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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.:

US 12311288 B1

PDFFull Text
Date of Patent:
May. 27, 2025

Filed:

Nov. 03, 2023

E-vaping device cartridge with superabsorbent polymer

Applicant:

Altria Client Services Llc, Richmond, VA (US);

Inventors:

Georgios Karles, Richmond, VA (US);

Erica Sena, Midlothian, VA (US);

Assignee:

Altria Client Services LLC, Richmond, VA (US);

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Thor S Campbell

Int. Cl.
CPC ...
A24F 40/42 (2020.01); A24F 40/10 (2020.01); A24F 40/70 (2020.01); B01D 15/22 (2006.01); B01J 20/26 (2006.01); B05D 5/00 (2006.01); B05D 7/22 (2006.01); B05D 7/24 (2006.01); B65D 81/26 (2006.01); D03D 15/00 (2021.01); D03D 15/283 (2021.01); D03D 15/50 (2021.01);
U.S. Cl.
CPC ...
B01D 15/22 (2013.01); A24F 40/42 (2020.01); B01J 20/267 (2013.01); B05D 5/00 (2013.01); B05D 7/227 (2013.01); B05D 7/24 (2013.01); B65D 81/264 (2013.01); D03D 15/00 (2013.01); D03D 15/283 (2021.01); D03D 15/50 (2021.01); A24F 40/10 (2020.01); A24F 40/70 (2020.01);
Abstract

A cartridge for an e-vaping device includes a reservoir configured to hold pre-vapor formulation, a vaporizer assembly configured to draw at least some of the pre-vapor formulation from the reservoir and vaporize the drawn pre-vapor formulation to form a vapor, and a superabsorbent polymer configured to absorb free water from pre-vapor formulation held in the reservoir. The superabsorbent polymer includes a cross-linked polyacrylate copolymer that is substantially inert to the pre-vapor formulation. The superabsorbent polymer may be included in a layer on one or more surfaces in the cartridge. The layer may include the superabsorbent polymer and a binder. The superabsorbent polymer may be included with the pre-vapor formulation in a formulation mixture. The superabsorbent polymer may be included in an interior of at least one element comprising the cartridge. The superabsorbent polymer may be included in a separate compartment in the reservoir.

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