US 11,653,666 B2
Caffeine reduction apparatus and method of manufacturing coffee grounds powder using same
Hea Young Park, Daejeon (KR)
Assigned to Harmony Social Cooperative Association, Daejeon (KR)
Filed by Harmony Social Cooperative Association, Daejeon (KR)
Filed on Apr. 12, 2022, as Appl. No. 17/718,940.
Claims priority of application No. 10-2021-0051479 (KR), filed on Apr. 21, 2021.
Prior Publication US 2022/0338499 A1, Oct. 27, 2022
Int. Cl. A23F 5/20 (2006.01); B01F 23/53 (2022.01); B01F 27/112 (2022.01); B01F 27/191 (2022.01); B01F 35/92 (2022.01); B01F 35/21 (2022.01); B01F 27/70 (2022.01); B01F 35/91 (2022.01); B01F 35/221 (2022.01); B01F 101/06 (2022.01); B01F 35/90 (2022.01)
CPC A23F 5/20 (2013.01) [B01F 23/53 (2022.01); B01F 27/112 (2022.01); B01F 27/191 (2022.01); B01F 27/70 (2022.01); B01F 35/2115 (2022.01); B01F 35/2132 (2022.01); B01F 35/2212 (2022.01); B01F 35/2215 (2022.01); B01F 35/91 (2022.01); B01F 35/92 (2022.01); B01F 2035/98 (2022.01); B01F 2035/99 (2022.01); B01F 2101/06 (2022.01)] 3 Claims
OG exemplary drawing
 
1. A caffeine reduction apparatus comprising:
a main housing provided with an inlet and outlet pipe such that water flows inside the main housing;
a mixing portion comprising an accommodating portion through which coffee grounds are input inside the accommodating portion, and comprising a blade configured to be rotated inside the accommodating portion such that the coffee grounds are mixed;
a driving portion configured to rotate the blade;
an ultraviolet ray emitting portion positioned at an upper portion of the main housing and mounted at an inner side surface of a door that seals an inner portion of the mixing portion, the ultraviolet ray emitting portion being configured to emit ultraviolet rays toward the mixing portion;
an additive input portion for inputting at least one of hydrogen peroxide, hydrochloric acid, sodium hydroxide, xanthan gum, and flour to an inside of the main housing;
a heating portion configured to heat the water or the mixing portion;
a blower configured to inhale air inside the mixing portion and to discharge the air to an outside;
a heat exchanger configured to cool the air inhaled through the blower;
a water level controlling portion configured to check a water level inside the mixing portion;
a temperature sensing portion configured to sense a temperature;
a pH sensing portion configured to sense a pH; and
a control portion configured to:
operate the water level controlling portion such that the water is supplied inside the mixing portion at a predetermined level that the coffee grounds accommodated in the accommodating portion are submerged in the water,
operate the heating portion while the temperature sensing portion senses the temperature inside the mixing portion such that the water in which the coffee grounds are submerged is heated and caffeine is eluted from the coffee grounds,
operate the ultraviolet ray emitting portion to emit the ultraviolet rays to the water in which the caffeine is eluted from the coffee grounds such that the caffeine included in the water is decomposed by the ultraviolet rays,
operate the additive input portion to control an amount of an additive, including at least one of the hydrogen peroxide, the hydrochloric acid, and the sodium hydroxide, input into the water in which the caffeine is decomposed by the ultraviolet rays while the pH sensing portion connected to the control portion senses the pH inside the mixing portion such that the pH inside the mixing portion is maintained to a predetermined level,
operate the water level controlling portion to discharge the water in which the additive is added and the heating portion to heat the mixing portion such that the coffee grounds remained in the mixing portion are dried, and
control the additive input portion to input at least one of the xanthan gum and the flour to coffee grounds remained and dried in the mixing portion.