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:
Jul. 11, 1989
Filed:
Jun. 07, 1988
Yngve Johansson, Norrkoping, SE;
Stal Refrigeration AB, Norrkoping, SE;
Abstract
Ice is formed by allowing water to partially evaporate in a vacuum. The ice can then be removed and be collected for subsequent use. For the creation of the vacuum, means for reduction of the pressure are required. A vapor compressor may be used for suction and compression of the water vapor to a pressure which enables condensing on a cold surface without freezing occurring. To be able to manufacture ice in a vacuum without using an expensive water vapor compressor, a method and a device for the manufacture of an ice slurry include which several cooperating vacuum chambers (1, 2, 3) with cold surfaces (6, 7, 8) used in a plant without a water vapor compressor. In this plant fresh water is supplied to one of the vacuum chambers for defrosting thereof, the thermal energy of the fresh water being utilized for that purpose. The precooled water thus formed is supplied to the other vacuum chambers, in which they will then form ice. From the chambers the formed ice is brought via pumps (22, 23, 24) to a collecting vessel (26), in which the proportion of ice in the ice slurry, thus formed, is increased by separating ice and water. The water is returned to the chambers and the ice slurry is removed for use or storage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile