US PATENT SUBCLASS 123 / 188.6
.~ Packing

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

188.1  DF  VALVE {10}
188.6.~ Packing

DEFINITION

Classification: 123/188.6

Packing:

(under subclass 188.1) Apparatus having a sealing means located around a valve stem.

SEE OR SEARCH THIS CLASS, SUBCLASS:

90.37, for a poppet valve mechanism's lubrication system including a seal or shield that may include a valve stem seal or shield movable with the operating mechanism.

SEE OR SEARCH CLASS

277, Seal for a Joint or Juncture, for a generic sealing means or process,

502, for a valve stem seal for an internal combustion engine.