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:
Jan. 30, 2001
Filed:
Mar. 25, 1999
Uwe Schwarzpaul, Siegen, DE;
Electrolux Siegen GmbH, Siegen, DE;
Abstract
A refrigerating system is proposed which comprises a cooling circuit,for cooling a cooling room,the cooling circuit,comprising an evaporator,arranged in the cooling room,and passed by a coolant and the power to be supplied to the cooling circuit,being adjustable, a control device,for making available to the cooling circuit,a performance value stating the power to be supplied, a temperature sensor,for making available to the control device,a temperature measurement value essentially stating the temperature of the coolant in the evaporator,a clock,for making available to the control device,a predetermined first time interval and a pre-determined second time interval following the first time interval, wherein the control device,during the first time interval makes available a first performance value stating an essentially constant first power to be supplied and after the end of the first time interval makes available a second performance value stating a second power to be supplied which is greater than the first power to be supplied, wherein the control device,at the beginning of the second time interval detects a first temperature value and at the end of the second time interval detects a second temperature value and issues a defect signal when the absolute value of difference between the first and the second temperature values is less than a pre-determined value of difference.