Pipe coupler

- Nitto Kohki Co., Ltd.
Description

FIG. 1 is a perspective view taken from the top, front and left side of a pipe coupler showing our new design;

FIG. 2 is a front elevational view thereof, the rear being a mirror image of the front;

FIG. 3 is a top plan view thereof, the bottom being a mirror image of the top;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D313067 December 18, 1990 Kotake et al.
D315400 March 12, 1991 Medvick
2111956 March 1938 Baldwin
2225610 December 1940 Christian
3039794 June 1962 DeConzo
3177011 April 1965 Ogne
3359015 December 1967 Zahuranec
3473782 October 1967 Gessie
3507523 April 1970 Cadley
4498658 February 12, 1985 Mikiya
4988129 January 29, 1991 Saito et al.
Patent History
Patent number: D333179
Type: Grant
Filed: Sep 18, 1990
Date of Patent: Feb 9, 1993
Assignee: Nitto Kohki Co., Ltd. (Tokyo)
Inventors: Toshio Mikiya (Tokyo), Reichi Makishima (Tokyo)
Primary Examiner: James R. Largen
Law Firm: Wenderoth, Lind & Ponack
Application Number: 7/584,574
Classifications
Current U.S. Class: Coupling Or Joint (D23/262)