.~ Having pumping chamber pressure responsive distributor {8}
566
.~.~ Nonmetallic inlet or discharge distributor
DEFINITION
Classification: 417/566
(under subclass 559) Apparatus in which the valve means is fabricated of nonmetallic material.
(1) Note. A mere sealing portion of a metallic valve (e.g., o-ring) which is fabricated of nonmetallic material is not intended to be included under this definition. Generally, for classification under this definition, the entire pump fluid contacting portion of the movable valving member or
seat therefor must be formed of nonmetallic material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
479, for a valve formed from an integral portion of a flexible wall pumping member.
550, for a valve piston having a valve formed of flexible material.
