Patent ID: 11892015
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  H  B | IPC B  F  H

Claim 8:
9. A method of wireless actuation, the method comprising:
providing (i) a bladder having an inner surface and an outer surface, the inner surface forming an interior area, the bladder configured to expand or retract so as to change an area of the interior area, (ii) a plurality of magnetic particles suspended in a fluid medium and disposed within the interior area, and (iii) a sleeve disposed on the outer surface of the bladder;
exciting the plurality of magnetic particles by application of an alternating magnetic field to which the plurality of magnetic particles react; and
causing, by the excited magnetic particles, a phase transition to the fluid medium within the interior area which causes the bladder to expand, such that the sleeve confining the bladder generates actuation from the expansion or retraction of the bladder.