(under subclass 43) Subject matter wherein the structure includes a member acting at the junction of the closure and closure support or container mouth to oppose the passage of fluid therebetween.
SEE OR SEARCH THIS CLASS, SUBCLASS:
232, for a closure sealed or bonded to the bottle, jug, or jar; the sealing or bonding agent having been applied to the closure or receptacle prior to placing the closure in position.
233, for a closure which is placed in its closed position and subsequently sealed to the bottle, jug, or jar by application of a hardenable liquid or plastic material such as paraffin.
341, for a closure provided with a definite, identifiable gasket seal or liner, which may or may not be integral with the closure.
SEE OR SEARCH CLASS
220, Receptacles, 378, for a receptacle closure of that class type having a gasket or packing.
277, Seal for a Joint or Juncture, for a generic sealing means or process,
628+, for a static contact seal for other than an internal combustion engine, or a pipe, conduit, or cable.
