Bill and his pendulum oxygen rebreather

Bill build an oxygenrebreather with pendulum breathing

Bill recently sent me pictures of his self-built Pendulum rebreather. This is an automatic type with a so called “auto oxygen addition”. As you can see there is a small scrubber with sofnolime, and the air moves back and forth through 1 hose. For further adventures of Bill see the pages of the CEDU (Crestline experimental diving unit) here

Here’s the Oxygen Dosing System. A constant mass injector using a 0.004″ pierced ruby.
Manually turned on and off. Super simple design !

Here’s the scrubber, removed from the counter lung. The scrubber body is made of mirror- or thermo-welded ABS.
Between the scrubber and the breathing lung is a Latex gasket around the bolts.

Close up the scrubber. You can clearly see the filter. The scrubber is placed in the lung. So the scrubber has a radial operation!

Here’s the contralong, made of latex. The seams are double glued. On the right side the connection for oxygen dosing.

Here the scrubber with open filling hole. Sofnolime 1-2.5 mm is used.

Filled, and ready to go!

Here the lightweight system dive ready.

Here you can see the contralong placed over the scrubber. The scrubber is now in the counter lung.
The diver breathes through the hose through the scrubber into the lung.

Thanks Bill for the nice pictures, and comments.

I’am sure the Dutch readers love the simpel design. Yesterday I received some nice pictures from TOM ROSE, he will be in my future pages!

Cheers

Janwillem

Bill lives in ALASKA and is the designer of this beautiful pendulum oxygen rebreather.

PLEASE NOTE: REBREATHERS ARE LIFE SUPPORT EQUIPMENT.ONLY DIVE WITH REBREATHERS IF YOU HAVE RECEIVED THE PROPER TRAINING. OXYGEN REBREATHER ARE LETHAL WHEN USED DEEPER THAN 6 METERS!