Socket of pipe coupling
United States Patent D406881

Kuwabara, Tetsuya (Tokyo, JP)
Application Number:
Publication Date:
Filing Date:
Nitto Kohki Co., Ltd. (Tokyo, JP)
Primary Class:
Field of Search:
D23/40, D23/43, D23/19-22, D23/243, D23/262, 251/105, 251/148, 251/149.6, 251/152, 251/243, 251/315, 285/93, 137/614
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US Patent References:
D356147Hose coupling with water regulatorMarch, 1995ClivioD23/262
D334617Quick-connect couplingApril, 1993RomanD23/262
D333511Pipe couplerFebruary, 1993Mikiya et al.D23/262
D320842Quick-connect couplingOctober, 1991RomanD23/262
D315400Quick-connect coupling for a bulkheadMarch, 1991MedvickD23/262
D288229Quick-connective couplingFebruary, 1987BealD23/262

Primary Examiner:
Jackson, Marcus A.
Attorney, Agent or Firm:
Wenderoth, Lind & Ponack, L.L.P.
1. The ornamental design for a socket of pipe coupling, as shown in thedrawings and described above.


FIG. 1 is a perspective view of a socket of pipe coupling when seen from the top and left side of the rear, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a centrally vertically sectioned front view thereof.