Transformer
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Description
The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.
Claims
The ornamental design for the transformer, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
| 1720413 | July 1929 | Greenwood |
| 4005297 | January 25, 1977 | Cleaveland |
| 4692577 | September 8, 1987 | Swanson |
| D567755 | April 29, 2008 | Heinzig |
| D567757 | April 29, 2008 | Hammer |
| 8278582 | October 2, 2012 | Tu |
| 9384923 | July 5, 2016 | Matuszak |
| 9767978 | September 19, 2017 | Brandt |
| 9793701 | October 17, 2017 | Springborn |
| 20030006334 | January 9, 2003 | Hoffmann |
| 20090255905 | October 15, 2009 | Lee |
| 20150109087 | April 23, 2015 | Golner |
- 800-kV converter transformer, posted at Siemens.com, posted on Oct. 1, 2008. online, site visited Oct. 24, 2017. Available from Internet: https://www.siemens.com/press/en/pressrelease/?press=/en/pressrelease/2008/power_transmission/ept200810001.htm.
- A single-phase three-winding converter transformer, posted at En.Wikipedia.org, posted on May 1, 2002. online, site visited Oct. 24, 2017. Available from Internet: https://en.wikipedia.org/wiki/High-voltage_direct_current#/media/File:Transformateur_du_complexe_La_Grande.jpg.
- Power Transformer Drying, posted at Youtube.com, posted on Jun. 3, 2013. online, site visited Oct. 24, 2017. Available from internet: https://www.youtube.com/watch?v=6LLVWzh47CY.
Patent History
Patent number: D933007
Type: Grant
Filed: Oct 21, 2016
Date of Patent: Oct 12, 2021
Assignee: Siemens Aktiengesellschaft (Munich)
Inventors: Andreas Beer (Grasbrunn), Grzegorz Dudkiewicz (Munich), Florian Lohse (Munich)
Primary Examiner: Mary Ann Calabrese
Assistant Examiner: Catherine Ho
Application Number: 29/581,779
Type: Grant
Filed: Oct 21, 2016
Date of Patent: Oct 12, 2021
Assignee: Siemens Aktiengesellschaft (Munich)
Inventors: Andreas Beer (Grasbrunn), Grzegorz Dudkiewicz (Munich), Florian Lohse (Munich)
Primary Examiner: Mary Ann Calabrese
Assistant Examiner: Catherine Ho
Application Number: 29/581,779
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)