US PATENT SUBCLASS 52 / 167.9
.~.~ Polymeric support structure (e.g., Teflon@)

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

167.1  DF  MEANS COMPENSATING EARTH-TRANSMITTED FORCE (E.G., EARTHQUAKE) {3}
167.4  DF  .~ Relative motion means between a structure and its foundation {3}
167.9.~.~ Polymeric support structure (e.g., Teflon@)

DEFINITION

Classification: 52/167.9

Polymeric support structure (e.g., Teflon ):

(under subclass 167.4) Structure wherein the means allowing motion includes providing a supporting surface of polytetrafluoroethylene (PTFE or Teflon ) or other similar polymeric substance between a structure and its supporting foundation.