Patent ID: 9004875
Filing Date: 2015-04-14
Classification: E04H,F03D,F16B,Y02E,Y10S

Abstract:
1. A flange including a longitudinal axis, comprising: a neck extending substantially along the longitudinal axis of the flange defining a first direction; a flange plate connected to the neck and including a connecting portion configured to hold a connecting device at a connecting side, the flange plate further including a non-connecting side being at a radially different location than the connecting side; the flange including a first plane defining a first level of the neck, a second plane defining a second level where the flange plate and the neck are connected, and a third plane defining a third level of the flange plate, wherein the first plane, the second plane and the third plane extend substantially perpendicular to the longitudinal axis of the flange; and a ring-shaped bulge on the non-connecting side of the flange, wherein the bulge extends from a fourth level of the neck to the third plane, the fourth level being located between the first plane and the second plane, a merge point of the bulge and the neck comprises a flange fillet, and an outer diameter of the bulge is substantially constant along the non-connecting side.