Hole plug or the like

- Nifco Inc.
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Description

FIG. 1 is a front elevational view of a hole plug or the like, showing my new design;

FIG. 2 is a side elevational view taken from the left of FIG. 1;

FIG. 3 is a side elevational view taken from the right of FIG. 1;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top and left front perspective view thereof; and

FIG. 7 is a reduced side elevational view thereof, the sectional showing of a portion of a structure and a threaded insert therefor being for illustrative purposes only.

Referenced Cited
U.S. Patent Documents
D261357 October 20, 1981 Doonan
3722037 March 1973 Jaeger
3727271 April 1973 Znamirowski
3991446 November 16, 1976 Mooney et al.
4301629 November 24, 1981 Farr
Patent History
Patent number: D273091
Type: Grant
Filed: Dec 23, 1981
Date of Patent: Mar 20, 1984
Assignee: Nifco Inc. (Yokohama)
Inventor: Mutsuo Kurosaki (Kyoto)
Primary Examiner: B. J. Bullock
Attorneys: J. R. Halvorsen, T. W. Buckman
Application Number: 6/334,027
Classifications
Current U.S. Class: D/8499; D/8382