US PATENT SUBCLASS 187 / 360
.~.~ Interlocking only with structure of landings or terminus of shaft

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

351  DF  HAVING SPECIFIC MEANS CONTACTING OR ON LOAD SUPPORT FOR STOPPING OR SLOWING THEREOF {4}
359  DF  .~ Includes movable contact component on support for engaging shaft structure {4}
360.~.~ Interlocking only with structure of landings or terminus of shaft

DEFINITION

Classification: 187/360

Interlocking only with structure of landings or terminus of shaft:

Retaining, halting, or retarding means under 359 wherein the movable part can only forcefully engage fixed structure forming a portion of the landings* or the top or bottom of the shaft* to retain, halt, or retard the travel of the load-underlying support surface.