US 11,655,133 B2
Cap sterilizer, content filling system, cap sterilization method, and content filling method
Atsushi Hayakawa, Tokyo-to (JP); Masatoshi Takagi, Tokyo-to (JP); and Hitoshi Takaku, Tokyo-to (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo-to (JP)
Filed on Mar. 9, 2021, as Appl. No. 17/196,333.
Application 17/196,333 is a division of application No. 16/306,527, granted, now 10,974,941, previously published as PCT/JP2017/020279, filed on May 31, 2017.
Claims priority of application No. JP2016-109230 (JP), filed on May 31, 2016; application No. JP2016-120994 (JP), filed on Jun. 17, 2016; application No. JP2016-121000 (JP), filed on Jun. 17, 2016; application No. JP2016-148789 (JP), filed on Jul. 28, 2016; application No. JP2016-148802 (JP), filed on Jul. 28, 2016; application No. JP2016-148813 (JP), filed on Jul. 28, 2016; application No. JP2016-148817 (JP), filed on Jul. 28, 2016; and application No. JP2017-018936 (JP), filed on Feb. 3, 2017.
Prior Publication US 2021/0188611 A1, Jun. 24, 2021
Int. Cl. B67C 7/00 (2006.01); B65B 55/10 (2006.01); B67B 3/00 (2006.01); A61L 2/18 (2006.01); A61L 2/20 (2006.01)
CPC B67C 7/0073 (2013.01) [A61L 2/18 (2013.01); A61L 2/20 (2013.01); A61L 2/208 (2013.01); B65B 55/10 (2013.01); B67B 3/003 (2013.01); B67C 7/004 (2013.01); A61L 2202/20 (2013.01)] 6 Claims
OG exemplary drawing
 
6. A cap sterilization method comprising:
feeding a cap from an infeed chamber to a sterilant atomizing chamber;
spraying a sterilant against the cap in the sterilant atomizing chamber; and
air rinsing the cap, sprayed with the sterilant in the sterilant atomizing chamber, in an air rinse chamber,
wherein the infeed chamber, the sterilant atomizing chamber, and the air rinse chamber are arranged in this order along a conveying direction of the cap,
at least the infeed chamber and the air rinse chamber are exhausted,
an interior of the infeed chamber, an interior of the sterilant atomizing chamber and an interior of the air rinse chamber are maintained at a positive pressure, and
an exhaust pressure in the infeed chamber and an exhaust pressure in the air rinse chamber are higher than an exhaust pressure in the sterilant atomizing chamber, or the sterilant atomizing chamber is not exhausted.