(under the class definition) Subject matter including means between a bridge component and a support base (e.g., the earth, a column, pier, wall, or abutment) which allows slight movement of the bridge with respect to the base.
(1) Note. The "slight movement" referred to in this subclass includes shifting incidental to temperature change of the bridge parts.
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21, for a suspension bridge tower or anchor.
26, for an arch bridge abutment or anchorage.
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52, Static Structures (e.g., Buildings), 167.1+, for an expansion device (e.g., bearing pad) allowing compensation, and absorbing motion in, e.g., a building.
