US 12,078,274 B2
Connection unit for connecting fluid lines
Sören Schröter, Königsberg (DE); and Johannes Barfuss, Königsberg (DE)
Assigned to Fränkische Industrial Pipes GMBH & CO. KG, Königsberg (DE)
Appl. No. 17/919,366
Filed by Fränkische Industrial Pipes GMBH & CO. KG, Königsberg (DE)
PCT Filed Mar. 16, 2021, PCT No. PCT/EP2021/056670
§ 371(c)(1), (2) Date Oct. 17, 2022,
PCT Pub. No. WO2021/209212, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 10 2020 204 825.8 (DE), filed on Apr. 16, 2020.
Prior Publication US 2023/0184361 A1, Jun. 15, 2023
Int. Cl. F16L 37/14 (2006.01); F16L 37/098 (2006.01)
CPC F16L 37/144 (2013.01) [F16L 37/0982 (2013.01); F16L 37/0985 (2013.01); F16L 2201/10 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A connection unit for connecting fluid lines, comprising:
a plug-in unit, wherein the plug-in unit is connectable to a first fluid line which does not belong to the connection unit, the plug-in unit defining a first fluid flow channel in an interior of the plug-in unit, and
a receiving unit, wherein the receiving unit is connectable to a second fluid line which does not belong to the connection unit, the receiving unit defining a second fluid flow channel in an interior of the receiving unit,
wherein the plug-in unit and the receiving unit are connectable to one another so that a fluid connection is established between the first fluid flow channel and the second fluid flow channel,
wherein the connection unit further comprises a release element, wherein the release element is transferrable from a holding state to a release state upon insertion of the plug-in unit into the receiving unit up to a predetermined depth, and
wherein the connection unit further comprises an indicator element formed separately from the release element, wherein the indicator element locked by the release element when the release element is in the holding state, and wherein the indicator element is detachable from the rest of the connection unit when the release element is in the release state.