20140346170 | UNIVERSAL FILLER CAP ASSEMBLY - A universal filler cap assembly having a base member receiving an elastic bushing, a collar, and a cap. The base member has an annular abutting surface and a threaded stem, and the cap has a stem with mating threads. As the cap is threaded onto the base member, the bushing is compressed between the abutting surface and the collar, causing the elastic bushing to bulge in a lateral direction. This bulge presses against the internal surface of the neck of a tank, forming a fluid-tight seal. When the cap is unthreaded from the base member, the compressive force on the bushing is released and it returns to its original shape, snugly fitting around the stem of the base member. | 11-27-2014 |