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:
May. 26, 2026
Filed:
Jul. 31, 2023
Weiss Technik Gmbh, Reiskirchen, DE;
Yannik Zahrt, Rabenau, DE;
Weiss Technik GmbH, Reiskirchen, DE;
Abstract
A method and a test chamber for conditioning air, in which the test chamber comprises a temperature-insulated test space, which is closable to an environment and serves for receiving test material, and a temperature control device for controlling the test space in temperature, a temperature ranging from −40° C. to +180° C. being generable within the test space by the temperature control device. The temperature control device comprises a heating apparatus and a cooling apparatus having a cooling cycle, the cooling cycle having a refrigerant, a heat exchanger disposed in the test space, a compressor, a condenser and an expansion element, the refrigerant being a hydrocarbon or a refrigerant mixture made of hydrocarbons. A stop element is disposed in the cooling cycle downstream of the heat exchanger and upstream of the compressor, the stop element being able to stop reflux of refrigerant in the heat exchanger in the opposite direction of flow.