US 2026/0226883 A1Published application

Flange connection

AssigneeFreudenberg Flow Technologies LLC

InventorPrzemyslaw LUTKIEWICZ

Life of this patent

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Abstract

A flange connection system, including a pair of flange rings each including a neck portion and a radially extending flange portion. The radially extending flange portion includes a distal face including a contact surface that protrudes from a remainder of the distal face. The radially extending flange portion includes a plurality of circumferentially spaced bolt holes extending parallel to a center axis. The distal face including a first seal pocket radially inward of the contact surface and a second seal pocket radially outward of the contact surface, wherein in an assembled condition, the contact surface of the first flange ring is disposed against the contact surface of the second flange ring, a first seal ring is disposed in the first seal pockets, and a second seal ring is disposed in the second seal pockets.

Claims17

Dependent claims

A flange connection system, comprising:

a first flange ring and a second flange ring each including a neck portion and a radially extending flange portion extending radially inward from the neck portion, the radially extending flange portion including a proximal face facing in a direction of the neck portion and a distal face facing in a direction opposite to the neck portion, the distal face including a contact surface that protrudes relative to a remainder of the distal face, the radially extending flange portion including a plurality of circumferentially spaced bolt holes extending parallel to a center axis, the distal face including a first seal pocket radially inward of the contact surface and a second seal pocket radially outward of the contact surface, wherein in an assembled condition, the contact surface of the first flange ring is disposed against the contact surface of the second flange ring, a first seal ring is disposed in the first seal pocket, a second seal ring is disposed in the second seal pocket and a plurality of bolt assemblies are inserted through the plurality of bolt holes and tightened to bring an edge portion of the flange portion in contact with one another and to compress the first seal ring and the second seal ring.

Dependencies are inferred from the claim text.

Facts

Application: 19/631,287Filed 27 Mar 2026
Priority: 27 Dec 2021
Published: 6 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

F03D 13/20
Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components: arrangements for…
F03D 13/205
Towers: connection means, e.g. joints between segments
E04H 12/085
Of metal: details of flanges for tubular masts
F16B 7/18
Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections: using screw-thread elements

Family

Application17/562,255Division · filed 27 Dec 2021
Application19/631,287Division
US 12,662,989 B2Related patent
US 2023/0204058 A1Published application
US 2026/0226883 A1This patent

From the US filing history. Foreign family members aren’t listed.