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:
May. 07, 2002
Filed:
Oct. 27, 2000
Gerard Gasquet, Les Pennes Mirabeau, FR;
Christian Cloue, Gardanne, FR;
Aluminium Pechiney, Paris Cedex, FR;
Abstract
Process for conveyance of a powder material ( ) in a potential fluidization hyperdense bed using a device comprising at least one air pipe ( ) comprising a lower duct ( ) for circulation of a fluidization gas (G), an upper duct ( ) for circulation of the powder material ( ), the two ducts being separated by a porous wall ( ), at least one pipe ( ) supplying gas (G) and a balancing column ( ) in which the filling height (h) balances the potential fluidization pressure (p ), characterized in that a bubble (B , B ) of pressurized gas is created in the upper duct ( ) in the air pipe ( ). This bubble is reliably located in the upper part ( ) of the upper duct ( ) of the said air pipe ( ). Device to implement this process and to regulate the pressure of the gas bubble.