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:
Jul. 04, 1989
Filed:
Sep. 04, 1987
William A Howell, Slidell, LA (US);
Other;
Abstract
A filter system that is portable and has no moving parts usable for industrial purposes to filter dry fluid substances such as Barite, Hemitite, cement and the like. Within a filter housing are a cyclone separator for removing heavier substance and a fine filter for filtering lighter powdery substance. The inlet to the housing is connectable to the vent of a storage receptacle to which substance is being transferred under the power of a blower. The blower creates the stream that causes substance to flow through the filter system so that no other power means is required. To purge the filter system, a normally capped outlet is connected directly to the storage receptacle and a vent port from the filter housing is connected directly to the blower means. The blower means is operated in spurts to create bursts of air in a direction opposite to the filtering direction to dislodge powder from the fine filter and blow the powder and heavier particles from the filter housing directly into the storage receptacle. Upon completion of the entire operation, the portable filter system can be transported to another site.