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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.:

US 11817254 B1

PDFFull Text
Date of Patent:
Nov. 14, 2023

Filed:

Apr. 20, 2021

Magnetic phase isolating harmonic filter for multi-phase power apparatus and method of use thereof

Applicants:

Hans Wennerstrom, Scottsdale, AZ (US);

Grant A. Maclennan, Tempe, AZ (US);

Inventors:

Hans Wennerstrom, Scottsdale, AZ (US);

Grant A. MacLennan, Tempe, AZ (US);

Assignee:
Attorneys:

Kevin H. Hazer

Hazer Patent Group, LLC

Primary Examiner:

Muhammad S Islam

Int. Cl.
CPC ...
H05K 7/20 (2006.01); H01F 27/28 (2006.01); H01F 27/32 (2006.01); H01F 27/10 (2006.01); H01F 27/255 (2006.01); H01F 27/08 (2006.01); H02M 1/12 (2006.01); H01F 27/30 (2006.01); H01F 7/00 (2006.01); H01F 27/26 (2006.01); H01F 1/24 (2006.01); H01G 4/40 (2006.01); H01G 4/38 (2006.01); H03H 7/01 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2895 (2013.01); H01F 7/00 (2013.01); H01F 27/085 (2013.01); H01F 27/10 (2013.01); H01F 27/255 (2013.01); H01F 27/266 (2013.01); H01F 27/2823 (2013.01); H01F 27/2876 (2013.01); H01F 27/306 (2013.01); H01F 27/324 (2013.01); H02M 1/126 (2013.01); H01F 1/24 (2013.01); H01F 27/08 (2013.01); H01G 4/38 (2013.01); H01G 4/40 (2013.01); H02M 1/123 (2021.05); H03H 7/01 (2013.01); Y02B 70/10 (2013.01);
Abstract

The invention comprises a harmonic filter apparatus and method of use thereof for magnetically isolating and filtering individual phases of three-phase power comprising a delta circuit that includes: (1) a first leg connecting to a second leg and a third leg and (2) first circuitry on the first leg matching second circuitry on the second leg, the first circuitry comprising at least two contactors electrically wired in parallel, the harmonic filter magnetically isolating individual phases of three-phase power, where inductor—coupled inductor pairs couple apexes of the delta circuit to individual phases of the three-phase power.

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