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. 13, 2021
Filed:
Mar. 27, 2019
Applicant:
Follett Corporation, Easton, PA (US);
Inventors:
Eric R. Seo, Bowmanstown, PA (US);
Glenn Eric Bonney, Macungie, PA (US);
Assignee:
Follett Corporation, Easton, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01);
U.S. Cl.
CPC ...
F25B 49/02 (2013.01); F25B 49/022 (2013.01); F25B 49/025 (2013.01); F25B 2500/19 (2013.01); F25B 2600/0253 (2013.01); F25B 2600/111 (2013.01); F25B 2600/112 (2013.01); F25B 2700/2117 (2013.01); F25B 2700/21172 (2013.01);
Abstract
A method for controlling a refrigeration device including a variable speed compressor and variable speed evaporator and condenser fans includes modifying a PID control scheme by calculating a factor to reduce the restart speed of the compressor depending on the length of time the compressor was at rest, and modulating the point of oscillation of the control process.