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:
Nov. 19, 2013
Filed:
Oct. 06, 2004
Uwe Schon, Neunkirchen, DE;
Heiko Zimmermann, Kronberg im Taunus, DE;
Gunter Fuhr, Berlin, DE;
Abstract
The invention relates to a cooling apparatus, especially for cryogenically preserving biological samples, comprising a duct () for delivering a coolant () to a cooling chamber (), a heater () that has an adjustable first heating performance (P) for heating the coolant () delivered to the cooling chamber (), a first temperature sensor (-) for measuring the temperature (T-T) in the cooling chamber (), a second temperature sensor () for measuring the temperature (T) of the coolant () delivered to the cooling chamber (), and a regulator () for regulating the temperature. Said regulator () is embodied as a multiple regulator which detects several temperatures (T-T) as control variables and/or adjusts several heating performances (P, P) as manipulated variables. The invention further relates to a corresponding operating method.