US PATENT SUBCLASS 297 / 471
.~.~.~ Deformable or stretchable element

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

464  DF  BODY OR OCCUPANT RESTRAINT OR CONFINEMENT {6}
468  DF  .~ Safety belt or harness; e.g., lap belt or shoulder harness {9}
470  DF  .~.~ With means to absorb energy of acceleration {1}
471.~.~.~ Deformable or stretchable element {1}
472  DF  .~.~.~.~> Element is permanently deformed; i.e., one-time use

DEFINITION

Classification: 297/471

Deformable or stretchable element:

(under subclass 470) Apparatus wherein the means to cushion, soften, or neutralize the shock or strain comprises either (a) at least a portion of the straplike member being formed from a stretchable material in which energy is absorbed during the stretching process or (b) an additional deformable means associated with the straplike member which absorbs energy during the change in the configuration of the deformable means.