US 11,873,793 B2
Flange element, a flange connection comprising such flange elements and a tower structure
Sjur Lassesen, Stabekk (NO)
Assigned to TP-Products AS, Drammen (NO)
Appl. No. 17/290,546
Filed by TP-Products AS, Drammen (NO)
PCT Filed Oct. 24, 2019, PCT No. PCT/EP2019/078966
§ 371(c)(1), (2) Date Apr. 30, 2021,
PCT Pub. No. WO2020/089020, PCT Pub. Date May 7, 2020.
Claims priority of application No. 20181410 (NO), filed on Nov. 2, 2018.
Prior Publication US 2022/0010779 A1, Jan. 13, 2022
Int. Cl. E04H 12/00 (2006.01); F03D 13/25 (2016.01); E04H 12/08 (2006.01); E04H 12/34 (2006.01)
CPC F03D 13/25 (2016.05) [E04H 12/085 (2013.01); E04H 12/34 (2013.01); F05B 2240/912 (2013.01); F05B 2260/301 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A flange element for a flange connection with a longitudinal centre axis, the flange element comprising:
a flange part comprising a front side with a front surface, and
an attachment part adapted for secure attachment to a tubular element comprising a tower section of a tower structure for a wind turbine or a pipe element that is part of an offshore load bearing structure,
wherein the flange part is arranged radially on an inside of the flange element and is provided with a flange wedge and a flange recess, the flange wedge comprising:
a flange wedge surface that is part of the front surface, and
a flange heel comprising a flange heel surface that is part of the front surface,
wherein the flange recess extends around a circumference of the flange part and separates the flange wedge and the flange heel, and
wherein the flange wedge surface makes a wedge surface angle and the flange heel surface makes a heel surface angle with a plane that is perpendicular to the longitudinal centre axis of the flange element.