Coupling for a tank

- Nitto Kohki Co., Ltd.
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Description

FIG. 1 is a perspective view side of a coupling for a tank showing my 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; and,

FIG. 6

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D282772 February 25, 1986 Fleury
2524052 October 1950 Grant, Jr.
2530433 November 1950 Jaegle
3052256 September 1962 Smirles
4119295 October 10, 1978 Blocker
4697611 October 6, 1987 Winland et al.
4703775 November 3, 1987 Pastrone
Patent History
Patent number: D332307
Type: Grant
Filed: Jul 3, 1990
Date of Patent: Jan 5, 1993
Assignee: Nitto Kohki Co., Ltd. (Tokyo)
Inventor: Naoyuki Kotake (Tokyo)
Primary Examiner: Bernard Ansher
Assistant Examiner: Philip Hyder
Law Firm: Wenderoth, Lind & Ponack
Application Number: 7/547,155