Title: Closure units for containers

Abstract: A double-valved closure for a container, particularly a beer container, comprises a cup assembly for insertion into the opening of the container and includes a tubular component of plastics material having legs between which a reaction ring can be sprung during assembly of the closure. A downtube is received in the ring and extends from the lower end of the cup assembly into the container and surrounds one of the valves and a spring biasing the valve closed. The valve is carried by the top of the downtube and the reaction ring provides an abutment for the spring for this other valve and which biases the valve closed. The legs are held together after insertion of the reaction ring by means of an outer ring engaging external grooves in the legs.

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Inventors: Golding, Cyril George (Sedgeley, EN)

Application Number: 564757
Filing Date: 1975-04-03
Publication_date: 1976-02-24
Assignee: GKN Sankey Limited (Bilston, EN)
Primary Class(es): 137/212 217/99, 222/400.7
Other Classes:
US Patent Ref:

3036586	May, 1962	Reeve	137/212.
3361152	Jan, 1968	Akers	222/400.
3473556	Oct, 1969	Johnson et al.	222/400.
3672390	Jun, 1972	Gravestein	137/212.
3776260	Dec, 1973	Ruddick	137/212.

Other Refs: 296,192

Aug, 1928	UK

Primary Examiner: Price, William
Assistant Examiner: Shoap, Allan N.
Attorney: Merriam, Marshall, Shapiro & Klose