The advantages he claims are durability, economy, and simplicity. Experts have examined the machine and pronounce it a success. This storage chamber holds the highly compressed fluid until it is gradually released to drive a piston or rotary device with the idea of providing a motive force. As the tank pressure increases through continuous accumulations of small portions of gas packets, it becomes more and more difficult for the compressor to continue to add more air to the tank. One of the major keys is the pressure release level of the valve allowing the air to flow from the compressor into the tank.
Some valves are adjustable with a spring loaded gasket.
Eventually we have quite a large amount of force stored in the tank. This force can be released suddenly or as slowly as the operator desires. The 75 pound weight might act as a thrust multiplier which is further amplified by the magnetic attraction on the compressive stroke. With the new super high flux magnets that have been developed in Japan, we might have a most interesting means for generating very high pressures with a negligible energy input, if any. Remember that the amplitude of the stored force must be sufficient to provide a decent HP level on a controlled release.