Patent ID: 6709025
Filing Date: 2004-03-23
Classification: B01D,B01L,F16L

Abstract:
A vapor lead-through system for a rotary evaporator including a rotary evaporator vessel, a stationary cooler, a vapor lead-through connecting the evaporator vessel to the cooler, and a drive part for rotating the evaporator vessel, the vapor-lead through comprisinga connection piece drivable by the drive part, said connection piece having a longitudinal axis and being connected to the evaporator vessel, a single vapor lead-through tube, said connection piece being drivable with the drive part and being connected or connectable to the evaporator vessel, said vapor lead-through tube being arranged within a seal at its cooler side end, said seal being stationary with respect to the cooler, and having a longitudinal axis, an evaporator end and a cooler end, and a stationary seal surrounding said cooler end of said tube, said seal comprising a deformable lip, and further comprising an annular gap between said yapor lead-through tube and said drive part adjacent the evaporator end of the tube, thus permitting the vapor lead-through tube to deviate radially with respect to the drive part to compensate for eccentric movement of the connection piece.