Plug-in electrical instrument

- Applied Power Inc.
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Description

FIG. 1 is a perspective view of a plug-in electrical instrument showing my new design;

FIG. 2 is a top elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side elevational view being a mirror image of FIG. 3;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom elevational view thereof;

FIG. 7 is a perspective view similar to FIG. 1 but of a second embodiment of a plug-in electrical instrument showing my new design;

FIG. 8 is a top elevational view thereof, the left, front, rear and bottom elevational views thereof being the same as the respective FIGS. 3-6, and the right side elevational view being a mirror image of FIG. 3;

FIG. 9 is a perspective view of a third embodiment of a plug-in electrical instrument showing my new design;

FIG. 10 is a top elevational view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a bottom elevational view thereof, the left and rear elevational views thereof being the same as the respective FIGS. 3 and 5, and the right side elevational view being a mirror image of FIG. 3;

FIG. 13 is a perspective view of a fourth embodiment of a plug-in electrical instrument showing my new design; and,

FIG. 14 is a top elevational view thereof, the left side, front, rear and bottom elevational views thereof being the same as respective FIGS. 3, 11, 5 and 12, and the right side elevational view being a mirror image of FIG. 3.

Referenced Cited
U.S. Patent Documents
D300809 April 25, 1989 Schwartz
D312583 December 4, 1990 Kopp
Other references
  • Applicant's Exhibit A, GB Electrical, Inc. Catalog #AD-240R, dated 1992, p. 130; showing GRT-500 Receptacle Tester and Circuit Analyzer and GFI-501 Ground Fault Indicator Tester. Applicant's Exhibit B, A.W. Sperry Instruments Inc., Model CS-500A Circuit Breaker Finder, admitted prior art. Applicant's Exhibit C, Specialized Products Company Catalog, p. 145, showing Ideal E-Z Check.RTM. Receptacle Analyzers, admitted prior art. Applicant's Exhibit D, GSA Systems, Inc., two pages showing plug-in housings, dated Dec. 1994, admitted prior art. Applicant's Exhibit E, two catalog pages showing ST-1, ST-1D, and ST-1THD circuit analyzers, admitted prior art.
Patent History
Patent number: D396013
Type: Grant
Filed: Jan 9, 1997
Date of Patent: Jul 14, 1998
Assignee: Applied Power Inc. (Butler, WI)
Inventor: Thomas M. Luebke (Menomonee Falls, WI)
Primary Examiner: Antoine Duval Davis
Law Firm: Quarles & Brady
Application Number: 0/64,746
Classifications
Current U.S. Class: Provided With Handle, Or Hand-held (D10/78)
International Classification: 1004;