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:
Sep. 14, 1993
Filed:
Feb. 19, 1992
Applicant:
Inventor:
Arthur Spring, Flawil, CH;
Assignee:
Buchi Laboratorium-Technik AG, Flawil, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62499 ; 62 507 ; 62265 ; 277 95 ; 277 962 ;
Abstract
A sealing device for a rotary evaporator (1) possesses a two part vapor duct arrangement (6). With that, the component on the evaporator side (6a) is formed to rotate and the component (6b) on the cooler side is formed to be stationary. Both the components (6a, 6b) make contact with each other to form a seal in the area of the sealing surface (14).