Self-pressurized portable container for liquids

Details Self-pressurized portable container for liquids Self-pressurized portable container for liquids

1975-06-30

1976-11-02

Reeves, Robert B.

Dispensing

Resilient wall

With flow controllers or closures

222215, B65D 3700

Patent

active

039891704

ABSTRACT:
This portable container for liquids includes a bottom ring plate on which is nested an upper pressure plate. An elastic membrane overlays the pressure plate to define therewith a chamber for containing a liquid under pressure. The membrane has a circumferential side wall abutting a side wall of the pressure plate, and an inturned wall section engaged between side walls of the ring plate and pressure plate. A nipple having a threaded axial bore opening into the chamber is integral with the pressure plate and extends downwardly through a central hole in the ring plate. A fitting having an externally threaded shank is engaged in the threaded bore of the nipple. The fitting has a radially extending other nipple on which is secured a flexible tube for passing liquid under pressure into and out of the chamber while the membrane expands and contracts. The fitting may have a radially extending head abutting a flange which is integral with the ring plate and surrounds the central hole, to hold the assembly together. Alternatively, the nipple of the pressure plate can be externally threaded and a nut can be screwed in this nipple to about the ring plate and hold the assembly together. The fitting may then have an annular flange abutting the nut to lock the fitting and nut in place.

REFERENCES:
patent: 3722756 (1973-03-01), Cramer, Jr.
patent: 3895742 (1975-07-01), Willbern

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