Frequency converter

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Description

The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

FIG. 1 is a front, right side and top perspective view of a frequency converter comprising a new, original and ornamental design having an element shown in color red;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a right view thereof;

FIG. 8 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;

FIG. 9 is a front view thereof;

FIG. 10 is a back view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a left view thereof;

FIG. 14 is a right view thereof;

FIG. 15 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;

FIG. 16 is a front view thereof;

FIG. 17 is a back view thereof;

FIG. 18 is a top view thereof;

FIG. 19 is a bottom view thereof;

FIG. 20 is a left view thereof;

FIG. 21 is a right view thereof;

FIG. 22 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;

FIG. 23 is a front view thereof;

FIG. 24 is a back view thereof;

FIG. 25 is a top view thereof;

FIG. 26 is a bottom view thereof;

FIG. 27 is a left view thereof; and,

FIG. 28 is a right view thereof.

Claims

The ornamental design for a frequency converter, substantially as shown and described.

Referenced Cited
U.S. Patent Documents
D403301 December 29, 1998 Lehmann
D438176 February 27, 2001 Cornu
D508467 August 16, 2005 Decosse
D562234 February 19, 2008 Morihara
D586744 February 17, 2009 Jaskari
D595225 June 30, 2009 Juva
D654022 February 14, 2012 Sun
D661282 June 5, 2012 Tatara
D673910 January 8, 2013 Lostun
D685733 July 9, 2013 Savolainen
D736717 August 18, 2015 Duffy
D737761 September 1, 2015 Zhuang
D751504 March 15, 2016 Reiner
D753588 April 12, 2016 Reiner
D753589 April 12, 2016 Reiner
D788702 June 6, 2017 Jo
D790462 June 27, 2017 Yanagimoto
D804417 December 5, 2017 Baacke
20170077831 March 16, 2017 Yanagimoto
Patent History
Patent number: D1028887
Type: Grant
Filed: Feb 3, 2021
Date of Patent: May 28, 2024
Assignee: DANFOSS POWER ELECTRONICS A/S (Gråsten)
Inventor: Michael Sørensen (Gråsten)
Primary Examiner: Derrick E Holland
Application Number: 29/769,107
Classifications