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:
Feb. 09, 1988
Filed:
Jul. 08, 1985
Hellmuth Sitte, Seefeld, AT;
C. Reichert Optische Werke A.G., Vienna, AT;
Abstract
Apparatus for treating biological specimens at low temperatures for subsequent microscopic examination comprises a container having a specimen treatment chamber disposed in a vessel adapted to contain liquid coolant. The specimen treatment chamber is adapted to receive a specimen to be treated and a specimen treatment medium. Precooling means is provided for precooling the specimen treatment medium before it is introduced to the specimen treatment chamber. The precooling means comprises a reservoir communicating with the specimen treatment chamber, and delivery means for delivering the specimen treatment medium to the reservoir. The reservoir and delivery means are arranged so that specimen treatment medium flowing through the reservoir and delivery means is cooled by the liquid coolant, and so that the specimen treatment medium can flow through the delivery means in countercurrent heat exchange with specimen treatment medium flowing from the reservoir to the specimen treatment chamber.