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. 22, 1986
Filed:
Jun. 25, 1985
Nissan Motor Co., Ltd., , JP;
Abstract
In an air cooling system including a compressor, a condenser, a liquid tank, an expansion valve and an evaporator which are connected through conduits to form a closed circuit refrigeration system, there is provided a refrigerant over-charging checking system for preventing the system from being overcharged with the refrigerant. The checking system comprises a service valve mounted in a conduit of the system and having therein a refrigerant inlet passage for flowing the refrigerant into the closed refrigeration system, a check mechanism associated with the service valve to block the refrigerant inlet passage when electrically energized, and a liquid level sensor associated with the liquid tank to electrically energize the check mechanism when a refrigerant level in the liquid tank rises to a predetermined level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile