Why a pneumatic or gas driven system?

With a pneumatic gas driven system, we eliminated all needs for electrical including batteries and the recharging needs batteries cause.  We eliminated weight needs from alternative automatic lifting systems like worm screws and hydraulic pumps.

Without the weight of batteries, pumps and steel screws, we are able to provide a lightweight device that easy to use and very functional.

How it works:  We use our patent pending design so that gas regulated in the 80 psi to 160 psi range provides the lifting mechanism using an easy to use control mounted on the LIFTnWALK™.  Our 5# CO2 cylinder will provide over 200 lifts per container depending on the weight of the user.  We can provide up to 350 pounds of lift assistance to the user.

We can use any gas in a canister that is normally compressed.  Choices include CO2 (our recommended choice), compressed air, industrial oxygen, medical oxygen, argon or nitrogen.

Choosing the gas of choice: We recommend the use of CO2 because CO2 is readily available, inexpensive and safe.  CO2 is widely used in soft drinks and beer, usually in durable, light weight aluminum containers and usually 20# versions for soft drinks and 5# or 10# for beer,.  CO2 is also used by air conditioning and heating companies to clear lines with pressure and is often used in steel containers.  CO2 is also used in the welding industry and has recently been used as the propulsion agent in paint ball guns.  One of the most common use of CO2 gas is by the fire extinguisher industry.

CO2 is the only gas readily sold in liquid form.  Due to it's liquid form, a large gas volume can be used from a smaller container which will maximize the users' number of lifts versus size and weight of container.  CO2 produces an unregulated 850 psi from the first use until the last use of a cylinder.  We use a regulator to control the pressure from 80 psi to 160 psi.

Why offer other gases? We want to be sure that users, even in the most remote location, will have access to replacement gas easy, efficiently and economically.  Often in remote areas, there is a welding supply or medical supply which will always have high pressure oxygen or nitrogen in stock even if they do not have CO2.  Medical oxygen requires a prescription to purchase. Often industrial gases are only available in steel containers which will add significant weight to the LIFTnWALK™ device.

Other compressed gasses are "packed" into a cylinder usually with pressures in the 2500psi range.  As the gas is used, the pressure declines with each use until all the gas is gone.  Like CO2, we use a regulator to control the used pressure from 80 psi to 160 psi.  

One of the disadvantages of the use of oxygen is oxygen's promotion of combustion.  To produce combustion, a fire must have oxygen, heat and a combustible source.  Because of this, as an alternative, we would recommend nitrogen over oxygen in remote areas..