US PATENT SUBCLASS 238 / 109
PEDESTALS


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



238 /   HD   RAILWAYS: SURFACE TRACK

109PEDESTALS {7}
110  DF  .~> Pot {1}
112  DF  .~> Wrought plate {1}
114  DF  .~> Tube or box
115  DF  .~> Concrete block {2}
118  DF  .~> Wood block
119  DF  .~> Pier
120  DF  .~> Screw


DEFINITION

Classification: 238/109

Individual supporting-blocks or pot-sleepers adapted to be embedded in the road-bed or ballast and support the rails. Two of these blocks or pot-sleepers act as a substitute for a tie; but they are not designed to have a cross-beam action, like a tie.