US 11,950,638 B2
Vapor delivery systems and methods
Christopher B. Harrison, Vashon, WA (US); Steven A. Rodriguez, Seattle, WA (US); Gregory A. Kirkos, Seattle, WA (US); Alga Lloyd Nothern, III, Seattle, WA (US); Dainia Edwards, Issaquah, WA (US); Joseph N. Kennelly Ullman, Seattle, WA (US); and Eric W. Healy, Seattle, WA (US)
Assigned to Zenigata LLC, Kirkland, WA (US)
Filed by Zenigata LLC, Kirkland, WA (US)
Filed on Apr. 28, 2023, as Appl. No. 18/309,635.
Application 18/309,635 is a continuation of application No. 17/889,266, filed on Aug. 16, 2022, granted, now 11,666,088.
Application 17/889,266 is a continuation of application No. 17/181,871, filed on Feb. 22, 2021, granted, now 11,425,931.
Application 17/181,871 is a continuation of application No. 16/777,570, filed on Jan. 30, 2020, granted, now 10,959,464.
Application 16/777,570 is a continuation of application No. 16/365,057, filed on Mar. 26, 2019, granted, now 10,588,356.
Application 16/365,057 is a continuation of application No. 16/137,348, filed on Sep. 20, 2018, abandoned.
Application 16/137,348 is a continuation of application No. 15/418,435, filed on Jan. 27, 2017, abandoned.
Claims priority of provisional application 62/288,314, filed on Jan. 28, 2016.
Prior Publication US 2023/0263215 A1, Aug. 24, 2023
Int. Cl. A24F 7/02 (2006.01); A24F 40/40 (2020.01); A24F 40/46 (2020.01); A24F 40/48 (2020.01); A24F 40/485 (2020.01); A24F 40/51 (2020.01); A24F 40/10 (2020.01); A24F 40/44 (2020.01)
CPC A24F 7/02 (2013.01) [A24F 40/40 (2020.01); A24F 40/46 (2020.01); A24F 40/48 (2020.01); A24F 40/485 (2020.01); A24F 40/51 (2020.01); A24F 40/10 (2020.01); A24F 40/44 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A vaporization device for delivering vaporized material for inhalation by a user, the vaporization device comprising:
an air intake through which air enters the vaporization device during an inhalation event;
an outlet through which vapor is withdrawn from the vaporization device during the inhalation event;
a vaporization chamber for receiving material to be vaporized;
a heater positioned between the air intake and the vaporization chamber, and upstream of the vaporization chamber with respect to a flow of the air through the vaporization device durating the inhalation event, and operable to heat the air which passes through the heater during the inhalation event as the air moves from the air intake toward the outlet;
a temperature sensor positioned downstream of the heater with respect to the flow of the air through the vaporization device durating the inhalation event and operable to sense a temperature of the air downstream of the heater;
a control system operatively coupled to the temperature sensor and the heater to provide a closed loop control of heat generated by the heater to maintain a temperature of the air delivered to the vaporization chamber at, or within a predetermined tolerance of, a desired vaporization temperature for at least a majority of a duration of the inhalation event;
a nozzle block supporting the heater, the nozzle block positioned upstream of the vaporization chamber and configured for heat management within the vaporization device;
a vapor concentration measurement device operatively coupled to the control system to detect the vapor concentration, the vapor concentration measurement device comprising:
a light source positioned at one end of the vaporization chamber; and
one or more sensors positioned at other end of the vaporization chamber, a first sensor of the one or more sensors being configured to measure a change in an amount of light from the light source reaching the first sensor.