Plug of pipe coupling
United States Patent D463537

Kozu, Izumi (Tokyo, JP)
Someya, Tomoko (Tokyo, JP)
Application Number:
Publication Date:
Filing Date:
Nitto Kohki Co., Ltd. (Tokyo, JP)
Primary Class:
Other Classes:
D23/233, D23/260
Field of Search:
D23/233, 285/35, 251/149.1, D23/266, 251/150, 285/277, 285/34, D23/262, 285/275
View Patent Images:
US Patent References:
D325775Hose quick connector housingHayesD23/262
D412738Socket of pipe couplingKuwabaraD23/233
D435635Socket for a couplerTaneyaD23/233
D442267Pipe coupling socketKoudaD23/262

Primary Examiner:
Taylor, Robin V.
Attorney, Agent or Firm:
Wenderoth, Lind & Ponack, L.L.P.
1. The ornamental design for a plug of pipe coupling, as shown and described.

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.