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:
Sep. 29, 2020
Filed:
Jan. 30, 2018
Applicant:
Fieldpiece Instruments, Inc., Orange, CA (US);
Inventors:
Tinggui Hong, Orange, CA (US);
Jason Corbett Gilley, Orange, CA (US);
David M. Hines, Santa Ana, CA (US);
Assignee:
Fieldpiece Instruments, Inc., Orange, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 45/00 (2006.01); F25B 41/04 (2006.01);
U.S. Cl.
CPC ...
F25B 45/00 (2013.01); F25B 41/04 (2013.01); F25B 2345/002 (2013.01); F25B 2345/003 (2013.01); F25B 2345/006 (2013.01); F25B 2345/0051 (2013.01);
Abstract
A refrigerant recovery system includes a direct current (DC) motor and digital display and controls enabling an automatic self-test mode to insure proper operation prior to starting to service an HVAC system and a maintenance assist mode to diagnose and suggest maintenance for optimum performance of the refrigerant recovery system.