Closed Circuit Oxygen Rebreathers
- For more information see Porpoise (make of scuba gear)#A make of diving oxygen rebreather.
Eldred's initial efforts were to make an oxygen rebreather safe for sporting use. Pure oxygen used in early rebreathers causes CNS poisoning below 33 fsw. Eldred reasoned that the rebreather should be designed to stop flowing oxygen when the diver descended below that depth. At a demonstration by the Flinders pier, on Western Port Bay, south east of Melbourne, a diver passed out because he failed to purge the system of air. This failure to purge had resulted in a nitrogen build up. Eldred realized at this point that he needed to turn his efforts toward open circuit compressed air breathing apparatus. He was accompanied on this demonstration by Bob Wallace-Mitchell, who would become his distributor.
Read more about this topic: Ted Eldred
Famous quotes containing the words closed, circuit and/or oxygen:
“No other creative field is as closed to those who are not white and male as is the visual arts. After I decided to be an artist, the first thing that I had to believe was that I, a black woman, could penetrate the art scene, and that, further, I could do so without sacrificing one iota of my blackness or my femaleness or my humanity.”
—Faith Ringgold (b. 1934)
“The Father and His angelic hierarchy
That made the magnitude and glory there
Stood in the circuit of a needle’s eye.”
—William Butler Yeats (1865–1939)
“All the oxygen of the world was in them.
All the feet of the babies of the world were in them.
All the crotches of the angels of the world were in them.
All the morning kisses of Philadelphia were in them.”
—Anne Sexton (1928–1974)