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:
Feb. 08, 1983
Filed:
Oct. 03, 1980
James P Kean, Jr, Maumee, OH (US);
Process Control Corporation, Atlanta, GA (US);
Abstract
The bulk material receiver and dispenser includes a hopper with a lower material outlet opening and an upper material and air inlet opening. The upper portion or 'bonnet' of the hopper includes a pair of air passageways with a filter in each passageway, and a vacuum pump and valve are connected to the air passageways. When placed in operation, the vacuum pump induces a flow of air inwardly through one air passageway and out of the other passageway to back wash one of the air filters, and after a short time lapse, air is drawn through both air passageways to induce a flow of bulk material and air into the hopper. When a desired amount of bulk material has accumulated in the hopper, the other air passageway and filter are opened to the atmosphere and a stream of air from the atmosphere back washes the other filter.