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:
Jul. 16, 1996
Filed:
Jan. 19, 1994
Applicant:
Inventor:
Arthur Spring, Flawil, CH;
Assignee:
Buchi Labortechnik AG, Flawil, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
202175 ; 159-61 ; 159 251 ; 159D / ; 159D / ; 202205 ; 202238 ; 202265 ; 203D / ;
Abstract
An evaporator flask for a rotary evaporator is formed in two portions: a bowl and a lid secured to the bowl by a connecting ring. The lid is connected to a rotary drive means, and a conduit passes through the lid to provide fluid communication between the interior of the flask and a condenser. A mechanical scraper or stirrer is affixed to the end of the conduit within the bowl portion of the flask.