Patent ID: 9533896
Date: 2017-01-03
CPC Classifications: A61L,C02F

Claim:
1. A sterilizer for sterilizing a liquid, comprising: a first pipe having a closed end and an opposite, open end; a second pipe disposed in the first pipe and having a light transmitting property to transmit ultraviolet (UV) light; and a plurality of UV LEDs engaged to and arranged in the first pipe and configured to provide UV light to a fluid flowing through the inside of the second pipe or the space between the first and second pipes to cause sterilization of the fluid, wherein the plurality of UV LEDs are arranged in a zigzag pattern on the inner wall of the first pipe in consideration of beam angles of UV beams emitted by the UV LEDs in order to provide desired UV illumination coverage within the second pipe, wherein the second pipe includes two or more inner pipes placed inside the second pipe.