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:
Oct. 18, 1988
Filed:
Apr. 28, 1986
Richard A Fitch, La Jolla, CA (US);
James E Drummond, Oceanside, CA (US);
Maxwell Laboratories, Inc., San Diego, CA (US);
Abstract
An electrical precipitator which uses a combination of field charging, diffusion charging, and electron charging for the enhancement of fine particle charging and collection. A precipitator is described for the collection of fine particles of less than 1.0 micron in diameter from an effluent by enhancing the charge thereon by electrons of high kinetic energy. Another feature of the invention describes a precharging stage which can be added to the electron charging stage, or other conventional precipitator stage, that operates the basis of ion bombardment or diffusion of thermally active ions. The precharging stage charges the fine particles and they can later be increased in charge and precipitated by the electron charging stage. Another feature of the invention describes disposing a conventional stage for coarse particulates over 1.0 micron in diameter between the diffusion charging stage and the electron charging stage.