0415121-A1 is referenced by 6 patents and cites 3 patents.

A skimming device (14) for oil-extraction equipment for tanks (3) of coolant liquids with oil in suspension. comprising a support (15) carrying a hollow cylindrical body of adjustable height (20) on which a float member (23) is slidable axially, the float member having an upper wall (24) which communicates with the cavity of the cylindrical body and is adapted to position itself at the correct level (L1,L2) for skimming the suspended oil from the liquid in the tank.

Title
A skimming device for oil-extraction equipment for tanks of coolant fluids with oil in suspension.
Application Number
EP19900114948 19900803
Publication Number
0415121 (A1)
Application Date
August 3, 1990
Publication Date
March 6, 1991
Inventor
Galletti Alfonso
IT
Assignee
Gi Pi
IT
IPC
B01D 17/025
B01D 17/025
B01D 17/02
B01D 17/025
B01D 17/02
View Original Source Download PDF