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:
Mar. 14, 2000
Filed:
Jun. 11, 1997
Applicant:
Inventor:
Michael D Carey, Holmen, WI (US);
Assignee:
American Standard Inc., Piscataway, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
F25B / ; F25B / ;
U.S. Cl.
CPC ...
62115 ; 62204 ; 62219 ;
Abstract
The existence of inverted start conditions in a refrigeration chiller is accurately identified by sensing the liquid level in the chiller evaporator. That liquid level is indicative of the location of the chiller's refrigerant charge at start-up. If the sensed liquid level is below a predetermined level, an inverted start condition is verified to exist. Failed starts and chiller system shutdowns are reduced or avoided as compared to systems in which less reliable indicators are used to identify the existence of inverted start conditions.