US 12,111,012 B2
Composite tank
Christopher Kampf, Moosup, CT (US); Jeffrey Neto, Cumberland, RI (US); Ken Cerpovicz, Warwick, RI (US); and Jody McKinley, Mt. Vernon, OH (US)
Assigned to AMTROL LICENSING INC., West Warwick, RI (US)
Filed by AMTROL LICENSING INC., West Warwick, RI (US)
Filed on Feb. 3, 2022, as Appl. No. 17/591,958.
Application 17/591,958 is a continuation of application No. 16/697,462, filed on Nov. 27, 2019, granted, now 11,274,793.
Prior Publication US 2022/0154881 A1, May 19, 2022
Int. Cl. F17C 1/08 (2006.01)
CPC F17C 1/08 (2013.01) [F17C 2201/0114 (2013.01); F17C 2203/012 (2013.01); F17C 2203/0673 (2013.01); F17C 2205/0107 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A tank comprising:
a polymeric upper dome having a neck with an inner surface defining a through passage;
a polymeric lower dome having a neck with an inner surface defining a through passage;
a polymeric shell having a first end connected to the upper dome and a second end connected to the lower dome;
a polymeric connection connected to each of the upper and lower domes in the through passages of the necks, the connections being the same as one another and each connection having a body and a flange portion extending from the body, the body having an outer surface that abuts the inner surface of the respective neck and an inner surface defining a through passage with threads for connection of attachments, and the flange portion being received in a corresponding area in the respective upper and lower dome, each corresponding area being an annular pocket having an upper and lower surface; and
a fiberwinding layer around an outer surface of the polymeric upper dome, polymeric lower dome, and polymeric shell,
wherein the upper dome, lower dome, and shell form a cavity, and
wherein the through passage of the upper dome is in communication with the cavity and the through passage of the lower dome is in communication with the cavity.