US PATENT SUBCLASS 166 / 134
.~.~ Support and holddown expanding anchors

Current as of: June, 1999
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166 /   HD   WELLS

179  DF  PACKERS OR PLUGS {17}
118  DF  .~ With expanding anchor {12}
134.~.~ Support and holddown expanding anchors

DEFINITION

Classification: 166/134

(under subclass 118) Devices in which the expanding anchor comprises two distinct means, one being adapted to anchor the device against downward movement, and the other adapted to anchor the device against upward movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

122, for devices as defined in subclass 134 in which the packer or plug sealing portion is expanded in order to actuate the anchor means to expand condition.