A couple smack of Keely....
Terry B
Aero-acoustic levitation device and method
http://www.patents.ibm.com/details?patent_number=5096017
Means and method for moving material using vibrational energy
http://www.patents.ibm.com/details?&patent_number=4235711
Converting acoustic energy into useful other energy forms
(Sonoluminescence)
http://www.patents.ibm.com/details?patent_number=5659173
METHOD OF PRODUCING LOCALLY OCCURRING INFRASOUND
http://www.patents.ibm.com/details?&patent_number=3612211
Sonic weapon system
http://www.patents.ibm.com/details?patent_number=4349898
Highly directional sound projector and receiver apparatus
http://www.patents.ibm.com/details?patent_number=5137110
Single transducer levitator
http://www.patents.ibm.com/details?patent_number=4573356
Thrust producing apparatus
http://www.patents.ibm.com/details?patent_number=5511044