US 4,712,713 A · Gas cylinder coupling and weighting mechanism for a carbonated drink dispenser

Abstract

A gas cylinder coupling and weighing mechanism useful in a carbonated drink dispenser having a gas cylinder. The coupling and weighing mechanism supports the cylinder rotatably within a hood, the hood forming a lever which is biased upwardly by a spring. A full cylinder will pull the hood all the way down. As the cylinder is emptied, the hood will begin to move upward and when the cylinder is empty the hood will be fully upward. Mounted inside the hood is a fitting engaging with a mating fitting on the gas cylinder. The mating fitting is equipped with a pair of arms which are aligned with locking slots contained within the mating fitting which are used to engage pins on the fitting inside the hood when mounting the gas cylinder.

Claims27

Dependent claims

A gas cylinder coupling device for a gas cylinder with an axial threaded bore formed in the top thereof comprising:

(a) an O-ring seal surrounding the bore in said cylinder;
(b) a hollow cylindrical member having diameterically opposed arms, extending therefrom, openings formed in the ends of each of said arms, an annular wall formed at the axial inner, end of said cylindrical member, said annular wall overlying the top of said gas cylinder;
and
(c) a first fitting having one axial end threaded to mate with the threads in the bore of said gas cylinder and an enlarged portion outwardly of said threads, said fitting threaded into said opening in said gas cylinder, sealing against said O-ring and trapping said annular wall between said enlarged portion and the top of said gas cylinder, and the other axial end thereof adapted to accept a second fitting.

1 more element

Dependencies are inferred from the claim text.

Gas cylinder coupling and weighting mechanism for a carbonated drink dispenser

Life of this patent

Gas cylinder coupling and weighting mechanism for a carbonated drink dispenser

Life of this patent

Abstract

Claims27