Patent · US Expired

Vacuum condensation apparatus

US4423766A · kind A · utility

13Cited by

6References

3Claims

0Family size

Assignee

Arthur Pfeiffer Vakummtechnik Wetzlar GmbH · US

Inventors

Karl-Heinz Bernhardt · Solms, DE
Helmut Strzala · Solms, DE

Key dates

Filing date	Nov 12, 1981
Grant date	Jan 3, 1984
Priority date	—
Expiry date	Nov 12, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D5/0045
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Apparatus for condensing vapors at reduced pressure including a cooled vapor condenser having a liquid level sensor therein with a vacuum pump being connected by way of a control valve for drawing vapor from the vapor chamber of the condenser. The liquid level sensor opens and closes the control valve to control drawing of vapor from the vapor chamber in accordance with the level of liquid in the condenser.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.