US PATENT SUBCLASS 187 / 345
HAVING FLUID DAMPENING MEANS REGULATING LOAD SUPPORT MOVEMENT

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

345HAVING FLUID DAMPENING MEANS REGULATING LOAD SUPPORT MOVEMENT {2}
346  DF  .~> With fluid coacting portion carried by load support
347  DF  .~> Includes piston and cylinder attached to support by cable

DEFINITION

Classification: 187/345

HAVING FLUID DAMPENING MEANS REGULATING LOAD SUPPORT MOVEMENT:

(under the class definition) Subject matter having means which (a) contacts and pushes against a resisting fluid and (b) is linked to, engages, or is supported on the load-underlying support surface to slow the travel of the support surface to an acceptable speed in at least one direction by direct utilization of the resistance of the fluid to the movement of a component of the means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

343+, for means which cushions the travel of the load supporting surface only near an end of the shaft*.

351+, for means stopping the load supporting surface which utilizes a fluid operator* for moving a component.

SEE OR SEARCH CLASS

188, Brakes,

266+, for an internal-resistance motion retarder, per se.