Dispensing package for a viscous product

Details Dispensing package for a viscous product Dispensing package for a viscous product

1988-04-14

1989-06-13

Rolla, Joseph J.

Dispensing

With discharge assistant

Plural

222383, 222385, 222391, 222341, G01F 1100

Patent

active

048384615

ABSTRACT:
A package for containing and dispensing a viscous product such as toothpaste. The package includes a cylindrical container with a perforate spider member across an end of the container, such end serving as a dispensing end. A generally rigid, hemispherical pumping member with a discharge spout is reciprocatingly affixed to the dispensing end of the container, and is connected to a rodlike member which slidingly extends through the spider member and through a follower piston which is originally spaced away from the container. The container is operated by the application of hand pressure against the pumping member to move it toward the follower piston, with the pumping member being biased toward its original position upon the removal of the hand pressure by flexible portions of the rodlike member which engage the perforate spider and which are distorted by the movement of the rodlike member through the perforate spider. The follower piston is provided with a metallic clip which limits its movement in the container to movement toward the discharge end and which limits the movement of the rodlike member through the follower piston to movement away from the discharge end of the container.

REFERENCES:
patent: 3159317 (1964-12-01), Mini
patent: 3268123 (1966-08-01), Spatz
patent: 4413759 (1983-11-01), Mettenbrink
patent: 4437584 (1984-03-01), Connors et al.
patent: 4437591 (1984-03-01), von Schuckmann
patent: 4461403 (1984-07-01), Prahs
patent: 4479592 (1984-10-01), Rusing et al.
patent: 4503997 (1985-03-01), Corsette
patent: 4673106 (1987-06-01), Fishman
patent: 4753373 (1988-06-01), Seager

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