Fluent material handling – with receiver or receiver coacting mea – Filling or refilling of dispensers – By operation of means causing or controlling dispensing
Patent
1994-12-12
1996-06-25
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Filling or refilling of dispensers
By operation of means causing or controlling dispensing
141 95, 141197, 12820213, 12820522, 1375133, A62B 700
Patent
active
055290965
ABSTRACT:
A self contained braathing apparatus (SCBA) has a fill valve for filling the air tank while a user is wearing the SCBA. An SCBA conventionally has a pressure gauge or other apparatus on a hose that extends around generally to the front of the user, and this apparatus is provided with a quick disconnect valve as a tank fill valve. Such appratus must include a flow limiting orifice, and the present invention includes a check valve in parallel with the orifice so a substantial air flow can be obtained in one direction while the flow in the opposite direction is limited to the safety-mandated small flow.
REFERENCES:
patent: 2603092 (1952-07-01), Buffenmyer
patent: 4111342 (1978-09-01), Kirby
patent: 4714077 (1987-12-01), Lambert
patent: 4838256 (1989-06-01), Miltz
patent: 4862931 (1989-09-01), Vella
patent: 5323773 (1994-06-01), Kobayashi
patent: 5396885 (1995-03-01), Nelson
Lewis R. David
Rowe, Jr. David F.
International Safety Instruments, Inc.
Jacyna J. Casimer
Middleton James B.
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