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:
Mar. 03, 1981
Filed:
Jan. 19, 1979
Conrad A Bodai, Davis, CA (US);
Balazs I Bodai, Sacramento, CA (US);
Bodai Industries, Inc., Dallas, TX (US);
Abstract
The specification discloses structure where by applying modulated selectivity constituents are separated from tobacco smoke by stimulated coagulation and adsorption. An ultrasonic generating disc (30) is disposed in the flowstream of the tobacco smoke for generating an ultrasonic field having frequencies up to about 1 MHz to cause coagulation and adsorption of constituents in the flow. The disc (30) includes a ring of semicircular cavities (56), having sharp edges (54) defined on the boundary thereof, which form essentially a ring of vibrojet whistles facing into the flow. The vibrojet whistles are driven by the flow to produce high frequency vortices in the cavities (56). The cavities (56) resonate in phase to create disturbances downstream of the disc (30) which constructively interfere to create a high energy ultrasonic field in the flow. The cavities (56) are arranged so that the energy of the sonic field is directed into a relatively small region thereby inducing coagulation and adsorption.