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:
Dec. 01, 1981
Filed:
May. 01, 1980
Arthur Spring, Flawil, CH;
Arthur Baehr, Flawil, CH;
Buchi Laboratoriums-Technik AG, Flawil, CH;
Abstract
A distilling unit for distilling a sample wherein the distillate is passed in a closed system into a receiver, comprises a heatable distilling vessel, a spray or splash protection means, a condenser and a distillate discharge pipe which dips into liquid in the receiver. In order to ensure that, when the distilling operation is interrupted after a predetermined period of time, the liquid is not sucked back into the apparatus by the vacuum which is formed, the distillate discharge pipe has a non-return valve which vents the apparatus when there is the slightest reduced pressure. In this way, the conventional support plate no longer has to be lowered by expensive lifting means, as hitherto.