US PATENT SUBCLASS 187 / 278-- .~.~.~ Actuated by movement of building (e.g., seismic activity)

US PATENT SUBCLASS 187 / 278
.~.~.~ Actuated by movement of building (e.g., seismic activity)

Current as of: June, 1999
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187 /	HD	ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

250	DF	HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL {6}
276	DF	.~ Includes control for power source of drive-means {6}
277	DF	.~.~ With specific electrical component {9}
278		.~.~.~ Actuated by movement of building (e.g., seismic activity)

DEFINITION

Classification: 187/278

Actuated by movement of building (e.g., seismic activity):

(under subclass 277) Control* wherein the load-underlying support surface travels within a normally static, multistory structure and the information input component has its operation induced or modified by a change in position of one portion of the structure relative to either (a) another portion of the structure or (b) the ground caused by an accidental (e.g., explosion) or natural (e.g., wind deflection) external force thereon.