Inflatable life rafts

An inflatable life raft comprising a plurality of inflatable tubes forming the sides of a boat like structure, a floor member having its periphery connected to said inflatable tubes to form a boat like structure, said tubes defining a first chamber, an inflatable ramp connected to said tubes to provide ingress onto said raft, said inflatable ramp defining a second chamber, a hose connected to each of said chambers, a quick disconnect means interconnecting said hoses, said quick disconnect means having valve means operative in its connected condition to maintain an unobstructed passageway between said chambers, said valve means of said quick disconnect means operative in a disconnected condition to completely obstruct and block the passageway in each of said hoses to prevent deflation of chambers connected thereto, a tension member interconnected between said quick disconnect means and said raft, and said tension member operative in an untensioned condition to maintain said valve means of said quick disconnect means in said connected condition while operative in a predetermined tensioned condition to place said valve means of said quick disconnect means in a disconnected condition and thereby place said chambers in an uncommunicated condition.

An inflatable life raft comprising a plurality of inflatable tubes forming the sides of a boat like structure upon inflation, said tubes defining a first inflatable chamber, a flexible impermeable floor united to said inflatable tubes for cooperation with said inflatable tubes to form a boat-like structure, a cylinder attached to said tubes, said cylinder having pressurized gasses therein defining a second chamber, a first hose attached to one of said tubes for communicating with said first chamber, a second hose having one end attached to said cylinder for communicating with said second chamber, quick disconnect shut-off means interconnecting said first hose to said second hose for intercommunicating said first chamber to said second chamber, a tension member interconnected between said raft and said quick disconnect shut-off means and being operative to actuate said disconnect shut-off means to isolate said chambers to prevent flow of pressurized air between said chambers through their respective hoses in response to a preset distance between said quick disconnect means and said raft being exceeded.