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:
Oct. 09, 1984
Filed:
Dec. 07, 1982
Applicant:
Inventor:
David J McCaffrey, Cheltenham, GB;
Assignee:
Coal Industry (Patents) Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D / ;
U.S. Cl.
CPC ...
209166 ; 252 61 ;
Abstract
In the froth flotation of coal, especially coking coal, improved results are observed when using as a collector an oil distillate cut within the range 80.degree. to 250.degree. C., containing less than 20% by weight of naphthenes, less than 20% by weight of aromatic content and more than 60% by weight of n-alkanes and branched-alkanes. Preferably, the collector is used with a polyglycol ether 'frother'.
McCaffrey, David. (1984). Froth flotation (U.S. Patent No. 4476013). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4476013
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile