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:
Nov. 07, 2017
Filed:
May. 23, 2014
Applicant:
Emerson Climate Technologies, Inc., Sidney, OH (US);
Inventors:
Daniel L. McSweeney, Sidney, OH (US);
Charles E. Green, Fenton, MO (US);
Stephen M. Seibel, Celina, OH (US);
Assignee:
Emerson Climate Technologies, Sidney, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01); F04C 29/04 (2006.01); F04B 39/06 (2006.01); F04C 28/28 (2006.01); F04B 35/04 (2006.01); F04C 18/02 (2006.01);
U.S. Cl.
CPC ...
F04C 28/28 (2013.01); F04B 35/04 (2013.01); F04C 29/045 (2013.01); F25B 49/022 (2013.01); F04B 39/06 (2013.01); F04C 18/0215 (2013.01); F04C 29/04 (2013.01); F04C 2240/81 (2013.01); F04C 2270/195 (2013.01); F04C 2270/701 (2013.01); F25B 2600/021 (2013.01);
Abstract
A system includes a compressor having a shell housing a compression mechanism driven by an electric motor in an on state and not driven by the electric motor in an off state. The system also includes a variable frequency drive that drives the electric motor in the on state by varying a frequency of a voltage delivered to the electric motor and that supplies electric current to a stator of the electric motor in the off state to heat the compressor.