Dispensing – With discharge assistant – Fluid pressure
Patent
1976-07-23
1978-04-04
Reeves, Robert B.
Dispensing
With discharge assistant
Fluid pressure
137323, 222483, B65D 8300
Patent
active
040822060
ABSTRACT:
A cap assembly is provided for use with a container for storing and supplying aqueous ammonia to a diazo type copying machine. The cap assembly comprises a closure member mounted on the container and a key device associated with free ends of an ammonia feed tube and a drain tube connecting the container to a developer system of the copying machine. The closure member includes a feed outlet to permit ammonia flow from the container to the feed tube and a drain outlet to permit ammonia flow from the drain tube to the container. The closure member also includes a seal adapted for selective actuation by the key device between a first position for closing the feed and the drain outlets to prevent ammonia flow and a second position for opening the outlets to permit ammonia flow. The key device is releasably retained by the closure member when the seal is in the second position and is released from the closure member when the seal is in the first position, to thereby prevent escape of ammonia fumes from the container to the ambient atmosphere during replacement of an empty container with a container providing a fresh supply of ammonia.
REFERENCES:
patent: 3035603 (1962-05-01), Jamieson et al.
patent: 3437236 (1969-04-01), Huck
patent: 3498313 (1970-03-01), Belich
patent: 3535997 (1970-10-01), Blake
patent: 3855997 (1974-12-01), Sauer
patent: 3984021 (1976-10-01), Uhlig
DeRyke Thomas V.
Meller Frederick D.
Patzke Robert C.
Addressograph Multigraph Corporation
Kondzella Michael A.
Reeves Robert B.
Silverberg Fred A.
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