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:
Dec. 16, 1986
Filed:
Aug. 29, 1985
William F Revelt, Bay City, TX (US);
John B Prows, Orange, TX (US);
Fred M Thomson, Wilmington, DE (US);
Hugh E Avery, Hitchcock, TX (US);
Allied Industries, Inc., Houston, TX (US);
Abstract
A gravity blending apparatus and methods of gravity blending involving an improved venting arrangement, by means of which an increase in the 'thru-put' flow rate of a gravity blender apparatus is provided by venting the underside of an inverted cone within a collecting chamber to one or more low pressure zones. Advantageously, such venting may proceed progressively from the underside of an inverted cone within the collecting chamber to a low pressure zone within the upper portion of the collecting chamber, with venting continuing by way of auxiliary or further venting conduit means to the underside of a material distributing, inverted cone in the lower portion of the base of the main bin of the gravity blender. A gap between the terminus of a central, lower most outlet of the main bin and the apex of the inverted cone within the collecting chamber may be selectively adjusted so as to regulate the relative flow rates of the central, lowermost outlet of the main bin and the peripheral down-comers contained within the main bin which are located circumferentially outwardly of the central outlet and draw material from above the main outlet within the main bin. Such adjusting is able to be effected externally of the main bin and collecting chamber so as to avoid the necessity to obtain access to the interior of these components.