Conventional vape devices such as these provide: no control as to the ramping up and / or down of power applied to the
heating element; no control as to the metering of how much vapor is produced when the switch is closed; no control as to how particular fluids or oils are to be heated to produce vapor; and no control to prevent unauthorized use of the vape device by anyone other than the user of the vape device.
Further, storing the vape device or cartridge in a particular orientation can be cumbersome.
When the atomizer heats the fluid, the fluid may leak through the air intake path out of the cartridge or vape device.
Further, if the user inhales before the fluid is vaporized, the user may inhale spurts of oil droplets.
However, this introduces a fibrous material to the vape device or cartridge that can burn and be contaminated in the production environment.
The process of wrapping the atomizer with a layer of cotton is fine detailed work that requires such a high degree of manual dexterity that the factory workers use their bare fingers to perform the procedure, which is unhygienic.
These small circular openings trap air bubbles that prevent flow of the fluid to the atomizer, which is commonly known as “air-lock.” The positioning of the circular openings also frequently leads to oil waste within the cartridge or vape device.
In particular, there may be differences in thermally induced chemical reactions or metabolic transformations between the vaping of dry material and the vaping of fluid that may affect the user in a different manner.
This process is relatively cumbersome and inconvenient for the user and often leads to loss of material through
spillage and / or sticking to the grinder.
Further, if the dry material is
cannabis, it is difficult to control the
dose of active compounds consumed due to variations of the
cannabinoid profile from strain to strain, batch to batch, and based on the location where the
plant is grown.
While there are a few conventional vape devices that attempt to determine the dosage of a vaporized payload, they use inaccurate methods that offer poor
dose metering performance, e.g., using the known volume and strain of the payload being vaporized to assume the dosage.
As such, medicinal patients are unsure of the dosage that they have taken at any given time, which limits the
repeatability and
efficacy of the
drug's effects.
Also, recreational users may experience different effects (desirable and undesirable) depending on dosage.
However, this
documentation is easily separated from the cartridge and is likely to be discarded, lost, or potentially even tampered with.
If the user possesses multiple cartridges, it is possible that he or she will misidentify the cartridges and may not get the expected experience from a particular cartridge.
Further, a medical user may not receive the desired relief of his or her symptoms with a particular cartridge.
If a conventional cartridge is installed on a control
assembly capable of supplying too much power, there is the possibility of the cartridge being damaged, the payload being burnt, or the user being injured.
Conventional vape devices that use a two-pin connector to join a cartridge and control
assembly are not able to control the atomizer temperature across all operating
modes (e.g., low to high
airflow, low to high ambient temperature,
battery voltage, etc.).
Using these parameters, a rudimentary form of
temperature control can be achieved, but it is very limited in accuracy.
In particular, there is generally no accounting for air flow, ambient temperature, and / or current atomizer temperature, which can dramatically
impact the atomizer temperature when in use.
The issue of localized atomizer temperature is particularly problematic with dried
cannabis products because the atomizer surface area in contact with the payload is large in comparison to liquid payloads.
Further exacerbating the problem is the fact that not all of the
cannabis payload is directly in contact with the atomizer due to the volume of cannabis used (typically on the order of 1 cubic
centimeter).
In this case, it is likely that the payload in direct contact with the atomizer may begin to burn while the payload farther from the atomizer will remain in an area of low heat and potentially not vaporize.
This leads to
smoke and wasted product, neither of which is desired.
If the air is too hot, the payload will burn.