The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 1984
Filed:
Oct. 09, 1981
Karl-Heinz Bernhardt, Braunfels, DE;
Helmut Strzala, Braunfels, DE;
Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH, Assler, DE;
Abstract
Apparatus for heating and drying articles including an evacuable drying chamber for heating therein articles by condensation heat of the vapor of a first liquid supplied to the drying chamber, a vacuum pump for evacuating the boiler, a first vapor condenser and a second vapor condenser connected betwen the drying chamber and the vacuum pump, a thin film evaporator for receiving condensate from the drying chamber in the form of the first liquid and a second liquid having a higher boiling point than the first liquid, the second liquid being obtained from the articles within the drying chamber, a condensate collecting container for receiving from the evaporator liquid condensate which is not evaporated in the evaporator, a pressure barrier arranged between the evaporator and the collecting container and a re-evaporator arranged between the pressure barrier and the collecting container. The re-evaporator operates to lower the residual concentration of the first liquid and it is connected to the second vapor condenser thereby to reduce the residual concentration of the first liquid to a value corresponding to the vapor pressure in the second vapor condenser.