Plug for pipe coupling

- Nitto Kohki Co., Ltd.
Description

FIG. 1 is a perspective view taken from the top, front and left side of a plug for pipe coupling 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; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
5507534 April 16, 1996 Reifenberger et al.
Foreign Patent Documents
9-170688 June 1997 JPX
10-220658 August 1998 JPX
11-94169 April 1999 JPX
Other references
  • Imperial Fluid Transmission Components, Catalog No. 114-C, "Male Pipe Thread 45 degree elbow", p. 106, 1982. Imperial-Eastman, Catalog No. 112, Fitting "474-F", p. 38, Aug. 1966.
Patent History
Patent number: D434834
Type: Grant
Filed: Apr 29, 1999
Date of Patent: Dec 5, 2000
Assignee: Nitto Kohki Co., Ltd. (Tokyo)
Inventor: Kunihiko Goto (Tokyo)
Primary Examiner: James Gandy
Assistant Examiner: Reid Hecker
Law Firm: Wenderoth, Lind & Ponack, L.L.P.
Application Number: 0/104,179
Classifications
Current U.S. Class: Coupling Or Joint (D23/262)
International Classification: 2301;