US-12616243-B2 - E-vaping cartridge

US12616243B2US 12616243 B2US12616243 B2US 12616243B2US-12616243-B2

Abstract

The cartridge includes a housing, an air passage through at least a portion of the housing, a reservoir, the reservoir defining a cavity that is configured to store a pre-vapor formulation, a distal end of the reservoir defining a vent hole, a wick in communication with the air passage and the cavity, and a heater configured to vaporize the pre-vapor formulation in the wick.

Inventors

Ali A. Rostami

Assignees

ALTRIA CLIENT SERVICES LLC

Dates

Publication Date: 20260505
Application Date: 20200813

Claims (1)

1 . A cartridge, comprising: a housing; an air passage through at least a portion of the housing; a reservoir, the reservoir defining a cavity that is configured to store a pre-vapor formulation, a first end of the reservoir defining a vent hole; a filamentary wick in communication with the air passage, a portion of the filamentary wick extending into a second end of the reservoir, the first end and the second end being on opposing ends of the reservoir, the reservoir being cylindrical and the cavity having an internal diameter that is uniform from the first end to the second end of the reservoir, the filamentary wick having a cross-sectional diameter that is equal to the internal diameter; and a heater configured to vaporize the pre-vapor formulation in the filamentary wick.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application is a divisional of U.S. application Ser. No. 15/993,981, filed May 31, 2018, which is a divisional of U.S. application Ser. No. 14/638,830, filed Mar. 4, 2015, and the entire contents of each of which is incorporated herein by reference in its entirety. BACKGROUND OF THE INVENTION Field Example embodiments relate generally to a cartridge. Related Art Conventionally, e-vaping devices utilize a liquid supply reservoir that contains a liquid material. The liquid material is drawn toward a heater via a wick, where the heater vaporizes the liquid material, and the vaporized liquid is entrained in an air flow that is discharged into an adult vaper's mouth for consumption. However, an appreciable amount of liquid material in the liquid supply reservoir is often unused and ultimately wasted, as the liquid material may remain trapped in the reservoir. In particular, as the liquid material is consumed, a vacuum pressure may develop in a distal end of the reservoir, which may impede the liquid material from traveling through the reservoir and being discharged to a heater for vaporization. SUMMARY At least one example embodiment relates to a cartomizer. In one example embodiment, the cartomizer includes a housing body; a hollow inner body extending longitudinally within the housing body; a tubular reservoir configured to store an e-vaping liquid, at least a portion of the tubular reservoir disposed between the housing body and the inner body, the tubular reservoir being wound around the inner body; a wick in fluid communication with the tubular reservoir; and a heater configured to vaporize e-vaping liquid in the wick. In one embodiment, the tubular reservoir is helically wound around the inner body. In one embodiment, the tubular reservoir is made from a flexible material that is collapsible such that a distal end of the tubular reservoir is configured to collapse as the e-vaping liquid is consumed. In one embodiment, the distal end of the tubular reservoir defines a vent hole. In one embodiment, a cross-sectional diameter of the wick is about equal to a cross-sectional diameter of the tubular reservoir. In one embodiment, a distal end of the tubular reservoir defines a vent hole. In one embodiment, a cross-sectional diameter of the tubular reservoir is between about 1.0 mm and about 3.0 mm, and a diameter of the vent hole is between about 100 micrometers and about 300 micrometers. In one embodiment, the tubular reservoir is made from a rigid material. In one embodiment, a cross-sectional diameter of the wick is about equal to a cross-sectional diameter of the tubular reservoir. In one embodiment, a cross-sectional diameter of the wick is about equal to a cross-sectional diameter of the tubular reservoir. In another embodiment, a cartomizer includes a housing body; a hollow inner body extending longitudinally within the housing body; a tubular reservoir configured to store an e-vaping liquid, at least a portion of the tubular reservoir disposed between the housing body and the inner body, the tubular reservoir being made from a flexible material that is collapsible; a wick in fluid communication with the tubular reservoir; and a heater configured to vaporize e-vaping liquid in the wick. In one embodiment, a distal end of the tubular reservoir defines a vent hole. In one embodiment, a cross-sectional diameter of the tubular reservoir is between about 1.0 mm and about 3.0 mm, and a diameter of the vent hole is between about 100 micrometers and about 300 micrometers. In one embodiment, a cross-sectional diameter of the wick is about equal to a cross-sectional diameter of the tubular reservoir. In another embodiment, a cartomizer includes a housing body; a hollow inner body extending longitudinally within the housing body; a tubular reservoir configured to store an e-vaping liquid, at least a portion of the tubular reservoir disposed between the housing body and the inner body, a distal end of the tubular reservoir defining a vent hole; a wick in fluid communication with the tubular reservoir; and a heater configured to vaporize e-vaping liquid in the wick. In one embodiment, a cross-sectional diameter of the wick is about equal to a cross-sectional diameter of the tubular reservoir. In one embodiment, a cross-sectional diameter of the tubular reservoir is between about 1.0 mm and about 3.0 mm, and a diameter of the vent hole is between about 100 micrometers and about 300 micrometers. In another embodiment, a cartomizer includes a housing body; a hollow inner body extending longitudinally within the housing body; a tubular reservoir configured to store an e-vaping liquid, at least a portion of the tubular reservoir disposed between the housing body and the inner body; a wick in fluid communication with the tubular reservoir, a cross-sectional diameter of the wick being about equal to a cross-sectional diameter of the tubular reservoir; and a heater configured to vap