US PATENT SUBCLASS 187 / 356
.~ Stationarily mounted and having disparate movable contact component

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}
356.~ Stationarily mounted and having disparate movable contact component {2}
357  DF  .~.~> Mounted only at landings or terminus of shaft
358  DF  .~.~> Having drive-means for component powered by load support motion

DEFINITION

Classification: 187/356

Stationarily mounted and having disparate movable contact component:

(under subclass 351) Retaining, halting, or retarding means which is fixedly located along a side of the shaft* and has at least one relatively moving connected part which has no other function but to engage the load-underlying support surface, or structure traveling therewith, to retain, halt, or retard the supporting surface when in one of its positions and in another of its positions allow free movement of the supporting surface therepast.

(1) Note. A fixedly located movable structure along a side of the shaft having a function other than the mere stopping of the load-underlying support surface (e.g., movable elongated guide rail) is found in subclass 351.