Patent
   D929938
Priority
Jan 03 2019
Filed
Jul 02 2019
Issued
Sep 07 2021
Expiry
Sep 07 2036
Assg.orig
Entity
unknown
2
13
n/a
The ornamental design for a frequency converter, as shown and described.

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 perspective view of a frequency converter, showing our new design;

FIG. 2 is a front, left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The equal length broken lines in the drawings depict portions of the power module for a frequency converter that form no part of the claimed design.

Chen, Yan, Zhang, Xiang, Yu, Qi, Zheng, Chong Xing, Ma, Xing Long

Patent Priority Assignee Title
D955336, Mar 22 2018 Volt, LLC Outdoor lighting system transformer pedestal
D986168, Nov 17 2021 Power converter
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D685733, Feb 24 2010 ABB Schweiz AG Cabinet for a frequency converter
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D804416, Apr 09 2015 EPC Power Corporation Power inverter
D854499, Dec 12 2017 ABB Schweiz AG Equipment for control of electric power
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Jul 02 2019Siemens Aktiengesellschaft(assignment on the face of the patent)
Aug 16 2019MA, XING LONGSIEMENS NUMERICAL CONTROL LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0507350771 pdf
Aug 21 2019ZHANG, XIANGSIEMENS NUMERICAL CONTROL LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0507350771 pdf
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Aug 21 2019YU, QISIEMENS NUMERICAL CONTROL LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0507350771 pdf
Aug 21 2019ZHENG, CHONG XINGSIEMENS NUMERICAL CONTROL LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0507350771 pdf
Aug 23 2019SIEMENS NUMERICAL CONTROL LTD Siemens AktiengesellschaftASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0507350832 pdf
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