The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 1988
Filed:
Oct. 18, 1985
Applicant:
Inventors:
Martin B Barmatz, Glendale, CA (US);
James L Allen, La Crescenta, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ; G10K / ;
U.S. Cl.
CPC ...
181-05 ; 73505 ; 367191 ;
Abstract
An apparatus is described for acoustically levitating an object within a chamber by the application of acoustic energy of a single frequency resonant mode, which enables smooth movement of the object and suppresses unwanted levitation modes that would urge the object to a different levitation position. A plunger forms one end of the chamber, and the frequency changes as the plunger moves. Acoustic energy is applied to opposite sides of the chamber, with the acoustic energy on opposite sides being substantially 180.degree. out of phase.