Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Interlocked discharge means – support and/or coupling
Patent
1989-06-23
1991-02-19
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
Interlocked discharge means, support and/or coupling
141 18, 12820226, 422126, 422166, B01J 700
Patent
active
049934627
ABSTRACT:
A control assembly is described for controlling the flow of gas from a gas generating unit into a gas bottle to be charged. The bottle cannot be charged until a latch has been pushed clear by means of a button and until an operating lever has been moved into an unactuated position. The button is then released to latch the bottle and the operating lever is moved to the actuated position to close a micro-switch in series with a second micro-switch which is only closed when the neck of the bottle is properly inserted. These micro-switches electrically energize an ignition unit and gas generation starts. Gas passes through a bore in a piston and a pin carried thereby and initially escapes around the outside of the gas bottle neck thus purging contaminants. The piston and pin now commence to move under the action of the gas pressure and the distal end of the pin sealingly enters the bottle. Gas pressure opens a check valve in the bottle neck and charges the bottle. When peak pressure is reached, the check valve automatically closes. The operator then moves the operating lever to the unactuated position to open a depressurizing valve, allowing any still-present gas to pass to the underside of the piston, thus withdrawing the pin from the bottle neck. The latch button can now be depressed to enable the charged bottle to be removed.
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Oxley Michael D.
Wiseman Peter N.
Graviner Limited
Recla Henry J.
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