US 12,304,632 B2
Tank assembly and helicopter
Jason Schellaars, Lake MacDonald (AU)
Assigned to Helitak Fire Fighting Equipment Pty Ltd, Lake MacDonald (AU)
Filed by Helitak Fire Fighting Equipment Pty Ltd, Lake MacDonald (AU)
Filed on Jul. 13, 2022, as Appl. No. 17/864,286.
Application 17/864,286 is a continuation of application No. PCT/AU2020/050612, filed on Jun. 17, 2020.
Claims priority of application No. 2020900130 (AU), filed on Jan. 17, 2020.
Prior Publication US 2022/0355931 A1, Nov. 10, 2022
Int. Cl. B64D 1/22 (2006.01); A62C 3/02 (2006.01); B64D 1/16 (2006.01); B65D 88/24 (2006.01); B65D 90/00 (2006.01); B65D 90/62 (2006.01)
CPC B64D 1/22 (2013.01) [A62C 3/0235 (2013.01); B64D 1/16 (2013.01); B65D 88/24 (2013.01); B65D 90/0033 (2013.01); B65D 90/623 (2013.01); B65D 2590/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tank assembly for a helicopter, the tank assembly comprising:
a retractable tank for storing liquid or other substances, the retractable tank comprising an upper frame structure; and
an attachment mechanism comprising:
a linking assembly having a head connector, a tail connector attached to the upper frame structure, and an adjustment mechanism disposed between the head connector and the tail connector, the adjustment mechanism being rotatably manipulable to adjust a distance between the head connector and the tail connector; and
a rod pivotably attached to the head connector of the linking assembly and extending upwardly therefrom to an upper end portion, the upper end portion of the rod being configured to attach to a main rotor transmission of the helicopter to suspend therefrom.