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. 21, 1986
Filed:
Oct. 22, 1982
Robert T Nelson, Oklahoma City, OK (US);
Other;
Abstract
A dust collector including a plurality of filter units and an arrangement for periodically providing reverse flow through a single filter unit to remove dust therefrom while maintaining normal flow of air through the remaining units. The filter units are connected to a plurality of ducts, and a centrifugal fan is provided for effecting reverse flow of air through the ducts sequentially to remove collected dust from the filter units. A transverse duct extends transversely of and contiguous to the first-mentioned ducts. A plurality of openings are provided for selective communication between the transverse duct and the first-mentioned ducts. A control vane is provided within each of the first-mentioned ducts and is movable between a first position wherein it blocks the corresponding opening to permit normal flow of air through that duct and a second position wherein it blocks normal flow of air and directs air from the centrifugal fan in a reverse flow through the duct to remove the dust from the filter unit connected thereto. A rotatable shaft having a plurality of notched discs mounted thereon is provided for actuating the movable vanes. The notched portions of the discs are angularly displaced from each other to effect sequential movement of the vanes.