Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Reexamination Certificate
2007-09-11
2007-09-11
Nelson, Jr., Milton (Department: 3636)
Chairs and seats
Bottom or back with means to alter contour
Providing support for lower back region
C137S625250, C137S625110
Reexamination Certificate
active
10947462
ABSTRACT:
A device for controlling a fluid volume in shape changing elements of vehicle seats has a sliding valve connectable with a fluid pressure source and with shape changing elements for filling the shape changing elements with fluid and discharging fluid from the shape changing elements, the sliding valve having a housing provided with connecting openings for a corresponding one of the shape changing elements and a control slider movable in the housing relative to the connecting openings, the control slider having at least one control opening cooperating with the connecting openings and at least one connecting passage which opens in the control opening and is loadable with fluid from the fluid pressure source, the control slider being formed as an axial slider which is guided on the housing, the axial slider having an axial displaceably sliding head provided with the at least one control opening and the at least one connecting passage and a slider rod rigidly connected with the slider head for axial displacement of the slider head, and the connecting openings in a sliding direction of the slider head being arranged in a row at a distance one after the other.
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Buratowski Thaddaeus
Kern Christoph
Koepfer Markus
Alfmeier Praezision AG
Jr. Milton Nelson
Striker Michael J.
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