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:
Mar. 13, 1990
Filed:
Feb. 02, 1989
Kermit D Paul, Allentown, PA (US);
Fuller Company, Lehigh Valley, PA (US);
Abstract
An apparatus and method are provided for blending solid particulate material. The invention employs equipment for enabling simultaneous drain and recycle, for selective top filling or bottom filling of the vessel, and for providing a bypass line for removing plugs which may form in the lift pipe. The apparatus includes a continuous blending unit which includes a sensor to measure the amount of material in the vessel by measuring its height or weight, and a controller, responsive to the sensor, for controlling the fresh particulate material feed rate and/or the material withdrawal rate so that the fresh material supply rate and the blended material withdrawal rate are proportioned to control the material level within the vessel to a desired level.