pedal feel emulator system comprising:
a master cylinder;
a first piston slidably positioned in the master cylinder;
a second piston slidably positioned in the master cylinder;
a reservoir carried near the master cylinder;
a first seal operably attached to the first piston wherein a
force applied to said first piston positions the first seal
member to isolate the reservoir from the master cylinder;
a second seal operably attached to the second piston wherein
a force applied to said second piston positions the second seal
member to isolate the reservoir from the master cylinder;
a gas-filled bellows emulator integral to and carried near
the master cylinder wherein isolation of the reservoir from said
master cylinder diverts fluid pressure into said bellows
emulator; and
2
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