Patent ID: 11959263
Assignee: RAVANI S.R.L.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 2:
3. The drain according to claim 2, wherein the head comprises a bushing slidingly fitted on the stem and an upper portion, of the head, fitted on the bushing with a telescopic coupling, wherein said upper portion of the head carries out the closing of the mouth in the raised position,
wherein the bushing and the upper portion of the head of the plug are integrally movable along the longitudinal axis between the raised position and the lowered position of the head, and
the bushing returns inside the upper portion of the head thus allowing the further lowering of the upper portion of the head in the body of the drain, when the bushing reaches a descent stop, corresponding to the overflow mechanism being active and the mouth being open.