Corona ring

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Description

FIG. 1 is a front elevation view of the corona ring, showing my new invention;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a perspective view thereof.

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 a corona ring, as shown and described.

Referenced Cited
U.S. Patent Documents
1690200 November 1928 Miller
1709697 April 1929 Wahlberg
2539641 January 1951 Sheadel
3252054 May 1966 Decker et al.
RE26066 July 1966 Huston
3471633 October 1969 Kaminski, Jr.
5077450 December 31, 1991 Rafiee
5552566 September 3, 1996 Lin et al.
D476295 June 24, 2003 Oohashi et al.
D532747 November 28, 2006 Ricci et al.
D550618 September 11, 2007 Ricci et al.
8331074 December 11, 2012 Zhang et al.
D722966 February 24, 2015 Smith
Other references
  • Sarjak Corona Toroids, dated Oct. 23, 2013, [online], [site visited Jul. 30, 2015]. Available from Internet, <URL: http://sarjakengineering.com/Products.html>.
  • JM Engineering Corona Rings, dated Apr. 16, 2013, [online], [site visited Jul. 30, 2015]. Available from Internet, <URL: http://www.jmengineering.co.in/circuit-breakers.aspx>.
Patent History
Patent number: D746775
Type: Grant
Filed: Aug 7, 2014
Date of Patent: Jan 5, 2016
Assignee: Siemens Aktiengesellschaft (Munich)
Inventors: Daniel Flohe (Berlin), Dirk Sagasser (Berlin)
Primary Examiner: Thomas Johannes
Assistant Examiner: Shawn T Gingrich
Application Number: 29/498,732
Classifications
Current U.S. Class: Voltage Regulator (D13/124)