US 11,970,056 B2
Plastic tank
Rainer Puchleitner, Graz (AT); Manuel Bauer, Graz (AT); Gregor Stiendl, St. Ruprecht (AT); and Harald Humenberger, St. Ruprecht (AT)
Assigned to MAGNA Energy Storage Systems GesmbH, Sinabelkirchen (AT)
Filed by MAGNA Energy Storage Systems GesmbH, Sinabelkirchen (AT)
Filed on Feb. 18, 2022, as Appl. No. 17/675,362.
Claims priority of application No. 21160925 (EP), filed on Mar. 5, 2021.
Prior Publication US 2022/0281313 A1, Sep. 8, 2022
Int. Cl. B60K 15/03 (2006.01); B60K 15/04 (2006.01)
CPC B60K 15/03177 (2013.01) [B60K 15/04 (2013.01); B60K 2015/03447 (2013.01); B60K 2015/0346 (2013.01); B60K 2015/03493 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A plastic tank for a motor vehicle, the plastic tank comprising:
a container wall composed of plastic;
an opening arranged in the container wall;
a removable cover member operable to close and open the opening; and
a stiffening ring member, composed of an injection-moulded plastic, embedded into an edge of the container wall that surrounds the opening, the stiffening ring member being operable to directly or indirectly support the cover member when the opening is closed;
a welding pad member, fixed in the container wall, and operable to fasten at least a portion of the stiffening ring member to the container wall; and
a threaded ring member, retained by the stiffening ring member, and operable to support the cover member when the opening is closed and facilitate removal of the cover member when the opening is opened.