Self-contained oxygen rebreather with semi-permeable membrane to

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

12820127, 12820428, 12820513, 12820517, A62B 710, A62B 1900, A62B 2302, B63C 1102

Patent

active

057788766

ABSTRACT:
A self-contained underwater breathing loop apparatus for an oxygen rebreather includes a breathing bag formed to act as a compliant volume and a semipermeable membrane arranged to divide the breathing bag into a first chamber and a second chamber. A breathing hose is connected between a mouthpiece and the first chamber of the breathing bag to conduct exhaust breath from the diver thereto. The semipermeable membrane is formed to allow helium in the diver's exhaust breath to pass therethrough while preventing oxygen in the exhaust breath from being transported from the first chamber into the second chamber. A relief valve in the second chamber allows helium in the second chamber to be expelled into the water. A CO.sub.2 scrubber is in fluid communication with the first chamber of the breathing bag. A helium supply in fluid communication with the CO.sub.2 scrubber for supplying helium to the breathing loop through a metering valve. The helium supply preferably may be manually controlled by the diver to add helium in controlled amounts to the breathing loop to permit the diver to descend to a greater depth.

REFERENCES:
patent: 3957043 (1976-05-01), Shelby
patent: 5315988 (1994-05-01), Clarke et al.
patent: 5503145 (1996-04-01), Clough

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Self-contained oxygen rebreather with semi-permeable membrane to does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-contained oxygen rebreather with semi-permeable membrane to, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-contained oxygen rebreather with semi-permeable membrane to will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1872764

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.