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:
Mar. 18, 2025
Filed:
May. 09, 2019
Applicant:
Piovan S.p.a., Santa Maria di Sala, IT;
Inventor:
Enrico Bellio, Ponzano Veneto, IT;
Assignee:
PIOVAN S.P.A., Santa Maria di Sala, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B 21/04 (2006.01); B01D 53/26 (2006.01); B29B 9/16 (2006.01); F26B 21/02 (2006.01); F26B 21/08 (2006.01);
U.S. Cl.
CPC ...
F26B 21/04 (2013.01); B01D 53/261 (2013.01); B29B 9/16 (2013.01); F26B 21/028 (2013.01); F26B 21/083 (2013.01); B01D 2259/402 (2013.01); B29B 2009/168 (2013.01);
Abstract
A method and an apparatus for the dehumidification and/or drying of plastic material in the form of granules and/or micro-granules and/or powder and/or flakes or similar are described, with at least one hopper for dehumidifying/drying the plastic material, a generator of a process fluid that passes through the hopper, at least two molecular sieves towers arranged in parallel and operating alternately to dehumidify the process fluid, and at least one source of a regeneration fluid by heating the molecular sieves. The invention allows to improve the energy efficiency of the regeneration cycle of molecular sieves.