(under subclass 162) Devices in which there is a valve across the bottom of the container for admitting and retaining fluid from the well, the valve and container being so constructed that the valve may be readily bodily moved from its position across the container so that the container may be emptied after it has been withdrawn from the well.
(1) Note. In the case of a pivoted valve the "bodily movement" is such as to include movement of the pivot axis.
(2) Note. A reciprocating type check valve readily movable only by means extending through the discharge opening is not included in the definition of this subclass. See Class 294, subclass 72 for such devices.
SEE OR SEARCH CLASS
285, Pipe Joints or Couplings, appropriate subclasses for a joint between tubular sections of the receptacle.
