for dispensing fluent contents by means of a piston

Full Title

Containers or packages with special means for dispensing contents (dispensing means incorporated in closures B65D47/00) > for dispensing fluent contents by means of a piston

Child Classifications

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• B65D 83/761 the piston being actuated by a screw-shaft
• B65D 83/763 the piston being actuated by a reciprocating axial motion of a shaft which engages the piston, e.g. using a ratchet mechanism
• B65D 83/764 the piston cooperating with a screw-thread in the side wall of the container
• B65D 83/765
• B65D 83/766 the piston being actuated by a spring-like mechanism
• B65D 83/767 the piston having an integrated dispensing opening (B65D83/762 takes precedence)
• B65D 83/768