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:
Aug. 13, 2002
Filed:
Jun. 19, 2000
Applicant:
Inventors:
Douglas E. Goldsack, Sudbury, CA;
Allan G. Douglas, Sudbury, CA;
Wayne N. Lidkea, Lively, CA;
William A. Manfred, Garson, CA;
Assignee:
Inco Limited, Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D 3/00 ; E02D 3/12 ;
U.S. Cl.
CPC ...
E02D 3/00 ; E02D 3/12 ;
Abstract
Backfill for a mine contains a main component of conventional backfill material and a flow enhancing superfine material component mixed with the main component. The superfine material component may be a clay, for example, and has a particle size of less than 1 micron. The superfine component is present in an amount of about 0.5 to 1% by weight to best achieve improved flow without plugging in a pipeline.