US PATENT SUBCLASS 166 / 88.1
.~ Inner member anchor or seal with lateral port

Current as of: June, 1999
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166 /   HD   WELLS

75.11  DF  ABOVE GROUND APPARATUS {25}
88.1.~ Inner member anchor or seal with lateral port {3}
89.1  DF  .~.~> Plural inner pipes {2}
88.2  DF  .~.~> Slip type well anchor {1}
88.4  DF  .~.~> With hydraulic conduit or line extending through outer member

DEFINITION

Classification: 166/88.1

Inner member anchor or seal with lateral port:

(under subclass 75.11) Above ground apparatus comprising an

enclosure having an opening in a side wall thereof for allowing flow of fluid into the well or from the well for outside delivery in combination with (a) means for preventing upward or downward movement of a pipe, rod or cable member depending into the well or (b) a flow prevention device closing the annular space between the enclosure and an pipe, rod or cable member.

(1) Note. The sealing means under (b) of the definition may be a valve type blow out preventer classifiable, in Class 251, subclasses 1.1+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

84.1+, for a seal interposed between a casing and an inner member reciprocating therein and which may have a lateral port communicating with the casing.

86.1+, for a casing which may have a lateral port and an inner elongated member either anchored to the casing or sealed therein, in which a flow passage is provided with a valve.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning, 220.4, for fabric- type wiper for rods, pipes or cables, subclass 236.01 for a scraper, and subclass 236.1 for a rotary scraper.

251, Valves and Valve Actuation,

1.1+, for valve-type blowout preventers

277, Joint Packing,

5+, for a packing which opens or yields to allow a projection on the rod to pass, subclasses 19+, for sealing means with external fluid receiver usually between a casing and an inner rod, pipe, or cable, subclass 31 for rotatable packing for axially moving rod, subclass 33 for axially biased rod.

285, Pipe Joints or Couplings,

123.3+, for joints between a well head and an inner pipe.