Chairs and seats – Movable bottom – Bottom and back movable as a unit
Reexamination Certificate
2011-03-22
2011-03-22
McPartlin, Sarah B (Department: 3636)
Chairs and seats
Movable bottom
Bottom and back movable as a unit
C297S344180, C297S344190
Reexamination Certificate
active
07909404
ABSTRACT:
A height adjustment system for a seat assembly of a machine includes a first support member and a second support member vertically spaced from the first support member. A pneumatic bladder is operatively connected to the first support member and the second support member for adjusting a distance between the first support member and the second support member. At least two guide pins interconnect the first support member and the second support member at opposing ends thereof. A locking device maintains an adjusted distance between the first support member and the second support member. The height adjustment system is preferably independent from and may be positioned in series with a suspension system for the seat assembly.
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Caterpillar Inc.
Liell & McNeil Attorneys, PC
McPartlin Sarah B
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