US 12,305,810 B2
Pressure vessel liner and method for manufacturing pressure vessel liner
Yasuyuki Hakamata, Saitama (JP); Ken Kamiya, Saitama (JP); Junya Yoshioka, Saitama (JP); and Akihiro Yashima, Saitama (JP)
Assigned to YACHIYO INDUSTRY CO., LTD., Saitama (JP)
Appl. No. 18/568,098
Filed by YACHIYO INDUSTRY CO., LTD., Saitama (JP)
PCT Filed May 31, 2022, PCT No. PCT/JP2022/022055
§ 371(c)(1), (2) Date Dec. 7, 2023,
PCT Pub. No. WO2022/259906, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 2021-096316 (JP), filed on Jun. 9, 2021.
Prior Publication US 2024/0263741 A1, Aug. 8, 2024
Int. Cl. F17C 1/16 (2006.01); B29C 45/00 (2006.01); B29C 45/14 (2006.01); B29L 31/00 (2006.01)
CPC F17C 1/16 (2013.01) [B29C 45/006 (2013.01); B29C 45/14622 (2013.01); B29L 2031/7156 (2013.01); F17C 2201/0109 (2013.01); F17C 2203/013 (2013.01); F17C 2203/0604 (2013.01); F17C 2203/0619 (2013.01); F17C 2203/066 (2013.01); F17C 2209/2109 (2013.01); F17C 2209/222 (2013.01); F17C 2209/232 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A pressure vessel liner made of resin and having a pair of first liner members, in a bottomed cylindrical shape, joined with a second liner member in a bottomless cylindrical shape, wherein
the second liner member has joint sections, opposing each other, at both ends in an axial direction of the second liner member, and the second liner member is respectively joined to each of the pair of first liner members at the joint sections, and
the second liner member includes a midsection, the midsection constituting a middle portion of the second liner member,
the second liner member having opposing side portions on opposing sides of the midsection;
the second liner member has a wall with varying wall thickness, the wall thickness of the wall varying, on the opposing sides of the midsection, so as to gradually decrease in thickness from the midsection outward, in an axial direction, toward the respective opposing joint sections, so as to gradually decrease over at least a portion of each side portion on the opposing sides of the midsection.