US 5,334,064 AGranted

Life raft storage and inflation system

AssigneeHampton Rubber Company

InventorsKenneth L. Ketterman, Raymond M. Kinne

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Abstract

A life raft storage and inflation assembly, or system (12) of a type having a deflated life raft (22) stored in a separable canister (14) includes a hose assembly (34, 34') which can be broken down for coupling a selectively activated nozzle of a compressed-gas cylinder (24, 24') to an inlet cock (32, 32') of the deflated life raft. The hose assembly is comprised of a thermo-plastic hose (36); two brass sockets (38) which thread onto an outer surface of the hose; and two coupling fittings, a male life raft coupling fitting and a female cylinder coupling fitting. Each of these coupling fittings has a threaded nipple (52) on one end. These nipples are screwed through ends (48) of the sockets into the interior of the hose. Couplings at the other ends of these coupling fittings are designed differently. A female, or cylinder, coupling (60) of the female coupling fitting has female threads (82) that mate with a male nipple on the gas cylinder. A male, or raft, coupling (62) of the male hose coupling fitting has a male threaded end that screws into a life raft coupling. The female coupling that fits on the cylinder has both internal and external coupling seals (70, 89) thereon to couple with both newer and older types of cylinder nipples (90, 88) which are attached thereto with of a swivel nut (76) held to the cylinder coupling by a retainer pin (78).

A life raft storage and inflation system comprising:

a clamshell life-raft canister having at least two separable parts and forming a canister cavity therein;
a deflated raft stored in said canister;
a compressed-gas cylinder stored in said canister, said compressed-gas cylinder including a selectively activated nozzle for being activated to release air from said compress-gas cylinder;
an activating means for activating said nozzle to release said compressed gas;
a hose assembly for being coupled to said compressed-gas-cylinder selectively-activated nozzle and extending therefrom to an inlet cock of said deflated life raft, said hose assembly comprising:
a hose formed of a fiber-reinforced, thermoplastic hose wall;
cylinder and raft sockets having self-tapping female threads for being screwed onto an outer surface of said hose at opposite ends thereof, each of said sockets having smaller-diameter female nipple threads positioned at an outer end thereof beyond a respective end of the hose;
cylinder and raft nipples having male threads thereon for respectively mating with the smaller-diameter, female, nipple threads of respective cylinder surface of the hose for thereby sealing the hose wall between the nipples and the sockets, each of said cylinder and raft nipples being respectively made as one piece with one of a cylinder and raft coupling for respectively coupling to one of said cylinder nozzle and said inlet cock;
wherein said cylinder coupling is tubularly shaped to define a coupling-seat cavity in a bore thereof with a metallic inner seat therein for sealing with a first type of cylinder nipple and wherein said cylinder coupling is surrounded by a swivel nut mounted on an outer surface of said tubularly-shaped cylinder coupling by means of a circular retainer pin to swivel thereon and said cylinder coupling defines an external seat at an outer end thereof with an O-ring thereon held laterally in place by said swivel nut for sealing with second type of cylinder nipple.

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Abstract

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