Plug of pipe coupling

- Nitto Kohki Co., Ltd.
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FIG. 1 is a perspective view of a plug of pipe coupling when seen from the top and left side of the front, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

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

FIG. 8 is a cross section taken across FIG. 6 along line VIII—VIII.


The ornamental design for a plug of pipe coupling, as shown and described.

Referenced Cited
U.S. Patent Documents
D325775 April 28, 1992 Hayes
D412738 August 10, 1999 Kuwabara
D435635 December 26, 2000 Taneya
D442267 May 15, 2001 Kouda
Patent History
Patent number: D463537
Type: Grant
Filed: Dec 4, 2001
Date of Patent: Sep 24, 2002
Assignee: Nitto Kohki Co., Ltd. (Tokyo)
Inventors: Izumi Kozu (Tokyo), Tomoko Someya (Tokyo)
Primary Examiner: Robin V. Taylor
Attorney, Agent or Law Firm: Wenderoth, Lind & Ponack, L.L.P.
Application Number: 29/151,003