(under subclass 86) Apparatus in which the enclosure is restricted to either (1) the aperture of the receptacle or (2) the aperture and the adjacent portion of the receptacle the rest of the receptacle not being enclosed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
268+, for similarly restricted enclosure means in conjunction with filling (other than or in addition to gas) and closing of receptacles.
SEE OR SEARCH CLASS
141, Fluent Material Handling, With Receiver or Receiver Coacting Means,
287, for devices including a gas expanding seal means between a vented filling head and a separable receiver.
