Scrubber tensioner on the Classic Kiss

S. Marc

Can anyone let me know if there is a device on the classic kiss for providing some tension on the scrubber bed to prevent settling, or does the CK just use the compression of the center section head on the scrim to do this, or springs under the lower scrim at the base of the scrubber?

If there is some type of compression / tension device, is it possible for someone to post a pic?

I have looked at the pics in the gallery and am unable to see any spring type device showing this.

Reason for asking is that I have decided, rather reluctantly, to have a machine shop do the machining on an aluminum head for my homebuilt which uses the same diameter and type of PVC as the CK although mine is 15 inches tall without the head (I have stuffed up two expensive pieces of perfectly good T6061 7" diameter 3 inch tall aluminium solid rod thus far when machining the radial o-ring grooves on my lathe - the last operation of the machining of course , and don't need any more rather expensive paper weights )

I will also be attempting to make a Radial Scrubber for this unit in the near future, which will be similar to the one that Skipbreather posted an article on for the Meg, but which will fit in the KISS diameter tube, but will be longer than the actual scrubber bed length of the stock CK. If there is any interest in this I will post pics when it is done.


Thanks,

Marc

dantheman

There is not. Simply filling the scrubber cannister properly should bring the mesh cover w/in the tolerance to keep the bed from loosening.

Very interested in your project, tho. I had a similar idea early on, but no umph behind it.
Please do tell more, or if you have a diagram .. ?

--dan

S. Marc

Thanks for the info on the Classic Kiss. I am surprised there is no tensioning device.

As for my diagram, it is at the machine shop for now. I will post pics of the head once I get it back.

What I am doing is using buddy inspiration OTS lungs, an Oxycheq ADV, and a standard axial type cannister for now with a Jetsam Kiss valve.

The tensioning device I designed is quite simple. The center section head will be similar in outward appearances to a Meg Head with one center tube for exhale, and a side tube for inhale. Being made out of aluminum it is easy to thread the inhale and exhale ports into the head so there is just enough room.

The design for the scrubber tensioner is simple. It is just a circular piece of plastic that has a location for the 3 sensors (similar to the Hammer Head designed for the Inspo), which is threaded onto the outer part of the exhale tube that protrudes from the underside of the head into the inside of the center section. A spring from a Biopak 60 (the one used to provide positive pressure to the biopak counterlung) is attached to it so that it will rest on the top of the top scrubber scrim and around the exhale tube that comes up from the bottom of the scrubber.

The lower scrim will likely have springs attached to the underside much like a BI scrubber cannister has.

The Design of the radial type scrubber will be almost idential to that of the one made by Skipbreather, but it will be smaller in diameter to fit the CK center section internal diameter and quite a bit longer - about 12 to 14 inches long.

The lid on the radial scrubber will incorporate a tensioner system very similar in design to the one for the axial scrubber mentioned above, to ensure there is little settling and constant tension on the scrubber bed.

My plan, given the smaller cross section and diameter of the radial scrubber (it will be a little over 5 1/2" OD), will be to have less or no mesh or pores for the first 3 to 4 inches from the top of exhale tube (that is located in the scrubber), to try and avoid breakthrough and hopefully force the exhaled gas to travel through more sorb before being inhaled.

I will likely begin working on the radial scrubber in a month or so, once I have the machined head back from the machine shop and then back from anodizing.

I will post pics for anyone interested.

Marc