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. 28, 2012
Filed:
Nov. 11, 2008
Applicant:
Charles Falinower, Carpentras, FR;
Inventor:
Charles Falinower, Carpentras, FR;
Assignee:
Lafarge Platres, Avingnon Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gypsum dryer/calciner includes a calcining space; a first pipe having an inlet connected to a source of hot gases and an outlet emerging in the calcining space; a second pipe having an inlet connected to a source of gypsum and an outlet emerging in the calcining space, the second pipe being concentric with the first pipe; and a force-feeding screw positioned at least partially in the second pipe, the screw carrying the gypsum along in the calcining space.