US PATENT SUBCLASS 92 / 226
.~.~.~.~ Bi-metallic restraining element

Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

172  DF  PISTON {19}
208  DF  .~ Open-ended hollow skirt type (e.g., trunk type) {15}
222  DF  .~.~ Specific or diverse material; or welded, brazed or soldered joint {4}
225  DF  .~.~.~ Element of diverse material for limiting radial movement of skirt part {3}
226.~.~.~.~ Bi-metallic restraining element

DEFINITION

Classification: 92/226

(under subclass 225) Apparatus in which the element is in the

form of a laminated plate-like member in which the different laminae are composed of different metals.