US PATENT SUBCLASS 285 / FOR 126
.~.~.~ Slip anchored inner tube (285/144)

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

FOR 100  DF  SYSTEMS (285/120) {11}
FOR 120  DF  .~ Inner to spaced outer tube coupling (285/138) {2}
FOR 122  DF  .~.~ Suspended (e.g., oil well casing type) (285/140) {3}
FOR 126.~.~.~ Slip anchored inner tube (285/144) {4}
FOR 127  DF  .~.~.~.~> With slip actuator (285/145)
FOR 128  DF  .~.~.~.~> With unitary slip and packing assembly (285/146)
FOR 129  DF  .~.~.~.~> With slip-compressed packing (285/147)
FOR 130  DF  .~.~.~.~> With packing seat on slip (285/148)

DEFINITION

Classification: 285/FOR.126

Foreign art collection in which a slip or internally serrated member grips the inner tube to provide it with a supporting shoulder.