mikerault
Contributor
Here is an idea for a scuba gadget...a clear plastic hood with one of those springy round rings at the bottom for use in a cesa...as you exhaled on the way up it would capture the air and let you rebreath it if it was needed...could be weighted to offset the buoyancy of the air volume...
It is based on the Steinke hoods used for ascent from a downed submarine. You slide the hood out of your pocket, snap it to open and place it over your head, as you exhale it fills with the "used" air, which still has plenty of O2 in it, allowing you to breath on the way up. The actual live air volume would be very small, but enough to give you a breath or so, so a 1-2 pound buoyancy penalty would be added to your weights. As the air expands on the way up, it leaks out of the bottom of the hood (it isn't tight around the neck)
Just a thought...with those rings they put on laundry bags that allow them to fold easily but snap open instantly (or like the ones used on some car sunshades) the size would be small when not used and easily stowed.
Of course the full Steinke hood (shown on this page:
http://www.usscasimirpulaski.com/virtualmuseum.htm
)
would be too much, this would just be a heavy clear plastic hood with a snap open end.
Mike
It is based on the Steinke hoods used for ascent from a downed submarine. You slide the hood out of your pocket, snap it to open and place it over your head, as you exhale it fills with the "used" air, which still has plenty of O2 in it, allowing you to breath on the way up. The actual live air volume would be very small, but enough to give you a breath or so, so a 1-2 pound buoyancy penalty would be added to your weights. As the air expands on the way up, it leaks out of the bottom of the hood (it isn't tight around the neck)
Just a thought...with those rings they put on laundry bags that allow them to fold easily but snap open instantly (or like the ones used on some car sunshades) the size would be small when not used and easily stowed.
Of course the full Steinke hood (shown on this page:
http://www.usscasimirpulaski.com/virtualmuseum.htm
)
would be too much, this would just be a heavy clear plastic hood with a snap open end.
Mike