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:
May. 13, 1986
Filed:
Jul. 25, 1984
Gary R Gillingham, Prior Lake, MN (US);
James C Rothman, Apple Valley, MN (US);
Donaldson Company, Inc., Minneapolis, MN (US);
Abstract
An apparatus (10) for cleaning a flow of particulate-laden gas is disclosed. The apparatus (10) has a housing (11) having a gas inlet (15) and a gas outlet (16) to permit a flow of gas through the housing (11). Suspended inside the housing (11) is an electrode element (20) having a charging element (26) which defines with the housing (11) a charging chamber (31) adjacent the gas inlet (15) and having an electrostatic force element (25) which defines with the housing (11) a collecting chamber (32) adjacent the gas outlet (16). The electrode element (20) is maintained at a voltage differential from the housing (11) for charging particulate in the charging chamber (31) and subjecting charged particulate in the collecting chamber (32) to an electrostatic force, whereby charged particulate is forced outwardly toward the housing (11) and removed from the gas flow. In yet another embodiment, a helical vane structure (33) is mounted in the housing (11) at the gas inlet (15), whereby the particulate in gas is subjected to a centrifugal force and forced outwardly towards the housing (11), the centrifugal force cooperating with the electrostatic force to enable efficient removal of particulate from a flow of particulate-laden gas.