US PATENT SUBCLASS 212 / 273
.~ Antisway (i.e., horizontal movements)

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

272  DF  HAVING MEANS TO PREVENT OR DAMPEN LOAD OSCILLATIONS {1}
273.~ Antisway (i.e., horizontal movements) {2}
274  DF  .~.~> By triangulation of load cables
275  DF  .~.~> By cyclic control of trolley acceleration or deceleration

DEFINITION

Classification: 212/273

Antisway (i.e., horizontal movements):

(under subclass 272) Subject matter wherein means are provided to arrest or reduce the undesired swinging movement about an axis orthogonal to a vertical axis.