Three-phase power tester

- Fluke Corporation
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FIG. 1 is a top, front right perspective view of a three-phase power tester showing my new design.

FIG. 2 is a bottom, rear left perspective view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a front elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a left side elevation view thereof.

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line showing of structural features is included for the purpose of illustrating non-claimed portions and forms no part of the claimed design.


The ornamental design for a three-phase power tester, as shown and described.

Referenced Cited
U.S. Patent Documents
D397046 August 18, 1998 Oshizawa
D507979 August 2, 2005 Robinson
D726047 April 7, 2015 Laurino
Other references
  • Fluke, Technical Data, “Fluke 1732 and 1734 Three-Phase Electrical Energy Loggers”, © 2017 Fluke Corporation, 10 pgs.
  • Fluke, Technical Data, “1742, 1746 and 1748 Three-Phase Power Quality Loggers”, © 2017 Fluke Corporation, 12 pgs.
Patent History
Patent number: D938291
Type: Grant
Filed: Sep 20, 2019
Date of Patent: Dec 14, 2021
Assignee: Fluke Corporation (Everett, WA)
Inventor: Christopher D. Corrigan (Blacksburg, VA)
Primary Examiner: Antoine Duval Davis
Application Number: 29/706,488
Current U.S. Class: Electrical Property (D10/75)