US PATENT SUBCLASS 187 / 344
.~ Fluid resistance or shock absorber-type means


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

343  DF  HAVING MEANS CUSHIONING CONTACT OF LOAD SUPPORT WITH TERMINUS OF SHAFT {1}
344.~ Fluid resistance or shock absorber-type means


DEFINITION

Classification: 187/344

Fluid resistance or shock absorber-type means:

(under subclass 343) Subject matter wherein the impact softening means includes structure which contacts or compresses a gas or liquid medium and utilized the retarding force caused by this contact or compression to slow down the load-underlying support surface coacting therewith.

(1) Note. This subclass includes patents in which the load-underlying support surface is designed to act as a piston within a cylinder of a fluid shock absorber when entering a modified portion of the shaft.