Robotic jellyfish

#U.S. patent application Ser. No. 15/101,901 discloses a torque reaction engine (TRE), which may be used in a watercraft to achieve a fish-like motion. The resulting craft swims like a fish or marine mammal, without the myriad parts that plague other mechanical craft that attempt to swim like a fish or marine mammal.

#At times it may be desirable to swim in other modes, such as like a jellyfish.

#FIG. 1A illustrates an example of a robotic jellyfish including a torque reaction engine.

#FIG. 1B illustrates the robotic jellyfish of FIG. 1A, in a top plan view.

#FIG. 2A illustrates the robotic jellyfish of FIG. 1A, during a first phase of motion of the torque reaction engine.

#Certain of the inventions disclosed herein comprise systems and apparatus to accelerate thrust fluid and to produce thrust like a jellyfish, through use of one or more torque reaction engine (TRE).

#It is intended that the terminology used in the description presented below be interpreted in its broadest reasonable manner, even though it is being used in conjunction with a detailed description of certain examples of the technology. Although certain terms may be emphasized below, any terminology intended to be interpreted in any restricted manner will be overtly and specifically defined as such in this Detailed Description section.

#The figures and text therein illustrate and discuss examples of a craft that accelerates thrust fluid and achieves thrust like a jellyfish, through use of more than one torque reaction engine (TRE).