Socket of pipe coupling

- Nitto Kohki Co., Ltd.

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.

Referenced Cited
U.S. Patent Documents
D288229 February 10, 1987 Beal
D315400 March 12, 1991 Medvick
D320842 October 15, 1991 Roman
D333511 February 23, 1993 Mikiya et al.
D334617 April 6, 1993 Roman
D356147 March 7, 1995 Clivio
Patent History
Patent number: D406881
Type: Grant
Filed: May 14, 1998
Date of Patent: Mar 16, 1999
Assignee: Nitto Kohki Co., Ltd. (Tokyo)
Inventor: Tetsuya Kuwabara (Tokyo)
Primary Examiner: Marcus A. Jackson
Law Firm: Wenderoth, Lind & Ponack, L.L.P.
Application Number: 0/88,390
Current U.S. Class: Coupling Or Joint (D23/262)
International Classification: 2301;