Perpetual Motion Patents — updated

I have posted a couple of times earlier, on this blog, about perpetual motion patents, how everybody knows they can’t be patented and even so there are always patents being issued on such inventions. Typically, they use the energy of gravity and buoyancy to provide unlimited energy from their power source. The fact that the USPTO allows these to issue contravenes what every middle-school science teacher imparts to his or her students: You don’t get anything from nothing. At least not if you’re honest about it. There is always something important that the inventors neglected to consider, and that the patent examiner’s have conveniently overlooked: considerations such as pressures and weights.

Here are a few new patents that have been granted since my previous posting on this subject. I know there is some interest out there, because of all the postings, the ones on perpetual motion patents seem to get the greatest number of hits.

Townsend, IV, US 10,774,819; Displacement Device with Force Displacement Mechanism. This system uses a piston plate to lift large volumes of water, and for compressing air. It is not clear whether the inventor has taken into account the change in weight of the increased height of the water column.

Chu et al., US 10,982,646: Ocean Tidal Current Energy Power Generating system. This system seems to use the energy from the earth rotating across the gradient of the earth’s moon’s gravity (which causes tides) but it is hard to see how the inventor’s complex system of working platform and floating bodies takes advantage of that to produce power.

Filloramo US 10,584,687 is a Gravity and Buoyancy Engine, with a gravity chamber, and air lock, and a buoyancy chamber, and uses that system to generate electricity. The title says it all.

Mufdi US 10,215,153 is a Buoyancy Mill that uses buoyancy as a propellant for generating clean useful energy.

Desai US 11,296,620 is an electronic power source, i.e. a Metallic Glow Discharge Diode, with an inner anode and a surrounding outer cathode, and a low pressure gas in the space in between them. Supposedly, cosmic rays that pass through the discharge diode ionize the low pressure gas and create power between the anode and cathode.

Currie US 10,699,973 is for a rotating self-excited asymmetric resonant cavity turbine, that uses a differential internal RF resonance to generate electrical power.

Ramsundar US 11,022,091 is for a Plantz Buoyancy System. The inventor provides a definition of Plantz in his Detailed Description: “a machine that captures buoyancy forces on floats submerged in a liquid column.” This is like many machines that use gravity energy and buoyancy energy and convert them somehow into useful rotational energy.

Che US 11,047,359 is a gravitational turbine engine with floats contained in a spacial structure filled with a fluid.

I will leave it to the readers (if they have the energy) to figure out which if any of these might actually work, or to figure out if they think it is even worth the trouble. Of course, these devices could always find a use as a teaching aid in middle school science, to show that perpetual motion is just an illusory fantasy.