Buoys – rafts – and aquatic devices – Water rescue or life protecting apparatus – Personal flotation device
Reexamination Certificate
2006-03-28
2006-03-28
Wright, Andrew D. (Department: 3617)
Buoys, rafts, and aquatic devices
Water rescue or life protecting apparatus
Personal flotation device
C441S096000, C222S005000
Reexamination Certificate
active
07018257
ABSTRACT:
A multifunction manually oriented inflator to amplify the volume of gas provided for low-pressure inflation of multiple bladders. A default operation can be as a high pressure fixed-volume inflator. A shut off valve preserves excess gas supply while regulated flow allows optimizing volume versus rate of inflation and risk of aspiration. A detachable low-resistance check valve-coupler allows the valve to also serve as an oral inflate and rapid deflate valve for improving volume amplification. Audible alarms distinguish functional inflation from gas wasting over-inflation. Conserved gas can be used to inflate or pressurize additional survival devices or operate signal horns. A locking mount can align and secure a cylinder adjacent the piercing mechanism. Spent cylinder threads can be degraded preventing reinstallation of a micro-pierced cylinder.
REFERENCES:
patent: 3905755 (1975-09-01), Aske
patent: 4635754 (1987-01-01), Aschauer et al.
patent: 6220909 (2001-04-01), Aschauer et al.
patent: 6494756 (2002-12-01), Michaud et al.
Polley, P.A. Daniel S.
Wright Andrew D.
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