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. 16, 2001
Filed:
Dec. 18, 1998
Helmut Loscher, Nidderau, DE;
Hubert Heeg, Mömbris, DE;
Kendro Laboratory Products GmbH, Hanau, DE;
Abstract
To regulate the temperature in the processing chamber of an incubator with a fault protection function, two temperature sensors are provided to measure actual temperatures or rather sensor signals, and they and their associated peripherals undergo a plausibility check during which the sensor signals may not exceed a specified difference. if the plausibility condition is met and if an error in the feedback control circuit, for example a permanently closed contact of the temperature stabilization actuator, should cause the temperature sensor signal value (actual value) to exceed or fall below a specified error tolerance band about a desired value, then control is transferred from a first feedback control circuit to a primary feedback control circuit with a controller/monitoring device.